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<SEC-DOCUMENT>0000015615-05-000031.txt : 20050323
<SEC-HEADER>0000015615-05-000031.hdr.sgml : 20050323
<ACCEPTANCE-DATETIME>20050323163231
ACCESSION NUMBER:		0000015615-05-000031
CONFORMED SUBMISSION TYPE:	8-K
PUBLIC DOCUMENT COUNT:		3
CONFORMED PERIOD OF REPORT:	20050317
ITEM INFORMATION:		Entry into a Material Definitive Agreement
ITEM INFORMATION:		Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant
ITEM INFORMATION:		Financial Statements and Exhibits
FILED AS OF DATE:		20050323
DATE AS OF CHANGE:		20050323

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			MASTEC INC
		CENTRAL INDEX KEY:			0000015615
		STANDARD INDUSTRIAL CLASSIFICATION:	WATER, SEWER, PIPELINE, COMM AND POWER LINE CONSTRUCTION [1623]
		IRS NUMBER:				650829355
		STATE OF INCORPORATION:			FL
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		8-K
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-08106
		FILM NUMBER:		05699479

	BUSINESS ADDRESS:	
		STREET 1:		800 DOUGLAS ROAD
		STREET 2:		12TH FLOOR
		CITY:			CORAL GABLES
		STATE:			FL
		ZIP:			33134
		BUSINESS PHONE:		3055991800

	MAIL ADDRESS:	
		STREET 1:		800 DOUGLAS ROAD
		STREET 2:		12TH FLOOR
		CITY:			CORAL GABLES
		STATE:			FL
		ZIP:			33134

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	BURNUP & SIMS INC
		DATE OF NAME CHANGE:	19920703
</SEC-HEADER>
<DOCUMENT>
<TYPE>8-K
<SEQUENCE>1
<FILENAME>form8kfltamd10.htm
<TEXT>
<HTML>
<HEAD>
<TITLE></TITLE>
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<H1 ALIGN=CENTER><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=3>UNITED STATES <br> SECURITIES AND EXCHANGE
COMMISSION <br>Washington, D.C. 20549 </FONT></H1>





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     <P ALIGN=CENTER>_________________ </P>

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<H1 ALIGN=CENTER><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=4>FORM 8-K </FONT></H1>

<!-- MARKER FORMAT-SHEET="Head Major Center Bold-Arial" FSL="Workstation" -->
<H1 ALIGN=CENTER><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2>CURRENT REPORT <br> Pursuant to Section 13
or 15(d) of <br> The Securities Exchange
Act of 1934</FONT></H1>





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<P ALIGN="Center"><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Date
of report (Date of earliest event reported) <U>March 17, 2005</U> </FONT></P>

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<P ALign=CENTER><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=4><u>MASTEC, INC. </u></font></P><br>
<P ALIGN="Center"><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2>(Exact Name of
Registrant as Specified in Its Charter)</FONT></p>


<!-- MARKER FORMAT-SHEET="Head Major Center Bold 1-Arial" FSL="Workstation" -->
<p ALIGN=CENTER><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2><b><u>Florida</U></b> <br>(State or Other
Jurisdiction of Incorporation) </FONT></p>


<TABLE CELLPADDING="0" CELLSPACING="0" BORDER="0" ALIGN="Center" WIDTH="600">
<TR VALIGN=Bottom>
     <TH><FONT FACE="Arial"></FONT></TH>
     <TH><FONT FACE="Arial"></FONT></TH></TR>
<TR VALIGN=Bottom>
     <TD WIDTH=40% ALIGN=center><FONT FACE="Arial" SIZE="2">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
&nbsp;&nbsp;&nbsp;<u><b>0-08106</b></u></FONT></TD>
<td width=10% align=left></td>
     <TD WIDTH=50% ALIGN=center><FONT FACE="Arial" SIZE="2"><u><b>65-0829355</b></u></FONT></TD></TR>
<TR VALIGN=Bottom>
     <TD ALIGN=center><FONT FACE="Arial" SIZE="2">(Commission File Number)</FONT></TD><td></td>
     <TD ALIGN=center><FONT FACE="Arial" SIZE="2">(IRS Employer Identification No.)</FONT></TD></TR>
</TABLE>


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<P ALIGN=CENTER><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2><u><b>800 S. Douglas Road,
12<SUP>th</SUP> Floor, Coral Gables, Florida 33134</b></u> <br>(Address of Principal
Executive Offices) (Zip Code) </FONT></P>


<!-- MARKER FORMAT-SHEET="Head Major Center Bold-Arial" FSL="Workstation" -->
<p ALIGN=CENTER><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2><u><b>(305) 599-1800 </b></u>
<br> (Registrant&#146;s
Telephone Number, Including Area Code)</FONT></p>



<!-- MARKER FORMAT-SHEET="Head Major Center Bold-Arial" FSL="Workstation" -->
<P ALIGN=CENTER><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2><b><u>N/A </u></b><br>(Former Name or Former
Address, if Changed Since Last Report)</FONT></p>

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<P ALIGN="Justify"><FONT FACE="Arial" SIZE="2">Check the appropriate box below if
the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the
registrant under any of the following provisions: </FONT></P>
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<P><FONT FACE="Arial" SIZE="2"> </FONT></P>
<!-- MARKER FORMAT-SHEET="Para Flush" FSL="Default" -->
<P><FONT FACE="Arial" SIZE="2">[  ]  Written communications
pursuant to Rule 425 under the Securities Act (17 CFR 230.425) </FONT></P>

<!-- MARKER FORMAT-SHEET="Para Flush" FSL="Default" -->
<P><FONT FACE="Arial" SIZE="2">[  ]  Soliciting material pursuant
to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) </FONT></P>

<!-- MARKER FORMAT-SHEET="Para Flush" FSL="Default" -->
<P><FONT FACE="Arial" SIZE="2">[  ]  Pre-commencement
communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) </FONT></P>

<!-- MARKER FORMAT-SHEET="Para Flush" FSL="Default" -->
<P><FONT FACE="Arial" SIZE="2">[  ]  Pre-commencement
communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) </FONT></P>


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<HR SIZE=5 COLOR=GRAY NOSHADE>


<!-- MARKER FORMAT-SHEET="Head Major Left Bold-Arial" FSL="Workstation" -->
<H1 ALIGN=LEFT><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2>ITEM 1.01.&nbsp;
&nbsp;Entry into a Material Definitive Agreement </FONT></H1>

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<P ALIGN="Justify"><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2>On March 17, 2005, MasTec and its bank
group amended the loan agreement for its $125 million credit facility. We are required to
be in compliance with certain financial covenants measured on a monthly basis. As a result
of our net loss for the year ended December 31, 2004, we would not have been in compliance
with the fixed charge coverage ratio requirement as of December 31, 2004. The amendment to
the credit facility modified this covenant and other covenants and we are in compliance
with the credit facility&#146;s financial covenants as of December 31, 2004. </FONT></P>

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<P><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2>A copy of the amendment is attached
and incorporated by reference herein. </FONT></P>

<!-- MARKER FORMAT-SHEET="Para Flush Lv 0-Arial" FSL="Workstation" -->
<P><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2><B>ITEM 2.03 Creation of Direct
Financial Obligations or an Obligation Under an off the Balance Sheet Arrangement or a
Registrant</B> </FONT></P>

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<P><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2>The discussion under Item 1.01 of this
Current Report on Form 8-K is incorporated under this Item 2.03 as if set forth herein. </FONT></P>

<!-- MARKER FORMAT-SHEET="Head Major Left Bold-Arial" FSL="Workstation" -->
<H1 ALIGN=LEFT><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2>ITEM&nbsp;9.01 Financial
Statements, Pro Forma Financial Information and Exhibits </FONT></H1>

<!-- MARKER FORMAT-SHEET="Para (List) Flush Lv 0- Arial" FSL="Workstation" -->
     <P><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2>(a)&nbsp;&nbsp;&nbsp;&nbsp;
          Not applicable</FONT></P>


<!-- MARKER FORMAT-SHEET="Para (List) Flush Lv 0- Arial" FSL="Workstation" -->
     <P><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2>(b)&nbsp;&nbsp;&nbsp;&nbsp;
          Not applicable</FONT></P>


<!-- MARKER FORMAT-SHEET="Para (List) Flush Lv 0- Arial" FSL="Workstation" -->
     <P><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2>(c)&nbsp;&nbsp;&nbsp;&nbsp;
          Exhibits. The following will be filed as an amendment to this report:</FONT></P>







