<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2017-06-15</periodOfReport>

    <issuer>
        <issuerCik>0000002186</issuerCik>
        <issuerName>RELM WIRELESS CORP</issuerName>
        <issuerTradingSymbol>RWC</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001619991</rptOwnerCik>
            <rptOwnerName>Cerminara Kyle</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O FUNDAMENTAL GLOBAL INVESTORS, LLC</rptOwnerStreet1>
            <rptOwnerStreet2>4201 CONGRESS STREET, SUITE 140</rptOwnerStreet2>
            <rptOwnerCity>CHARLOTTE</rptOwnerCity>
            <rptOwnerState>NC</rptOwnerState>
            <rptOwnerZipCode>28209</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>true</isDirector>
            <isOfficer>false</isOfficer>
            <isTenPercentOwner>true</isTenPercentOwner>
            <isOther>false</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock, par value $0.60 per share</value>
            </securityTitle>
            <transactionDate>
                <value>2017-06-15</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>false</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>5479</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>5479</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock, par value $0.60 per share</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>2328144</value>
                    <footnoteId id="F2"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>Fundamental Global</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock, par value $0.60 per share</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>1147087</value>
                    <footnoteId id="F3"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>Ballantyne Strong, Inc.</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Represents a grant of restricted stock units under the RELM Wireless Corporation 2017 Incentive Compensation Plan.  Each restricted stock unit represents a contingent right to receive one share of the Issuer's Common Stock.  The restricted stock units vest in full 12 months after the grant date, subject to the Reporting Person's continued service as a director of the Issuer through such date.</footnote>
        <footnote id="F2">Held by the Fundamental Global entities. Due to his positions with Fundamental Global Investors, LLC and other Fundamental Global entities, Mr. Cerminara may be deemed to be a beneficial owner of Common Stock held by Fundamental Global. Mr. Cerminara disclaims any beneficial ownership of the shares referenced to herein except to the extent of his pecuniary interest therein.</footnote>
        <footnote id="F3">Held by Ballantyne Strong, Inc. (&quot;BTN&quot;). Due to his positions with BTN, Mr. Cerminara may be deemed to be a beneficial owner of Common Stock held by BTN.  Mr. Cerminara disclaims any beneficial ownership of the shares referenced to herein except to the extent of his pecuniary interest therein.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ D. Kyle Cerminara</signatureName>
        <signatureDate>2017-06-16</signatureDate>
    </ownerSignature>
</ownershipDocument>
