Hey guys, I’m not sure if this is right place to post this. I do not have my repeater setup with AllStar yet but that’s the intention, and because so many have this system I figured you guys are the most current and involved folks to ask. I am going through preliminary checks just to make sure the repeater is functioning before I connect it to AllStar and my RPi - here is my issue:
I have a GR300 repeater with 2 GM300s, and the RICK acting as repeater interface - standard setup. I do not have a duplexer so have 2 separate antennas, one on my roof and one in the room, separated by about 40 ft or so in space. I have poured through repeater-builder and batlabs and I remember seeing a forum or page where someone was talking about this or a similar issue but I just can’t find it. I am not getting audio on the TX frequency.
I can key the repeater, and it seems to function normally, just no audio. However, if I turn the Repeater function off on the RICK, I can hear the audio on the TX radio speaker. So I’m fairly certain the RX radio is good.
Some more details:
The GM300s in my repeater are completely unmodified, serial M43GMC20D2AA - this means they are 8-channel, masked logic board, VHF radios. I have successfully programmed them and I am using test freqs RX: 146.400 and TX: 147.000 (standard repeater offset of -0.600) This IS within the range of the radios. The squelch type is set to TPL: 67.0 (standard CTCSS code of 67.0) I’ve confirmed my handhelds for testing are properly programmed to match this.
What am I missing? I have seen various pages/forums talking about flat audio vs preemphasized/deemphasized audio, but I’m not sure that’s my issue. Are there some jumpers on the radios I may need to change? Do I need to make any mods or change any programming parameters?