<TABLE  CELLPADDING="0" CELLSPACING="0" ALIGN="CENTER">
<TR VALIGN="BOTTOM">
     <TH width=15%><FONT FACE="Arial" SIZE="2" COLOR="Black">Exhibit Number </font></TH>
     <TH width=5%><FONT FACE="Arial" SIZE="2" COLOR="Black">&nbsp;</font></TH>
     <TH width=80%><FONT FACE="Arial" SIZE="2" COLOR="Black"> Description </font></TH></TR>
<TR VALIGN="TOP">
    <TD WIDTH="15%"><FONT FACE="Arial" SIZE="2" COLOR="Black">10.31</font></Td>

  <TD WIDTH="5%"><FONT FACE="Arial" SIZE="2" COLOR="Black">&nbsp;</font></Td>
     <TD WIDTH="80%"><FONT FACE="Arial" SIZE="2" COLOR="Black">  Amendment No. 10 to Revolving Credit and Security Agreement dated March 17, 2005.</font></TD></TR>
</TABLE>



<P STYLE="page-break-after:always">
</P>




<!-- MARKER FORMAT-SHEET="Head Minor Center-Arial" FSL="Workstation" -->
<P ALIGN=CENTER><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2>SIGNATURE </FONT></P>

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<P ALIGN="Justify"><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2>Pursuant
to the requirements of the Securities Exchange Act of 1934, as amended, the Registrant has
duly caused this report to be signed on its behalf by the undersigned thereunto duly
authorized. </FONT></P>

<P ALIGN="Left"><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2>Date:   March 23, 2005</FONT></P>
<!-- MARKER FORMAT-SHEET="Signature (Single)" FSL="Workstation" -->
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<TR VALIGN=TOP>
<TD WIDTH=40%><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2></FONT></TD>
<TD WIDTH=10%><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2></FONT></TD>
<TD WIDTH=50%><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2><B>MasTec, Inc.</B><BR><BR>
<BR>BY: /S/ Austin Shanfelter<BR>&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;<BR>
Austin Shanfelter<BR>Chief Executive Officer<br> MasTec, Inc</FONT></TD>
</TR>
</TABLE>
<BR>


<BR><BR><BR><BR>



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</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-10
<SEQUENCE>2
<FILENAME>amendment10.htm
<TEXT>




<HTML>
<HEAD>
<TITLE></TITLE>
</HEAD>
<BODY>

<TABLE  CELLPADDING="0" CELLSPACING="0" ALIGN="CENTER">
<TR VALIGN="BOTTOM">
     <TH width=15%><FONT FACE="Arial" SIZE="2" COLOR="Black">Exhibit Number </font></TH>
     <TH width=5%><FONT FACE="Arial" SIZE="2" COLOR="Black">&nbsp;</font></TH>
     <TH width=80%><FONT FACE="Arial" SIZE="2" COLOR="Black"> Description </font></TH></TR>
<TR VALIGN="TOP">
    <TD WIDTH="15%"><FONT FACE="Arial" SIZE="2" COLOR="Black">10.31</font></Td>

  <TD WIDTH="5%"><FONT FACE="Arial" SIZE="2" COLOR="Black">&nbsp;</font></Td>
     <TD WIDTH="80%"><FONT FACE="Arial" SIZE="2" COLOR="Black">  Amendment No. 10 to Revolving Credit and Security Agreement dated March 17, 2005.</font></TD></TR>
</TABLE>



<P STYLE="page-break-after:always">
</P>

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<TABLE WIDTH=100% CELLPADDING=0 CELLSPACING=0>
<TR VALIGN=TOP>
<TD WIDTH=20%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp; </FONT></TD>
<TD WIDTH=80%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>
 </FONT></TD>
</TR>
</TABLE>
<BR>



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<H1 ALIGN=CENTER><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2><u>AMENDMENT NO. 10 TO
REVOLVING CREDIT AND SECURITY AGREEMENT,<br>AND WAIVER  </u></FONT></H1>



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<P ALIGN="Justify"><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;THIS
AMENDMENT NO. 10 TO REVOLVING CREDIT AND SECURITY AGREEMENT AND WAIVER (this
&#147;Amendment&#148;) is made and entered into as of March 17, 2005, between MasTec,
Inc., a Florida corporation (&#147;MasTec&#148;), the Subsidiaries of MasTec identified on
the signature pages hereto (together with MasTec, hereinafter collectively referred to as
the &#147;Borrowers&#148;), the financial institutions party from time to time to the Loan
Agreement (as hereinafter defined) (the &#147;Lenders&#148;) and Fleet Capital
Corporation, a Rhode Island corporation, as administrative agent (the &#147;Administrative
Agent&#148;) for the Lenders. </FONT></P>

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<H1 ALIGN=CENTER><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2>Recitals: </FONT></H1>

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<P ALIGN="Justify"><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The
Borrowers, the Lenders and the Administrative Agent are parties to a Revolving Credit and
Security Agreement dated as of January 22, 2002 (as amended and in effect on the date
hereof, the &#147;Loan Agreement&#148;), pursuant to which the Lenders have made certain
revolving credit loans and letter of credit accommodations to or for the benefit of the
Borrowers. </FONT></P>

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<P ALIGN="Justify"><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The
Borrowers have requested that the Lenders agree to amend the Loan Agreement to, among
other things, amend the financial covenants set forth in Section 11.1 of the Loan
Agreement. </FONT></P>

<!-- MARKER FORMAT-SHEET="Para Large Indent Lv 0-Arial" FSL="Workstation" -->
<P ALIGN="Justify"><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The
Borrowers have informed the Administrative Agent and the Lenders that a Default exists
under the Loan Agreement (the &#147;Designated Default&#148;) by reason of the granting to
DirecTV, Inc. by MasTec North America, Inc. of a second priority lien upon Inventory sold
to MasTec North America, Inc. by DirecTV, Inc., in violation of Sections 7.2(a) and 8.7 of
the Loan Agreement. The Borrowers have further requested that the Lenders waive the
Designated Default. </FONT></P>

<!-- MARKER FORMAT-SHEET="Para Large Indent Lv 0-Arial" FSL="Workstation" -->
<P ALIGN="Justify"><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Upon
the terms and subject to the conditions hereinafter set forth, the Lenders have agreed so
to amend the Loan Agreement, to waive the Designated Default. </FONT></P>

<!-- MARKER FORMAT-SHEET="Para Large Indent Lv 0-Arial" FSL="Workstation" -->
<P ALIGN="Justify"><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;NOW,
THEREFORE, for TEN DOLLARS ($10.00) in hand paid and other good and valuable
consideration, the receipt and sufficiency of which are hereby severally acknowledged, the
parties hereto, intending to be legally bound hereby, agree as follows: </FONT></P>

<!-- MARKER FORMAT-SHEET="Para (List) Indent Lv 0- Arial" FSL="Workstation" -->
     <P ALIGN="Justify"><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;<B>1.</B>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
          <B><U>Definitions</U>.</B> All capitalized terms used in this Amendment, unless
          otherwise defined herein, shall have the meaning ascribed to such terms in the
          Loan Agreement. </FONT></P>


<!-- MARKER FORMAT-SHEET="Para (List) Indent Lv 0- Arial" FSL="Workstation" -->
     <P ALIGN="Justify"><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;<B>2.</B>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
          <B><U>Amendments to Loan Agreement</U>.</B> Subject to the provisions of Section
          4 of this Amendment, the Loan Agreement is hereby amended as follows: </FONT></P>


<!-- MARKER FORMAT-SHEET="Para (List) Indent Lv 0- Arial" FSL="Workstation" -->
     <P ALIGN="Justify"><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;(a)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
          By deleting the definitions of &#147;Comcast Concentration Limit,&#148;
          &#147;DirecTV Concentration Limit,&#148; &#147;Fixed Charge Coverage
          Ratio,&#148; &#147;Letter of Credit Facility,&#148; &#147;Letter of Credit
          Reserve,&#148; and &#147;Liberty Letter of Credit,&#148; set forth in Section
          1.1 of the Loan Agreement and by substituting the following new definitions in
          lieu thereof: </FONT></P>






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<TABLE WIDTH=100% CELLPADDING=0 CELLSPACING=0 BORDER=0>
<TR VALIGN=TOP>
<TD WIDTH=5%><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH=95%><P ALIGN="Justify"><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&#147;Comcast
Concentration Percentage&#148; means 15%, or such lesser percentage as the Administrative
Agent may in its reasonable credit judgment determine from time to time.</FONT></P>
</TD>
</TR>
</TABLE>
<BR>









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<TABLE WIDTH=100% CELLPADDING=0 CELLSPACING=0 BORDER=0>
<TR VALIGN=TOP>
<TD WIDTH=5%><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH=95%><P ALIGN="Justify"><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
&nbsp;&nbsp;&nbsp;&#147;DirecTV
Concentration Percentage&#148; means (a) at any time that DirecTV&#146;s corporate credit
rating or senior debt rating (secured or unsecured) by Moody&#146;s is Ba3 or higher and
by S&amp;P is BB or higher, 30%; <U>provided</U><U>that</U>, if Borrowers maintain a
Fixed Charge Coverage Ratio as reflected on Borrowers&#146; quarterly financial
statements and the related officer&#146;s certificate delivered in accordance with the
respective provisions of Section&nbsp;10.1(b) and 10.3, on average for any period of 4
consecutive Fiscal Quarters ended on or after June&nbsp;30, 2005, greater than or equal
to 1.25 to 1.00, and no Default or Event of Default exists, then, for the Fiscal Quarter
immediately succeeding such 4 consecutive Fiscal Quarter period, so long as DirecTV&#146;s
ratings are not less than the levels set forth in this clause (a), 35%; (b) at any time
that DirecTV&#146;s corporate credit rating or senior debt rating (secured or unsecured)
by Moody&#146;s is lower than Ba3 or by S&amp;P is lower than BB, 20%; or (c)
irrespective of DirecTV&#146;s rating, such lesser percentage as the Administrative Agent
may in its reasonable credit judgment determine from time to time. </FONT></P>
</TD>
</TR>
</TABLE>
<BR>








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<TABLE WIDTH=100% CELLPADDING=0 CELLSPACING=0 BORDER=0>
<TR VALIGN=TOP>
<TD WIDTH=5%><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH=95%><P ALIGN="Justify"><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&#147;Fixed
Charge Coverage Ratio&#148; means, for any specified accounting period, the ratio of
EBITDA of MasTec&#146;s NAOperations for such period, adjusted, as appropriate, to add
back any Non-Cash Non-Recurring Charge Amounts deducted in computing such EBITDA, less
the sum of cash income taxes paid and Restricted Payments (other than to the extent
permitted by this Agreement), Restricted Distributions (other than to the extent
permitted by this Agreement), and Net Capital Expenditures (other than Financed Capex)
made, on a consolidated basis by MasTec&#146;s NAOperations during such period, to the
sum of their consolidated interest expense for such period and current maturities of
long-term Debt as of the date of determination, provided that for any specified
accounting period of less than 12 consecutive months, current maturities of long-term
Debt as of the date of determination shall be multiplied by a fraction, the numerator of
which is the number of months included in such specified accounting period and the
denominator of which is 12. </FONT></P>
</TD>
</TR>
</TABLE>
<BR>


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<TABLE WIDTH=100% CELLPADDING=0 CELLSPACING=0 BORDER=0>
<TR VALIGN=TOP>
<TD WIDTH=5%><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH=95%><P ALIGN="Justify"><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
&nbsp;&nbsp;&nbsp;&#147;Letter
of Credit Guarantee Facility&#148; means a subfacility of the Revolving Credit Facility
providing for the issuance of (a) Letters of Credit and Letter of Credit Guarantees as
described in Article 3 in an aggregate amount of Letter of Credit Obligations at any one
time outstanding not to exceed $45,000,000, plus (b) the amount available to be drawn
from time to time under the Liberty Letter of Credit, plus (c) the amount available to be
drawn from time to time under the Canadian Financing Letter of Credit.</FONT></P>
</TD>
</TR>
</TABLE>
<BR>






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<TABLE WIDTH=100% CELLPADDING=0 CELLSPACING=0 BORDER=0>
<TR VALIGN=TOP>
<TD WIDTH=5%><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH=95%><P ALIGN="Justify"><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
&nbsp;&nbsp;&#147;Letter
of Credit Reserve&#148; means, at any time, the aggregate Letter of Credit Obligations at

such time, other than Letter of Credit Obligations that are fully secured by Cash
Collateral. For the avoidance of doubt, at any time that the Liberty Letter of Credit is
outstanding, the amount of the Letter of Credit Reserve attributable to the Liberty
Letter of Credit at such time shall be equal to the lesser of (i)&nbsp;$32,300,000 and
(ii)&nbsp;the greatest amount of Letter of Credit Obligations that at any time may be
outstanding under the Liberty Letter of Credit in accordance with the terms thereof.  </FONT></P>
</TD>
</TR>
</TABLE>
<BR>






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<TABLE WIDTH=100% CELLPADDING=0 CELLSPACING=0 BORDER=0>
<TR VALIGN=TOP>
<TD WIDTH=5%><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH=95%><P ALIGN="Justify"><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
&nbsp;&nbsp;&nbsp;&#147;Liberty
Letter of Credit&#148; means Letter of Credit No. ASL-1 S1295730-120MAT issued by the
Issuing Bank for the account of MasTec and for the benefit of Liberty Mutual Insurance
Company in an aggregate amount available to be drawn thereunder not to exceed $32,300,000
at any time.</FONT></P>
</TD>
</TR>
</TABLE>
<BR>

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     <P ALIGN="Justify"><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;
(b)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
         By deleting clause&nbsp;(d) in the definition of &#147;Eligible Account&#148;
          in Section&nbsp;1.1 of the Loan Agreement and by substituting the following new
          clause&nbsp;(d) in lieu thereof: </FONT></P>

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<TABLE WIDTH=100% CELLPADDING=0 CELLSPACING=0 BORDER=0>
<TR VALIGN=TOP>
<TD WIDTH=5%>&nbsp;</TD>
<TD WIDTH=95%><P ALIGN="Justify"><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2>
(d)
such Account is not owing by an Account Debtor more than 20% (or as to any
          Approved Account Debtor, 50%) of whose then-existing accounts owing to all the
          Loan Parties do not meet the requirements set forth in clause (b) above;
          provided that, any such Account owing by Comcast that is unpaid not more than
60           days after its due date or more than 90 days after the invoice date, net of
bad           debt allowance, shall be considered an Eligible Account for purposes of (i)
          Borrowers&#146; Borrowing Base Certificate that was submitted as of February
28,           2005 (provided that Borrower updates such Borrowing Base Certificate to
reflect           changes in the Accounts owing by Comcast that have occurred since
January 31,           2005, and resubmits such updated Borrowing Base Certificate to the
          Administrative Agent), and (ii) Borrowers&#146; Borrowing Base Certificate
          submitted as of March 25, 2005;  </FONT></p></TD>
</TR>
</TABLE>
<BR>


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     <P ALIGN="Justify"><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;
(c)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
         By inserting the following new definitions in Section 1.1 of the Loan Agreement
          in proper alphabetical sequence: </FONT></P>


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<TABLE WIDTH=100% CELLPADDING=0 CELLSPACING=0 BORDER=0>
<TR VALIGN=TOP>
<TD WIDTH=5%><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH=95%><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
&nbsp;&nbsp;&#147;Net
Capital Expenditures&#148; means, with respect to any fiscal period Borrowers, the sum of
all Capital Expenditures made during such fiscal period less the amount of cash proceeds
received by Borrowers from sales of Equipment made during such fiscal period in
accordance with the terms of this Agreement. </FONT>
</TD>
</TR>
</TABLE>
<BR>


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<TABLE WIDTH=100% CELLPADDING=0 CELLSPACING=0 BORDER=0>
<TR VALIGN=TOP>
<TD WIDTH=5%><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH=95%><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&#147;Verizon&#148;means,
collectively, Verizon Communications Inc. and its Affiliates and Subsidiaries.  </FONT>
</TD>
</TR>
</TABLE>
<BR>







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<TABLE WIDTH=100% CELLPADDING=0 CELLSPACING=0 BORDER=0>
<TR VALIGN=TOP>
<TD WIDTH=5%><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH=95%><P ALIGN="Justify"><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
&nbsp;&nbsp;&#147;Verizon
Concentration Limit&#148; means (a) at any time that Verizon&#146;s corporate credit
rating or senior debt rating (secured or unsecured) by Moody&#146;s is Baa3 or higher and
by S&amp;P BBB- or higher, 30%; if Borrowers maintain a Fixed Charge Coverage Ratio as
reflected on Borrowers&#146; quarterly financial statements and the related officer&#146;s
certificate delivered in accordance with the respective provisions of Section&nbsp;10.1(b)
and 10.3, on average for any period of 4 consecutive Fiscal Quarters ended on or after
June&nbsp;30, 2005, greater than or equal to 1.25 to 1.00, and no Default or Event of
Default exists, then, for the Fiscal Quarter immediately succeeding such 4 consecutive
Fiscal Quarter period, so long as Verizon&#146;s ratings are not less than the levels set
forth in this clause (a), 35%; (b) at any time that Verizon&#146;s corporate credit
rating or senior debt rating (secured or unsecured) by Moody&#146;s is lower than Baa3 or
by S&amp;P is lower than BBB-, 20%; or (c)&nbsp;irrespective of Verizon&#146;s rating,
such lesser percentage as the Administrative Agent may in its reasonable credit judgment
determine from time to time.</FONT></P>
</TD>
</TR>
</TABLE>
<BR>





