NFM Tx/Rx Okay - DMR No Audio
Posted: Wed Feb 14, 2024 9:35 pm
Hello OpenGD77 Community!
I'm asking for some direction in solving a tricky little problem I'm having with a new to me MD-9600. The radio was working fine under the original firmware from TYT, guy demonstrated it working before I bought it from him. Essentially I can Rx/Tx fine in narrow FM on the radio. Good strong audio, no issues. However, in DMR I get no audio??
Here are some observations:
- Firmware update succeeded, actually many times. Its an older GPS v1.2 Radio confirmed on the circuit board.
- Firmware loader process shows "+DMR" so it seems the donor file was clean too.
- RadioID / Callsign Loaded no problem, and OpenGD77 CPS communicates easily with the radio.
- I've Tried V1, V2 and V3 firmware all with similar results. Actually V1 is the only firmware which allows any audio at all.
- Audio on narrow FM is strong, and signal reports are good. So this leads me to believe the radio hardware is functional.
- Signal meter also moving around in DMR and jumps on signal input from the repeaters I have programed in
- The speaker even does the tell-tail pop occasionally at the end of a transmission, although I can hear no audio from the transmission
- I did mess with the volume too
Any ideas on what could be causing this behavior? I will admit I am new to programing DMR codeplugs but have gone over and over examples in the community here and believe I have the TG, TS, Color, Frequencies all right, but this could be the issue. My other thought is that somehow my copy of the donor firmware for the CODEC was corrupt?
Reaching out for any ideas, hit me up with any suggestions to try or ideas if someone has seen this before.
Best Regards,
Ryan
N7VXQ
I'm asking for some direction in solving a tricky little problem I'm having with a new to me MD-9600. The radio was working fine under the original firmware from TYT, guy demonstrated it working before I bought it from him. Essentially I can Rx/Tx fine in narrow FM on the radio. Good strong audio, no issues. However, in DMR I get no audio??
Here are some observations:
- Firmware update succeeded, actually many times. Its an older GPS v1.2 Radio confirmed on the circuit board.
- Firmware loader process shows "+DMR" so it seems the donor file was clean too.
- RadioID / Callsign Loaded no problem, and OpenGD77 CPS communicates easily with the radio.
- I've Tried V1, V2 and V3 firmware all with similar results. Actually V1 is the only firmware which allows any audio at all.
- Audio on narrow FM is strong, and signal reports are good. So this leads me to believe the radio hardware is functional.
- Signal meter also moving around in DMR and jumps on signal input from the repeaters I have programed in
- The speaker even does the tell-tail pop occasionally at the end of a transmission, although I can hear no audio from the transmission
- I did mess with the volume too
Any ideas on what could be causing this behavior? I will admit I am new to programing DMR codeplugs but have gone over and over examples in the community here and believe I have the TG, TS, Color, Frequencies all right, but this could be the issue. My other thought is that somehow my copy of the donor firmware for the CODEC was corrupt?
Reaching out for any ideas, hit me up with any suggestions to try or ideas if someone has seen this before.
Best Regards,
Ryan
N7VXQ