Foley Hoag LLP
Attorneys at Law


October 19, 2004


YDI Wireless, Inc.
8000 Lee Highway
Falls Church, Virginia  22042


Ladies and Gentlemen:

     We are familiar with the Registration Statement on Form S-4, File No.
333-111110 (including any pre-effective and post-effective amendments thereto,
the "Registration Statement") filed by YDI Wireless, Inc., a Delaware
corporation (the "Company"), with the Securities and Exchange Commission (the
"Commission"), in connection with the registration under the Securities Act of
1933, as amended (the "Securities Act"), of 2,236,774 shares (the "Shares") of
its common stock, par value $0.01 per share, which is the maximum amount that
the Company anticipates it may issue pursuant to an Agreement and Plan of Merger
dated October 30, 2003 by and among the Company, Stun Acquisition Corporation, a
Delaware corporation and wholly owned subsidiary of the Company ("Merger Sub"),
and Phazar Corp., a Delaware corporation (as amended on April 1, 2004, June 2,
2004 and September 30, 2004, the "Merger Agreement").

     In arriving at the opinion expressed below, we have examined and relied on
the certificate of incorporation of the Company, as amended to date, the by-laws
of the Company, as amended to date, the records of meetings and consents of the
Board of Directors and stockholders of the Company provided to us by the
Company, the Registration Statement, the Merger Agreement and a certificate
executed by the Company, addressed to us and dated as of the date hereof,
containing certain factual and other representations.

     In addition, we have examined and relied on the originals or copies
certified or otherwise identified to our satisfaction of all such corporate
records of the Company and such other instruments and other certificates of
public officials, officers and representatives of the Company and such other
persons, and we have made such examination of law, as we have deemed appropriate
as a basis for the opinion expressed below.






YDI Wireless, Inc.
October 19, 2004
Page 2



     We express no opinion as to the laws of any state or jurisdiction other
than the General Corporation Law of the State of Delaware (including applicable
provisions of the Delaware Constitution and reported judicial decisions
interpreting such Law and such Constitution) and the federal laws of the United
States of America.

     Based upon and subject to the foregoing, we are of the opinion that the
Shares to be issued by the Company under the circumstances contemplated in the
Registration Statement are duly authorized and, when delivered pursuant to the
Merger Agreement, will be validly issued, fully paid and non-assessable.

     We consent to the filing of this opinion as an exhibit to the Registration
Statement and to the reference to us under the heading "Legal Matters" in the
proxy statement/prospectus forming part of the Registration Statement. In giving
such consent, we do not hereby admit that we are in the category of persons
whose consent is required under Section 7 of the Securities Act or the rules and
regulations of the Securities and Exchange Commission.

                                                        Very truly yours,

                                                        FOLEY HOAG LLP



                                                        By:  /s/ William R. Kolb
                                                             -------------------
                                                             a Partner