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     <P ALIGN="Justify"><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;
(d)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
          By deleting Sections 11.1 (a) and (b) and by substituting the following new
          Sections&nbsp;11.1(a) and (b) in lieu thereof: </FONT></P>




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<TABLE WIDTH=100% CELLPADDING=0 CELLSPACING=0 BORDER=0>
<TR VALIGN=TOP>
<TD WIDTH=10%><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH=90%><P ALIGN="Justify"><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;
&nbsp;&nbsp;&nbsp;&nbsp;(a)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<U>Tangible
Net Worth.</U> Permit consolidated Tangible Net Worth of                MasTec&#146;s
NAOperations to be less than the sum set forth below at any time                during
the period corresponding thereto:</FONT></P>
</TD>
</TR>
</TABLE>
<BR>








<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="70%" ALIGN="Center">
<TR VALIGN="BOTTOM">
     <TH WIDTH="50%"><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE="2"><u> Period </u></FONT></TH>
     <TH WIDTH="2%"><FONT FACE="Arial, Helvetica, Sans-Serif"></FONT></TH>
     <TH WIDTH="48%" ALIGN="Left"><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE="2"><u>Amount</u></FONT></TH></TR>
<TR>
      <TD WIDTH="50%"> <br></TD>
      <TD> </TD>
      <TD> </TD></TR>

<TR VALIGN="TOP">
     <TD><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE="2">December 31, 2004</FONT></TD>
     <TD WIDTH="5%" ALIGN="Right"><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE="2">$</FONT></TD>
     <TD ALIGN="Left" WIDTH="45%"><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE="2">45,000,000.00</FONT></TD></TR>
<TR>
      <TD WIDTH="50%"> <br></TD>
      <TD> </TD>
      <TD> </TD></TR>
<TR VALIGN="TOP">
     <TD><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE="2">January 31, 2005, through May 31, 2005</FONT></TD>
     <TD ALIGN="Right"><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE="2">$</FONT></TD>
     <TD><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE="2">40,000,000.00</FONT></TD></TR>
<TR>
      <TD WIDTH="50%"> <br></TD>
      <TD> </TD>
      <TD> </TD></TR>
<TR VALIGN="TOP">
     <TD><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE="2">June 30, 2005, through August 31, 2005</FONT></TD>
     <TD ALIGN="Right"><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE="2">$</FONT></TD>
     <TD><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE="2">45,000,000.00</FONT></TD></TR>
<TR>
      <TD WIDTH="50%"> <br></TD>
      <TD> </TD>
      <TD> </TD></TR>
<TR VALIGN="TOP">
     <TD><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE="2">September 30, 2005 through November 30, 2005</FONT></TD>
     <TD ALIGN="Right"><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE="2">$</FONT></TD>
     <TD><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE="2">53,500,000.00</FONT></TD></TR>
<TR>
      <TD WIDTH="50%"> <br></TD>
      <TD> </TD>
      <TD> </TD></TR>
<TR VALIGN="TOP">
     <TD><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE="2">December 1, 2005, and at all times thereafter</FONT></TD>
     <TD ALIGN="Right"><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE="2">$</FONT></TD>
     <TD><P ALIGN="Justify"><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE="2">53,500,000.00 <b>plus</b> (ii) an amount
                                                                                equal  to 50% of  consolidated  Net
                                                                                Income (but without  deduction  for
                                                                                any   Net    Loss)   of    MasTec's
                                                                                NAOperations  for the  period  from
                                                                                December 1,  2005, through the date
                                                                                of  determination,   treated  as  a
                                                                                single accounting period.</FONT></P></TD></TR>
</TABLE>



<br>


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<TABLE WIDTH=100% CELLPADDING=0 CELLSPACING=0 BORDER=0>
<TR VALIGN=TOP>
<TD WIDTH=10%><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH=90%><P ALIGN="Justify"><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;
&nbsp;&nbsp;&nbsp;&nbsp;(b)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <U>Fixed Charge Coverage Ratio.</U> Permit the Fixed Charge Coverage Ratio to be
               less than the ratio set forth below for the period corresponding thereto:</FONT></P>
</TD>
</TR>
</TABLE>
<BR>




















<TABLE CELLSPACING="0" ALIGN="Center" WIDTH="50%" BORDER="0">
<TR VALIGN="BOTTOM">
     <TH WIDTH="50%"><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE="2"><U>Period</U></FONT></TH>
     <TH WIDTH="50%"><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE="2"><U>Ratio</U></FONT></TH></TR>

<TR>
      <TD WIDTH="50%"> <br></TD>
      <TD> </TD>
      <TD> </TD></TR>
<TR VALIGN="TOP">
     <TD ALIGN="Justify"><P><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE="2">The 9-calendar month period<br>ending on December 31, 2004
</FONT></p></TD>
     <TD WIDTH="50%" ALIGN="Center"><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE="2">1.50 to 1.00</FONT></TD></TR>
     <TR>
      <TD WIDTH="50%"> <br></TD>
      <TD> </TD>
      <TD> </TD></TR>
<TR VALIGN="TOP">
     <TD ALIGN="Justify"><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE="2">The 10-calendar month period <br> ending January 31, 2005</FONT></TD>
     <TD ALIGN="Center"><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE="2">1.15 to 1.00</FONT></TD></TR>
  <TR>
      <TD WIDTH="50%"> <br></TD>
      <TD> </TD>
      <TD> </TD></TR>
<TR VALIGN="TOP">
     <TD ALIGN="Justify"><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE="2">The 11-calendar month period <br> ending on February 28, 2005</FONT></TD>
     <TD ALIGN="Center"><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE="2">1.15 to 1.00</FONT></TD></TR>
     <TR>
      <TD WIDTH="50%"> <br></TD>
      <TD> </TD>
      <TD> </TD></TR>
<TR VALIGN="TOP">
     <TD ALIGN="Justify"><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE="2">The 12-month period <br> ending on March 31, 2005</FONT></TD>
     <TD ALIGN="Center"><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE="2">1.20 to 1.00</FONT></TD></TR>
<TR>
      <TD WIDTH="50%"> <br></TD>
      <TD> </TD>
      <TD> </TD></TR>
<TR VALIGN="TOP">
     <TD ALIGN="Justify"><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE="2">The 12-month period <br> ending on April 30, 2005</FONT></TD>
     <TD ALIGN="Center"><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE="2">1.20 to 1.00</FONT></TD></TR>
<TR>
      <TD WIDTH="50%"> <br></TD>
      <TD> </TD>
      <TD> </TD></TR>
<TR VALIGN="TOP">
     <TD ALIGN="Justify"><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE="2">The 12-month period <bR>ending on May 31, 2005</FONT></TD>
     <TD ALIGN="Center"><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE="2">1.20 to 1.00</FONT></TD></TR>
 <TR>
      <TD WIDTH="50%"> <br></TD>
      <TD> </TD>
      <TD> </TD></TR>
<TR VALIGN="TOP">
     <TD ALIGN="Justify"><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE="2">The 12-month period <br>ending on June 30, 2005</FONT></TD>
     <TD ALIGN="Center"><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE="2">1.25 to 1.00</FONT></TD></TR>
    <TR>
      <TD WIDTH="50%"> <br></TD>
      <TD> </TD>
      <TD> </TD></TR>
<TR VALIGN="TOP">
     <TD ALIGN="Justify"><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE="2">The 12-month period <br>ending on July 31, 2005</FONT></TD>
     <TD ALIGN="Center"><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE="2">1.25 to 1.00</FONT></TD></TR>
<TR>
      <TD WIDTH="50%"> <br></TD>
      <TD> </TD>
      <TD> </TD></TR>
<TR VALIGN="TOP">
     <TD ALIGN="Justify"><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE="2">The 12-month period <br>ending on August 31, 2005</FONT></TD>
     <TD ALIGN="Center"><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE="2">1.25 to 1.00</FONT></TD></TR>
<TR>
      <TD WIDTH="50%"> <br></TD>
      <TD> </TD>
      <TD> </TD></TR>
<TR VALIGN="TOP">
     <TD ALIGN="Justify"><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE="2">The 12-month period <br>ending on September 30, 2005</FONT></TD>
     <TD ALIGN="Center"><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE="2">1.50 to 1.00</FONT></TD></TR>
<TR>
      <TD WIDTH="50%"> <br></TD>
      <TD> </TD>
      <TD> </TD></TR>
<TR VALIGN="TOP">
     <TD ALIGN="Justify"><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE="2">The 12-month period <br>ending on October 31, 2005</FONT></TD>
     <TD ALIGN="Center"><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE="2">1.50 to 1.00</FONT></TD></TR>
  <TR>
      <TD WIDTH="50%"> <br></TD>
      <TD> </TD>
      <TD> </TD></TR>
<TR VALIGN="TOP">
     <TD ALIGN="Justify"><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE="2">The 12-month period <br>ending on November 30, 2005</FONT></TD>
     <TD ALIGN="Center"><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE="2">1.50 to 1.00</FONT></TD></TR>
    <TR>
      <TD WIDTH="50%"> <br></TD>
      <TD> </TD>
      <TD> </TD></TR>
<TR VALIGN="TOP">
     <TD ALIGN="Justify"><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE="2">The 12-month period <br> ending on December 31, 2005 and each 12-month period ending on the last day of each calendar month thereafter</FONT></TD>
     <TD ALIGN="Center"><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE="2">2.00 to 1.00</FONT></TD></TR>
</TABLE>




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     <P ALIGN="Justify"><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;<B>3.</B>&nbsp;&nbsp;&nbsp;&nbsp;
&nbsp;&nbsp;&nbsp;
          <B><U>Limited Waiver of Designated Default.</U> </B>Subject to the provisions of
          Section 4 of this Amendment, the Administrative Agent and the Lenders hereby
          waive the Designated Default in effect on the date hereof. In no event shall the
          foregoing waiver be deemed to constitute a waiver of (i) any Default or Event of
          Default that may exist on the date of this Amendment (other than the Designated
          Default) or (ii) the Borrowers&#146; respective obligations to comply with all
          of the terms and conditions of the Loan Agreement and the other Loan Documents
          from and after the date hereof. Notwithstanding any prior, temporary mutual
          disregard of the terms of any contracts between the parties, each Borrower
          hereby agrees that it shall be required strictly to comply with all of the terms
          of the Loan Agreement and the other Loan Documents on and after the date hereof. </FONT></P>


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     <P ALIGN="Justify"><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;<B>4.</B>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
          <B><U>Conditions to Effectiveness</U>. </B>The provisions of Sections 2 and 3 of
          this Amendment shall become effective as of the date hereof, in each case on the
          date (the &#147;Amendment No. 10 Effective Date&#148;) on which the
          Administrative Agent shall have received, on or before March 15, 2005:
          (a)&nbsp;a fee in the amount of $93,750 for the Ratable account of the Lenders,
          which fee is earned on the date hereof and is not subject to refund or rebate of
          any kind whatsoever, and (b) the following documents, each of which shall be
          satisfactory in form and substance to the Administrative Agent and in sufficient
          copies for each Lender: </FONT></P>


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          <TABLE WIDTH=100% CELLPADDING=0 CELLSPACING=0>
               <TR VALIGN=TOP>
               <TD ALIGN=RIGHT WIDTH=10%></TD>
               <TD WIDTH=90%><P ALIGN="Justify"><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;(i)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
               this Amendment duly executed and delivered by the Borrowers, the Required
               Lenders and the Administrative Agent; </FONT></P></TD>
               </TR>
               </TABLE>
               <BR>

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          <TABLE WIDTH=100% CELLPADDING=0 CELLSPACING=0>
               <TR VALIGN=TOP>
               <TD ALIGN=RIGHT WIDTH=10%></TD>
               <TD WIDTH=90%><P ALIGN="Justify"><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;(ii)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
               a certificate of the secretary or assistant secretary of each Borrower having
               attached thereto the articles or certificate of incorporation and bylaws of such
               Borrower (or containing the certification of such secretary or assistant
               secretary that no amendment or modification of such articles or certificate of
               incorporation or bylaws has become effective since the last date on which such
               documents were last delivered to the Lenders), all corporate or company action,
               including shareholders&#146; or members&#146; approval, if necessary, has been
               taken by such Borrower and/or its shareholders or members to authorize the
               execution, delivery and performance of this Amendment and to the further effect
               that the incumbency certificate most recently delivered to the Lenders remains
               in effect, unchanged; </FONT></P></TD>
               </TR>
               </TABLE>
               <BR>

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          <TABLE WIDTH=100% CELLPADDING=0 CELLSPACING=0>
               <TR VALIGN=TOP>
               <TD ALIGN=RIGHT WIDTH=10%></TD>
               <TD WIDTH=90%><P ALIGN="Justify"><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;(iii)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
               a certificate of the chief executive officer of MasTec stating that, to the best
               of his or her knowledge and based on an examination sufficient to enable him or
               her to make an informed statement, after giving effect to the Amendment and to
               the revised Schedules to the Loan Agreement delivered therewith, </FONT></P></TD>
               </TR>
               </TABLE>
               <BR>






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<TABLE WIDTH=100% CELLPADDING=0 CELLSPACING=0 BORDER=0>
<TR VALIGN=TOP>
<TD WIDTH=15%><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH=85%><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(A)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;               all
of the representations and warranties made or deemed to be made under the
               Loan Agreement are true and correct on and as of the Amendment No. 10
Effective                Date, and </FONT>
</TD>
</TR>
</TABLE>
<BR>




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<TABLE WIDTH=100% CELLPADDING=0 CELLSPACING=0 BORDER=0>
<TR VALIGN=TOP>
<TD WIDTH=15%><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH=85%><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(B)
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;          no Default or Event of Default exists; </FONT>
</TD>
</TR>
</TABLE>
<BR>



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<TABLE WIDTH=100% CELLPADDING=0 CELLSPACING=0 BORDER=0>
<TR VALIGN=TOP>
<TD WIDTH=15%><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH=85%><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;and
the Administrative Agent shall be satisfied as to the truth and accuracy thereof; and </FONT>
</TD>
</TR>
</TABLE>
<BR>





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          <TABLE WIDTH=100% CELLPADDING=0 CELLSPACING=0>
               <TR VALIGN=TOP>
               <TD ALIGN=RIGHT WIDTH=10%></TD>
               <TD WIDTH=90%><P ALIGN=LEFT><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2>
&nbsp;&nbsp;&nbsp;&nbsp;(iv)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
               such other documents and instruments as any Lender through the Administrative
               Agent may reasonably request. </FONT></P></TD>
               </TR>
               </TABLE>
               <BR>














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     <P ALIGN="Justify"><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;<B>5.</B>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
          <B><U>Representations and Warranties</U>.</B> To induce the Administrative Agent
          and the Lenders to enter into this Amendment, each Borrower hereby makes the
          following representations and warranties to the Administrative Agent and the
          Lenders, which representations and warranties shall survive the delivery of this
          Amendment and the making of additional Loans under the Loan Agreement as amended
          hereby: </FONT></P>














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<TD WIDTH=10%><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH=90%><P ALIGN="Justify"><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(a)
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<U>Authorization
of Agreements</U>. Each Borrower has the right and power, and                has taken
all necessary action to authorize it, to execute, deliver and perform                this
Amendment and each other agreement contemplated hereby to which it is a
               party in accordance with their respective terms. This Amendment and each
other                such agreement contemplated hereby to which it is a party has been
duly executed                and delivered by the duly authorized officers of such
Borrower and each is, or                each when executed and delivered in accordance
with this Amendment will be, a                legal, valid and binding obligation of such
Borrower, enforceable in accordance                with its terms. </FONT></p>
</TD>
</TR>
</TABLE>
<BR>



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<TD WIDTH=10%><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH=90%><P ALIGN="Justify"><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
&nbsp;&nbsp;&nbsp;(b)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<U>Compliance
of Agreements with Laws</U>. The execution, delivery and                performance of
this Amendment in accordance with their respective terms do not                and will
not, by the passage of time, the giving of notice or otherwise, </FONT></p>
</TD>
</TR>
</TABLE>
<BR>








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<TD WIDTH=15%><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH=85%><P ALIGN="Justify"><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(i)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;               require
any Governmental Approval that has not been obtained or violate any           Applicable
Law relating to such Borrower or any of its Subsidiaries,  </FONT></p>
</TD>
</TR>
</TABLE>
<BR>



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<TD WIDTH=15%><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH=85%><P ALIGN="Justify"><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
&nbsp;&nbsp;&nbsp;(ii)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;               conflict with, result in a breach of or constitute a default under the articles
          or certificate of incorporation or by-laws or other constituent documents or any
          shareholders&#146; or members&#146; agreement of such Borrower or any of its
          Subsidiaries, any material provisions of any indenture, agreement or other
          instrument to which such Borrower, any of its Subsidiaries or any of such
          Borrower&#146;s or such Subsidiaries&#146; property may be bound or any
          Governmental Approval relating to such Borrower or any of its Subsidiaries, or   </FONT></p>
</TD>
</TR>
</TABLE>
<BR>


