Exhibit 16.1 November 16, 1999 Office of the Chief Accountant Securities and Exchange Commission 450 Fifth Street, N.W. Washington, D.C. 20549 Re: ParkerVision, Inc. Dear Sir/Madam: We have read paragraph (a) of Item 4 included in the Form 8-K dated November 16, 1999 of ParkerVision, Inc. filed with the Securities and Exchange Commission and are in agreement with the statements contained therein. Yours very truly, /s/ Arthur Andersen, LLP