Clete, No, AN/TRC-75 and AN/ARC-58 are related. In a message dated 5/14/2006 11:26:22 AM Central Daylight Time, whitaker at pa.net writes: > de WB2CPN > > Does the TRC-75 relate to the ARC-65? > > 73 Clete Robert Downs - Houston <http://www.wa5cab.com> (Web Store) MVPA 9480 <wa5cab at cs.com> (Primary email) <wa5cab at houston.rr.com> (Backup email)