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<TR VALIGN=TOP>
<TD WIDTH=15%><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH=85%><P ALIGN="Justify"><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
&nbsp;&nbsp;&nbsp;(iii)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;              result in or require the creation or imposition of any Lien upon or with
          respect to any property now owned or hereafter acquired by such Borrower other
          than the Security Interest.   </FONT></p>
</TD>
</TR>
</TABLE>
<BR>


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<TD WIDTH=10%><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH=90%><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
&nbsp;&nbsp;&nbsp;(c)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<U>DirecTV Agreements</U> </FONT>
</TD>
</TR>
</TABLE>
<BR>



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<TABLE WIDTH=100% CELLPADDING=0 CELLSPACING=0 BORDER=0>
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<TD WIDTH=15%><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH=85%><P ALIGN="Justify"><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
&nbsp;&nbsp;&nbsp;(i)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;             Borrowers have delivered to Administrative Agent true, correct and complete
          copies of that certain DirecTV, Inc. 2003 Home Services Provider Agreement dated
          March 1, 2003, between DirecTV, Inc. and MasTec North America, Inc., as amended
          by that certain First Amendment to That 2003 Home Services Provider Agreement
          between MasTec North America, Inc. and DirecTV, Inc. (the &#147;First
          Amendment&#148;), dated October 6, 2003, and by that certain Second Amendment to
          That 2003 Home Services Provider Agreement between MasTec North America, Inc.
          and DirecTV, Inc. (the &#147;Second Amendment&#148;), dated February __, 2004
          (as so amended, the &#147;DirecTV Home Services Provider Agreement&#148;).  </FONT></p>
</TD>
</TR>
</TABLE>
<BR>





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<TR VALIGN=TOP>
<TD WIDTH=15%><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH=85%><P ALIGN="Justify"><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
&nbsp;&nbsp;&nbsp;(ii)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;            On March 17, 2005, MasTec North America, Inc. delivered a notice to DirecTV,
          Inc. in the form attached to this Amendment as <U>Exhibit A</U>.  </FONT></p>
</TD>
</TR>
</TABLE>
<BR>




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<TD WIDTH=15%><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH=85%><P ALIGN="Justify"><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
&nbsp;&nbsp;&nbsp;(iii)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;           Other than the DirecTV Home Services Provider Agreement, MasTec North America,
          Inc.<B><I> </I></B><I></I>is not<B><I> </I></B><I></I>a party to any other
          agreement with DirecTV, Inc.  </FONT></p>
</TD>
</TR>
</TABLE>
<BR>










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     <P ALIGN="Justify"><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;<B>6.</B>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
          <B><U>Additional Covenants</U>.</B> To induce the Administrative Agent and the
          Lenders to enter into this Amendment, each Borrower hereby covenants and agrees
          with the Administrative Agent and the Lenders as follows: </FONT></P>




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<TABLE WIDTH=100% CELLPADDING=0 CELLSPACING=0 BORDER=0>
<TR VALIGN=TOP>
<TD WIDTH=10%><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH=90%><P ALIGN="Justify"><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
&nbsp;&nbsp;&nbsp;(a)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Such Borrower shall cause MasTec North America, Inc. to deliver to the
               Administrative Agent, within ninety (90)&nbsp;days of the date this Amendment
               becomes effective, a copy of a fully executed and effective new agreement (the
               &#147;New DirecTV Agreement&#148;) between MasTec North America, Inc. and
               DirecTV, Inc. that replaces the Home Services Provider Agreement in its entirety
               and modifies all of DirecTV, Inc.&#145;s rights of setoff and recoupment so as
               to provide (by language acceptable to the Administrative Agent in its reasonable
               credit judgment) that the New DirectTV Agreement shall be subject and
               subordinate to any security interest granted by MasTec North America, Inc. in
               the accounts receivable arising under the New DirectTV Agreement to Fleet
               Capital Corporation, as administrative agent for the Lenders under MasTec North
               America, Inc.&#145;s Revolving Credit and Security Agreement, as may be amended
               from time to time; and </FONT></P>
</TD>
</TR>
</TABLE>
<BR>

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<TABLE WIDTH=100% CELLPADDING=0 CELLSPACING=0 BORDER=0>
<TR VALIGN=TOP>
<TD WIDTH=10%><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH=90%><P ALIGN="Justify"><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
&nbsp;&nbsp;&nbsp;(b)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;No such Borrower shall (i) enter into any agreement with DirecTV, Inc. other
               than the New DirecTV Agreement, (ii) modify or amend the Home Services Provider
               Agreement other than to replace it with the New DirecTV Agreement, or (iii)
               after the date on which MasTec North America, Inc. delivers to the
               Administrative Agent a copy of the New DirecTV Agreement, modify or amend the
               New DirecTV Agreement unless Borrowers shall have delivered written notice of
               such modification or amendment to the Administrative Agent no fewer than three
               (3) Business Days prior to the effective date of such modification or amendment.
               Each Borrower acknowledges and agrees that the Administrative Agent is
               authorized to establish Additional Reserves with respect to such matters and in
               such amounts as the Administrative Agent may determine in the exercise of its
               reasonable credit judgment and that the Administrative Agent may do so in
               response to any modification or amendment of the New DirecTV Agreement. Nothing
               in the foregoing shall limit or restrict in any way the right of the
               Administrative Agent to establish, change and otherwise employ any other
               Additional Reserve or any other reserve from time to time in the exercise of its
               reasonable credit judgment, or to exercise any other right or remedy available
               to the Administrative Agent under the Loan Agreement or otherwise upon the
               occurrence of any Default or any Event of Default.</FONT></P>
</TD>
</TR>
</TABLE>
<BR>


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     <P ALIGN="Left"><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;<B>7.</B>&nbsp;&nbsp;&nbsp;&nbsp;
&nbsp;&nbsp;&nbsp;
          <B><U>Filing of Form 10-K</U></B><U></U>. MasTec&#146;s annual report on Form 10-K for its
Fiscal Year ended December 31, 2004, shall be filed with the Securities and Exchange
Commission on or before March 31, 2005. Such annual report shall include financial
statements for MasTec and its Consolidated Subsidiaries that are reported on, without
qualification, by BDO Seidman LLP and are identical in all material respects to the
financial statements contained in the draft Form 10-K for its Fiscal Year ended December
31, 2004, as delivered on March 17, 2005, to the Administrative Agent and the Lenders. </FONT></P>




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     <P ALIGN="Justify"><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;<B>8.</B>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
          <B><U>Effect of Amendment</U>.</B> From and after the Amendment No. 10 Effective
          Date, all references in the Loan Agreement and in any other Loan Document to
          &#147;this Agreement,&#148; &#147;the Loan Agreement,&#148;
          &#147;hereunder,&#148; &#147;hereof&#148; and words of like import referring to
          the Loan Agreement, shall mean and at any time of determination be references to
          the Loan Agreement as amended by this Amendment. Except as expressly amended
          hereby, the Loan Agreement and all terms, conditions and provisions thereof
          remain in full force and effect and are hereby ratified and confirmed. The
          execution, delivery and effectiveness of this Amendment shall not, except as
          expressly provided herein, operate as a waiver of any right, power or remedy of
          the Administrative Agent or any Lender under any of the Loan Documents, nor
          constitute a waiver of any provision of any of the Loan Documents. </FONT></P>


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     <P ALIGN="Justify"><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;<B>9.</B>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
          <B><U>Breach of Amendment</U>. </B>Any breach by the Borrowers of any
          representation, warranty or covenant contained herein shall constitute an Event
          of Default. </FONT></P>


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     <P ALIGN="Justify"><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;<B>10.</B>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
          <B><U>Counterpart Execution; Facsimile Signatures</U></B><U></U>. This Amendment
          may be executed in any number of counterparts and by different parties hereto in
          separate counterparts, each of which when so executed and delivered shall be
          deemed to be an original and all of which taken together shall constitute but
          one and the same agreement. Any signature delivered by a party by facsimile
          transmission shall be deemed to be an original signature hereto. </FONT></P>


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     <P ALIGN="Justify"><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;<B>11.</B>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
          <B><U>Governing Law</U>.</B> This Amendment shall be governed by and construed
          in accordance with the laws of the State of Georgia without giving effect to
          conflicts of law principles thereof. </FONT></P>


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     <P ALIGN="Justify"><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;<B>12.</B>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
          <B><U>Successors and Assigns</U>.</B> This Amendment shall be binding upon and
          inure to the benefit of the parties hereto and their respective successors and
          assigns. </FONT></P>


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     <P ALIGN="Justify"><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;<B>13.</B>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
          <B><U>Further Assurances</U>. </B>The Borrowers agree to take such further
          actions as any Lender through the Administrative Agent shall reasonably request
          from time to time in connection herewith to evidence or give effect to the
          amendments set forth herein or any of the transactions contemplated hereby. </FONT></P>


