EXHIBIT 99.1 EMS TECHNOLOGIES, INC. CERTIFICATION OF CHIEF EXECUTIVE OFFICER AND CHIEF FINANCIAL OFFICER Each of the undersigned Chief Executive Officer and Chief Financial Officer of EMS Technologies, Inc. hereby individually certifies that the Quarterly Report on Form 10-Q of the Company for the quarter ended March 29, 2003, to which this Certification is attached, fully complies with the requirements of Section 15(d) of the Securities Exchange Act of 1934, as amended, and that the information contained in such Report fairly presents, in all material respects, the financial condition and results of operations of EMS Technologies, Inc. In witness whereof, each of the undersigned has executed and delivered this Certification on this 13th day of May, 2003. /s/ Alfred G. Hansen /s/ Don T. Scartz - ------------------------------ ----------------------------- Alfred G. Hansen Don T. Scartz Chief Executive Officer Chief Financial Officer EMS Technologies, Inc. EMS Technologies, Inc.