OK, I just got my 900 machine back up and running again this morning. For those who don't remember, this is a MaxTrac Receiver / Com Spec TP-3200 controller / GTX exciter / Motorola STF2520A paging PA arrangement.
Anyhow - the machine had no audio output at all. nada, zilch. only a dead key. I changed out the GTX and this restored the transmit audio - I can now hear voice audio and the ID-er being passed by the repeater. However, one problem remains: it is still not encoding PL tone. (So if you are in the area and plan on using the machine, be sure to use CSQ receive for now.) I have checked and double-checked the panel programming and output - it is encoding the tone. What I wonder is if the audio circuit in the GTX is scrubbing off the tone coming from the panel? If so, I can reprogram the GTX for tone encode on TX, but I'd prefer to use the panel's tone. (Currently, the GTX is programmed for CSQ transmit.) Also, I'm using Pin 2 (Ext MIC) for the audio input. should I be using Pin 11 (Flat RX audio) instead? Is this an issue that was previously referred to on the list - one regarding a factory add-on module/fix?? Mark - N9WYS
