OpenGD77

Hello. I have the Retevis RT3S GPS. I'm trying to configure it for APRS but I can't seem to. I have it with OpenGD77. The GPS works fine. I'm on the aprs.fi website but I can't get it to work. I modified the codeplug so that when I access a specific VHF repeater, it outputs for APRS, sending the carrier (beacon), but I can't get APRS to actually work. On the Brandmister website, I configured it for APRS, but nothing. Maybe I'm not following the APRS codeplug steps correctly. I've read, looked... but I can't get it to work. I've read the OpenGD77 instructions, but I can't get it to work. I'm clumsy. Thank you for your help.

For APRS via DMR you need to enable TA TX for the channel

https://github.com/LibreDMR/OpenGD77_Us ... #ta-tx-tsx

SA0BUX wrote: ↑

Tue May 27, 2025 4:13 pm

For APRS via DMR you need to enable TA TX for the channel

https://github.com/LibreDMR/OpenGD77_Us ... #ta-tx-tsx

You also need to select the correct options in the Brand Meister Selfcare portal, including the radio type and enabling GPS.
Information about these setting was posted on this site a long time ago


I just googled it and found this for you

viewtopic.php?t=2789

VK3KYY wrote: ↑

Tue May 27, 2025 9:00 pm

SA0BUX wrote: ↑

Tue May 27, 2025 4:13 pm

For APRS via DMR you need to enable TA TX for the channel

https://github.com/LibreDMR/OpenGD77_Us ... #ta-tx-tsx

You also need to select the correct options in the Brand Meister Selfcare portal, including the radio type and enabling GPS.
Information about these setting was posted on this site a long time ago


I just googled it and found this for you

viewtopic.php?t=2789

I've already read this, but I can't get it to work. I think I've got it all mixed up. I'll try again from scratch. Thanks.

SA0BUX wrote: ↑

Tue May 27, 2025 4:13 pm

For APRS via DMR you need to enable TA TX for the channel

https://github.com/LibreDMR/OpenGD77_Us ... #ta-tx-tsx

I've already read some of this, but I haven't been able to get it to work. I'm going to try again from scratch, following the steps again. Thanks.

Looked my settings in brandmeister selfcare for "TA TX"

I have mine set to APRS Interval = "Off"
Other settings are the same

I'm going to try again from scratch, following the steps again. Thanks.

SA0BUX wrote: ↑

Thu May 29, 2025 6:41 am

Looked my settings in brandmeister selfcare for "TA TX"

Capture.JPG

Here's how it is. I just changed the APRS Interval to Off, which I had at 180, just to see. I'm still testing. The fact is that yesterday it worked briefly and it appears on the APRS website, but it was temporary, and I'm not aware of having changed anything. I'll see, I'm still working on it.

VK3KYY wrote: ↑

Thu May 29, 2025 7:28 am

I have mine set to APRS Interval = "Off"
Other settings are the same

Not sure what APRS interval controls, tried google searching.
But it may be for some specific terminals only or rate limiting.

Tried with off now via my hotspot , RT3S has a location in "Radio Info" and "TA TX TS1 = APRS"

https://aprs.fi/info/SA0BUX-7