A site dedicated to pc data mode interfaces, and echolink controllers

PC echolink, and data mode Interfaces are specific to ham radio, covering the isolated interface between radio's, and pc's. Used for data modes like psk31, sstv, etc with the OPTO-IF kit, the OPTO-IF MKII, or the CATOPTO MKIII. The Echolink  controller depicted here is a microprocessor based isolated interface for Echolink voip rf linking .

See the Products pages for information.