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     <P ALIGN="Justify"><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;<B>14.</B>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
          <B><U>Section Titles</U>.</B> Section titles and references used in this
          Amendment shall be without substantive meaning or content of any kind whatsoever
          and are not a part of the agreement among the parties hereto. </FONT></P>


<!-- MARKER FORMAT-SHEET="Para (List) Indent Lv 0- Arial" FSL="Workstation" -->
     <P ALIGN="Justify"><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;<B>15.</B>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
          <B><U>Waiver of Jury Trial</U>. To the fullest extent permitted by Applicable
          Law, each of the parties hereto hereby waives the right to trial by jury in any
          action, suit, counterclaim or proceeding arising out of or related to this
          Amendment.</B> </FONT></P>


<!-- MARKER FORMAT-SHEET="Para (List) Indent Lv 0- Arial" FSL="Workstation" -->
     <P ALIGN="Justify"><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;<B>16.</B>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
          <B><U>Release of Claims</U>. To induce the Administrative Agent and the Lenders
          to enter into this Amendment, each Borrower hereby releases, acquits and forever
          discharges the Administrative Agent and the Lenders, and all officers,
          directors, agents, employees, successors and assigns of the Administrative Agent
          and the Lenders, from any and all liabilities, claims, demands, actions or
          causes of action of any kind or nature (if there be any), whether absolute or
          contingent, disputed or undisputed, at law or in equity, or known or unknown,
          that such Borrower now has or ever had against Agent or any Lender arising under
          or in connection with any of the Loan Documents or otherwise. Each Borrower
          represents and warrants to the Administrative Agent and the Lenders that such
          Borrower has not transferred or assigned to any Person any claim that such
          Borrower ever had or claimed to have against the Administrative Agent or any
          Lender.</B> </FONT></P>


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     <P ALIGN="Justify"><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;<B>17.</B>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
          <B><U>Expenses of Administrative Agent</U>.</B> The Borrowers agree to pay,
          <B>on demand</B>, all costs and expenses reasonably incurred by the
          Administrative Agent in connection with the preparation, negotiation and
          execution of this Amendment and any other Loan Documents executed pursuant
          hereto and any and all amendments, modifications, and supplements thereto,
          including, without limitation, the reasonable costs and fees of the
          Administrative Agent&#146;s legal counsel and any taxes or expenses associated
          with or incurred in connection with any instrument or agreement referred to
          herein or contemplated hereby. </FONT></P>


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<P ALIGN=CENTER><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2>[SIGNATURES BEGIN ON
FOLLOWING PAGE] </FONT></P>



<P STYLE="page-break-after:always">
</P>




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<P><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;IN
WITNESS WHEREOF, the parties hereto have caused this Amendment to be duly executed under
seal and delivered by their respective duly authorized officers as of the date first
written above. </FONT></P>








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<TD WIDTH=10%><FONT FACE="Times New Roman, Times, Serif" SIZE=2></FONT></TD>
<TD WIDTH=50%><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2><B>FLEET CAPTIAL CORPORATION</b><br> as the Administrative Agent and as
a Lender<BR><BR>
<BR>BY: <u>/S/ Dennis Losin &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</u><BR>

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Dennis Losin<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;SVP</FONT></TD>
</TR>
</TABLE>


<br>














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<TD WIDTH=10%><FONT FACE="Times New Roman, Times, Serif" SIZE=2></FONT></TD>
<TD WIDTH=50%><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2><B>WACHOVIA BANK, NATIONAL <br>ASSOCIATION,
 as a Lender</b><BR><BR>
<BR>BY: <u>/S/ Ryan Parnell &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</u><BR>

 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Ryan Parnell<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
Vice President</FONT></TD>
</TR>
</TABLE>

<br>










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<TD WIDTH=10%><FONT FACE="Times New Roman, Times, Serif" SIZE=2></FONT></TD>
<TD WIDTH=50%><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2><B>LASALLE BUSINESS CREDIT, LLC,<br>
successor in interest to LaSALLE<br> BUSINESS CREDIT, INC.,
 as a Lender</b><BR><BR>
<BR>BY: <u>/S/ Douglas Colletti &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</u><BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Douglas Colletti<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
Senior Vice President</FONT></TD>
</TR>
</TABLE>


 <br>



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<TD WIDTH=10%><FONT FACE="Times New Roman, Times, Serif" SIZE=2></FONT></TD>
<TD WIDTH=50%><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2><B> JPMORGAN CHASE BANK, as a Lender</b>
<BR><BR>
<BR>BY: <u>/S/ Jeffery S Ackerman&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</u><BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Jeffery S Ackerman<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
Vice President</FONT></TD>
</TR>
</TABLE>



<br>



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<TD WIDTH=10%><FONT FACE="Times New Roman, Times, Serif" SIZE=2></FONT></TD>
<TD WIDTH=50%><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2><B> PNC BANK, NATIONAL <br>ASSOCIATION,
 as a Lender</b><BR><BR>
<BR>BY: <u>/S/ Alex M Council IV&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</u><BR>

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Alex M Council IV<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
Vice President</FONT></TD>
</TR>
</TABLE>





<br>










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<P ALIGN="Center"><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2>  [SIGNATURES CONTINUE ON FOLLOWING PAGE]</FONT></P>


<P STYLE="page-break-after:always">
</P>






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<P ALIGN="Center"><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2><b>BORROWERS: </b></FONT></P>


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<TD WIDTH=40%><FONT FACE="Times New Roman, Times, Serif" SIZE=2></FONT></TD>
<TD WIDTH=10%><FONT FACE="Times New Roman, Times, Serif" SIZE=2> <b> </B></FONT></TD>
<TD WIDTH=50%><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2><B> MASTEC, INC.</b><br>
 <BR>
<BR>BY: <u>/S/ Michael Nearing&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</u><BR>
&nbsp;&nbsp;&nbsp;
&nbsp;
Michael Nearing<BR> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
Executive Vice President</FONT></TD>
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<TD WIDTH=50%><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2><B> CHURCH &amp; TOWER, INC.</b><br>
 <BR>
<BR>BY: <u>/S/ Michael Nearing&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</u><BR>
&nbsp;&nbsp;&nbsp;
&nbsp;
Michael Nearing<BR> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
Executive Vice President</FONT></TD>
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<TD WIDTH=50%><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2><B> CHURCH &amp; TOWER  ENVIRONMENTAL, INC.</b> <br>
 <BR>
<BR>BY: <u>/S/ Michael Nearing&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</u><BR>
&nbsp;&nbsp;&nbsp;
&nbsp;
Michael Nearing<BR> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
Executive Vice President</FONT></TD>
</TR>
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<TD WIDTH=50%><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2><B> CRUZ-CELL, INC.</b><br>
 <BR>
<BR>BY: <u>/S/ Michael Nearing&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</u><BR>
&nbsp;&nbsp;&nbsp;
&nbsp;
Michael Nearing<BR> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
Executive Vice President</FONT></TD>
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<TD WIDTH=50%><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2><B> DRESSER/AREIA CONSTRUCTION, INC.</b><br>
 <BR>
<BR>BY: <u>/S/ Michael Nearing&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</u><BR>
&nbsp;&nbsp;&nbsp;
&nbsp;
Michael Nearing<BR> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
Executive Vice President</FONT></TD>
</TR>
</TABLE>
<BR>


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<TD WIDTH=50%><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2><B>     FLAIRE INCORPORATED</b><br>
 <BR>
<BR>BY: <u>/S/ Michael Nearing&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</u><BR>
&nbsp;&nbsp;&nbsp;
&nbsp;
Michael Nearing<BR> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
Executive Vice President</FONT></TD>
</TR>
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<BR>






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<TD WIDTH=50%><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2><B>     MASTEC INTEGRATION SYSTEMS, INC.</b><br>
 <BR>
<BR>BY: <u>/S/ Michael Nearing&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</u><BR>
&nbsp;&nbsp;&nbsp;
&nbsp;
Michael Nearing<BR> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
Executive Vice President</FONT></TD>
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</TABLE>
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<TD WIDTH=50%><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2><B>       MASTEC NETWORK SERVICES, INC.</b><br>
 <BR>
<BR>BY: <u>/S/ Michael Nearing&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</u><BR>
&nbsp;&nbsp;&nbsp;
&nbsp;
Michael Nearing<BR> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
Executive Vice President</FONT></TD>
</TR>
</TABLE>
<BR>



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<TD WIDTH=50%><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2><B>      MASTEC NORTH AMERICA, INC.</b><br>
 <BR>
<BR>BY: <u>/S/ Michael Nearing&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</u><BR>
&nbsp;&nbsp;&nbsp;
&nbsp;
Michael Nearing<BR> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
Executive Vice President</FONT></TD>
</TR>
</TABLE>
<BR>




