Re: Pi TNC to Motorola Radio

Willem Schreuder

On Thu, 30 Aug 2018, Kevin Reeve wrote:

Anyone using a Motorola CDM 750, 1550 etc, connected to their Pi TNC through the accessory port on the CDM 750 radio? The deviation is low even when turning up R7 the audio out pot on the Pi. The goal is a winlink gateway.
Make sure the radio is wideband, not narrow band.

The other trick is to feed the radio on Pin 1 (mic audio) as oppsed to Pin 3 (line audio). The audio on Pin 3 does not get emphasized, which causes problems with decoding.

Dr. Willem A. Schreuder, President, Principia Mathematica
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