SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, DC 20549

SCHEDULE 13D

(Rule 13d-101)

INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO RULE 13d-1(a)
AND AMENDMENTS THERETO FILED PURSUANT TO RULE 13d-2(a)

Under the Securities Exchange Act of 1934

(Amendment No. 3)*

If the filing person has previously filed a statement on Schedule 13G to report the acquisition that is the subject of this Schedule 13D, and is filing this schedule because of §§ 240.13d-1(e), 240.13d-1(f) or 240.13d-1(g), check the following box ¨.

Note: Schedules filed in paper format shall include a signed original and five copies of the schedule, including all exhibits. See § 240.13d-7 for other parties to whom copies are to be sent.

* The remainder of this cover page shall be filled out for a reporting person’s initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter disclosures provided in a prior cover page.

The information required on the remainder of this cover page shall not be deemed to be “filed” for the purpose of Section 18 of the Securities Exchange Act of 1934 (“Act”) or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).

This Amendment No. 3 to Statement of Beneficial Ownership on Schedule 13D (this “Amendment No. 3”) amends the Statement of Beneficial Ownership on Schedule 13D filed by the Reporting Persons on September 3, 2014, as amended (as amended, the “Schedule 13D” or this “Statement”), with respect to the Common Stock, par value $0.60 per share (the “Common Stock”), of RELM Wireless Corporation, a Nevada corporation (the “Company”). Capitalized terms used but not defined in this Amendment No. 3 shall have the meanings set forth in the Schedule 13D. Except as amended and supplemented by this Amendment No. 3, the Schedule 13D remains unchanged.

Item 3. Source and Amount of Funds or Other Consideration.

The total cost for purchasing the Common Stock reported as owned by Fundamental Global Partners, LP and Fundamental Global Partners Master Fund, LP in this Statement, including brokerage commissions, was approximately $7,203,187.

Item 5. Interest in Securities of the Issuer.

(a) The Reporting Persons beneficially own in the aggregate 1,645,231 shares of Common Stock, which represents approximately 12.0% of the Company’s outstanding shares of Common Stock.

Each of Fundamental Global Partners, LP and Fundamental Global Partners Master Fund, LP directly holds the number and percentage of shares of Common Stock disclosed as beneficially owned by it in the applicable table set forth on the cover page to this Statement. None of the other Reporting Persons directly hold any of the shares of Common Stock disclosed in this Statement.

In addition, CWA Asset Management Group, LLC (doing business as “Capital Wealth Advisors”) holds 33,950 shares of Common Stock for the accounts of individual investors, which represents approximately 0.2% of the Company’s outstanding shares of Common Stock. CWA Asset Management Group, LLC provides wealth management, estate planning and family office services to individual investors. The Investment Manager owns 50% of CWA Asset Management Group, LLC.

Each percentage ownership of shares of Common Stock set forth in this Statement is based on the 13,665,087 shares of Common Stock reported by the Company as outstanding as of October 27, 2014 in its Quarterly Report on Form 10-Q filed with the Securities and Exchange Commission on November 12, 2014.

(c) The transactions effected by each of the Reporting Persons in the Common Stock between December 15, 2014 and through February 23, 2015 are set forth on Schedule A to this Statement. Each of these transactions was effected through the open market.

SIGNATURE

After reasonable inquiry and to the best of our knowledge and belief, the undersigned certify that the information set forth in this Statement is true, complete and correct.

In accordance with Rule 13d-1(k)(1)(iii) under the Securities Exchange Act of 1934, as amended, the persons named below agree to the joint filing on behalf of each of them of this Statement on Schedule 13D with respect to the Common Stock of the Company.

Dated: February 26, 2015

Schedule A

Transactions by Fundamental Global Partners, LP and Fundamental Global Partners Master Fund, LP

in the Common Stock between December 15, 2014 and through February 23, 2015:

Fundamental Global Partners, LP:

Fundamental Global Partners Master Fund, LP: