<SEC-DOCUMENT>0001250853-18-000050.txt : 20180323
<SEC-HEADER>0001250853-18-000050.hdr.sgml : 20180323
<ACCEPTANCE-DATETIME>20180323210019
ACCESSION NUMBER:		0001250853-18-000050
CONFORMED SUBMISSION TYPE:	4/A
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20180320
FILED AS OF DATE:		20180323
DATE AS OF CHANGE:		20180323

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Reynolds William
		CENTRAL INDEX KEY:			0001377473

	FILING VALUES:
		FORM TYPE:		4/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-13301
		FILM NUMBER:		18711475

	MAIL ADDRESS:	
		STREET 1:		7610 MIRAMAR ROAD, BLDG. 6000
		CITY:			SAN DIEGO
		STATE:			CA
		ZIP:			92126

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			R F INDUSTRIES LTD
		CENTRAL INDEX KEY:			0000740664
		STANDARD INDUSTRIAL CLASSIFICATION:	ELECTRONIC CONNECTORS [3678]
		IRS NUMBER:				880168936
		STATE OF INCORPORATION:			NV
		FISCAL YEAR END:			1031

	BUSINESS ADDRESS:	
		STREET 1:		7610 MIRAMAR RD
		STREET 2:		BLDG 6000
		CITY:			SAN DIEGO
		STATE:			CA
		ZIP:			92126-2313
		BUSINESS PHONE:		858-549-6340

	MAIL ADDRESS:	
		STREET 1:		7620 MIRAMAR RD #4100
		STREET 2:		7620 MIRAMAR RD #4100
		CITY:			SAN DIEGO
		STATE:			CA
		ZIP:			92126-4202

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	CELLTRONICS INC
		DATE OF NAME CHANGE:	19910204
</SEC-HEADER>
<DOCUMENT>
<TYPE>4/A
<SEQUENCE>1
<FILENAME>primary_doc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4/A</documentType>

    <periodOfReport>2018-03-20</periodOfReport>

    <dateOfOriginalSubmission>2018-03-22</dateOfOriginalSubmission>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000740664</issuerCik>
        <issuerName>R F INDUSTRIES LTD</issuerName>
        <issuerTradingSymbol>RFIL</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001377473</rptOwnerCik>
            <rptOwnerName>Reynolds William</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>7610 MIRAMAR ROAD, BLDG. 6000</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>SAN DIEGO</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>92126</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2018-03-20</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>10500</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>4.58</value>
                    <footnoteId id="F2"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>50200</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">On March 22, 2018, the Reporting Person filed a Form 4 mistakenly reporting that 10,500 shares of common stock had been acquired at a weighted average price of $4.58, rather than disposed of in a sale. This amended Form 4 correctly reports that the 10,500 shares of common stock were sold/disposed of at the weighted average price of $4.58.</footnote>
        <footnote id="F2">The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $4.45 to $4.65, inclusive. The reporting person undertakes to provide to RF Industries Ltd, any security holder of RF Industries Ltd, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in footnote (2) to this Form 4.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Tony D. Shin, Attorney in Fact</signatureName>
        <signatureDate>2018-03-23</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