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<TD WIDTH=50%><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2><B>      MASTEC TELCOM &amp; ELECTRICAL SERVICES, INC. </b><br>
 <BR>
<BR>BY: <u>/S/ Michael Nearing&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</u><BR>
&nbsp;&nbsp;&nbsp;
&nbsp;
Michael Nearing<BR> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
Executive Vice President</FONT></TD>
</TR>
</TABLE>
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<TD WIDTH=50%><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2><B>       PROTEL IND., INC.</b><br>
 <BR>
<BR>BY: <u>/S/ Michael Nearing&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</u><BR>
&nbsp;&nbsp;&nbsp;
&nbsp;
Michael Nearing<BR> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
Executive Vice President</FONT></TD>
</TR>
</TABLE>
<BR>


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<TD WIDTH=50%><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2><B>      RENEGADE OF IDAHO, INC.</b><br>
 <BR>
<BR>BY: <u>/S/ Michael Nearing&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</u><BR>
&nbsp;&nbsp;&nbsp;
&nbsp;
Michael Nearing<BR> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
Executive Vice President</FONT></TD>
</TR>
</TABLE>
<BR>



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<TD WIDTH=50%><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2><B>       S.S.S. CONSTRUCTION, INC.</b><br>
 <BR>
<BR>BY: <u>/S/ Michael Nearing&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</u><BR>
&nbsp;&nbsp;&nbsp;
&nbsp;
Michael Nearing<BR> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
Executive Vice President</FONT></TD>
</TR>
</TABLE>
<BR>



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<TD WIDTH=50%><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2><B>       UPPER VALLEY UTILITIES CORP.</b><br>
 <BR>
<BR>BY: <u>/S/ Michael Nearing&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</u><BR>
&nbsp;&nbsp;&nbsp;
&nbsp;
Michael Nearing<BR> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
Executive Vice President</FONT></TD>
</TR>
</TABLE>
<BR>



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<TD WIDTH=50%><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2><B>        WILDE HOLDING CO., INC.</b><br>
 <BR>BY: <u>/S/ Michael Nearing&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</u><BR>
&nbsp;&nbsp;&nbsp;
&nbsp;
Michael Nearing<BR> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
Executive Vice President</FONT></TD>
</TR>
</TABLE>
<BR>


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<TD WIDTH=50%><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2><B>        WILDE ACQUISITION CO., INC.</b><br>
 <BR>
<BR>BY: <u>/S/ Michael Nearing&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</u><BR>
&nbsp;&nbsp;&nbsp;
&nbsp;
Michael Nearing<BR> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
Executive Vice President</FONT></TD>
</TR>
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<TD WIDTH=50%><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2><B>        NORTHLAND CONTRACTING, INC.</b><br>
 <BR>
<BR>BY: <u>/S/ Michael Nearing&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</u><BR>
&nbsp;&nbsp;&nbsp;
&nbsp;
Michael Nearing<BR> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
Executive Vice President</FONT></TD>
</TR>
</TABLE>
<BR>




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<TD WIDTH=50%><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2><B>     WILDE OPTICAL SERVICE, INC. </b><br>
 <BR>
<BR>BY: <u>/S/ Michael Nearing&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</u><BR>
&nbsp;&nbsp;&nbsp;
&nbsp;
Michael Nearing<BR> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
Executive Vice President</FONT></TD>
</TR>
</TABLE>
<BR>




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<TD WIDTH=50%><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2><B>     MASTEC REAL ESTATE HOLDINGS, INC.</b><br>
 <BR>
<BR>BY: <u>/S/ Michael Nearing&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</u><BR>
&nbsp;&nbsp;&nbsp;
&nbsp;
Michael Nearing<BR> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
Executive Vice President</FONT></TD>
</TR>
</TABLE>
<BR>






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<TD WIDTH=50%><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2><B>    MASTEC OF TEXAS, INC.</b><br>
 <BR>
<BR>BY: <u>/S/ Michael Nearing&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</u><BR>
&nbsp;&nbsp;&nbsp;
&nbsp;
Michael Nearing<BR> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
Executive Vice President</FONT></TD>
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</TABLE>
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<TD WIDTH=50%><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2><B>   MASTEC CONTRACTING COMPANY, INC.</b><br>
 <BR>
<BR>BY: <u>/S/ Michael Nearing&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</u><BR>
&nbsp;&nbsp;&nbsp;
&nbsp;
Michael Nearing<BR> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
Executive Vice President</FONT></TD>
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<TD WIDTH=50%><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2><B>   MASTEC MINNESOTA, SW, LLC</b><br>
 <BR>
<BR>BY: <u>/S/ Michael Nearing&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</u><BR>
&nbsp;&nbsp;&nbsp;
&nbsp;
Michael Nearing<BR> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
Executive Vice President<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;of MasTec Services Company, Inc. <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Sole Member</FONT></TD>
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<TD WIDTH=50%><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2><B>   MASTEC SERVICES COMPANY, INC.</b><br>
 <BR>
<BR>BY: <u>/S/ Michael Nearing&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</u><BR>
&nbsp;&nbsp;&nbsp;
&nbsp;
Michael Nearing<BR> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
Executive Vice President</FONT></TD>
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<TD WIDTH=50%><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2><B>     MASTEC ASSET MANAGEMENT COMPANY, INC.</b><br>
 <BR>
<BR>BY: <u>/S/ Michael Nearing&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</u><BR>
&nbsp;&nbsp;&nbsp;
&nbsp;
Michael Nearing<BR> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
Executive Vice President</FONT></TD>
</TR>
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<TD WIDTH=50%><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2><B>     MASTEC TC, INC.</b><br>
 <BR>
<BR>BY: <u>/S/ Michael Nearing&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</u><BR>
&nbsp;&nbsp;&nbsp;
&nbsp;
Michael Nearing<BR> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
Executive Vice President</FONT></TD>
</TR>
</TABLE>
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<TD WIDTH=50%><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2><B>     MASTEC FC, INC.</b><br>
 <BR>
<BR>BY: <u>/S/ Michael Nearing&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</u><BR>
&nbsp;&nbsp;&nbsp;
&nbsp;
Michael Nearing<BR> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
Executive Vice President</FONT></TD>
</TR>
</TABLE>
<BR>




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<TD WIDTH=50%><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2><B>     STACKHOUSE REAL ESTATE HOLDINGS, INC.</b><br>
 <BR>
<BR>BY: <u>/S/ Michael Nearing&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</u><BR>
&nbsp;&nbsp;&nbsp;
&nbsp;
Michael Nearing<BR> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
Executive Vice President</FONT></TD>
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<P ALIGN=CENTER><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2><U>EXHIBIT A </U></FONT></P>


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<P ALIGN=RIGHT><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2>March 17, 2005 </FONT></P>

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<P ALIGN=LEFT><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2>Mr. Jan Farrell <br>Assistant General Counsel
<br>DirecTV <br>8085 So.Chester Street<br>Suite 300<br>Englewood,CO 80112 </FONT></P>



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<TD WIDTH=95%><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2>
<b>RE: &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;   DIRECTV, Inc. 2003 Home Services Provider Agreement dated March 1, 2003, as amended
by the First Amendment dated October 6, 2003 and the Second Amendment dated February 27,
 2004 (collectively, the&#147;Agreement&#148;) by and between MasTec North  America, Inc.
(&#147;MasTec North America&#148;) and DIRECTV, Inc. (&#147;DIRECTV&#148;).</b> </FONT></TD>
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<P ALIGN=LEFT><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2>Dear Mr. Farrell: </FONT></P>


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<TD WIDTH=95%><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;MasTec
North America hereby gives notice to DIRECTV that pursuant to that certain Revolving
Credit and Security Agreement between MasTec, Inc. (&#147;MTZ&#148;), MasTec North
America and certain other subsidiaries of MTZ and the lenders named therein for whom
Fleet Capital Corporation is administrative agent (the &#147;Agent&#148;), MTZ and MasTec
have granted to the Agent a first priority security interest in among other assets of
MasTec, all of MasTec&#146;s accounts receivable arising under the Agreement. </FONT>
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<TD WIDTH="50%"><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2>Sincerely<BR><BR>
<BR> /s/ Ismael Perera<BR>

<BR>Group President</font></TD>
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<P ALIGN="Left"><FONT FACE="Arial, Helvetica, Sans-Serif" SIZE=2>cc:      Mr. B. Campbell

</FONT></P>

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MasTec, Inc. 800 Douglas Road,12<SUP>th</SUP> Floor, Coral Gables, FL 33134
<br> 305.599.1800 fax 305.406.1960 <U>www.mastec.com</U> </FONT></P>





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