First post. I just got a 148 GTL, in great shape, from a trucker freind of mine.
When you key the mic, it sqeals, loudly. The squeal is trasmitted with a strong signal. and also seems come from the board. But, if the radio speaker is disconnected, it does not squeal. All lights and the meter work, and it does not squeal on PA. Where should I look? It reacts to the mic gain, with several stock mics.
Thanks.
When you key the mic, it sqeals, loudly. The squeal is trasmitted with a strong signal. and also seems come from the board. But, if the radio speaker is disconnected, it does not squeal. All lights and the meter work, and it does not squeal on PA. Where should I look? It reacts to the mic gain, with several stock mics.
Thanks.