OpenGD77

CTCSS/DCS Filter on?
The pre-installed OpenGD77 version is certainly older - I would update, regardless of the problem.

I have 19.26 for GPS and CPS 1.2 here: https://www.sa0bux.se/Ham/RT3S/ Many thanks for the hint and the deployment! I was able to update, almost without any problems (afterwards, the RT3S only wanted to transmit on 150/450 MHz, but this could be changed again, by switching on + sidekey 1&2) and thu...

As recommended, in case I need to reinstall the official firmware, I would like to back up the original firmware, before installing OpenGD77 - but I can't find it anywhere. It is an "old" (5W version) RT3S GPS, with according to the info screen, S019.013 and V02.24. Neither firmware nor CPS, I could...

… I also wonder why people set a Rx CTCSS on their radios, unless you have a lot of local QRM. Juts becuase the repeater transmits CTCSS doesnt mean you have to set your radio to have Rx CTCSS … One reason to enable RX CTCSS may be, when the repeater is operating C4FM and FM on the same frequency. ...

You can search for your own postings:
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Here is what you are missing:
viewtopic.php?t=2364

73, Mike

The UV-5R cable does not work with RD5!

Sorry for the inconvenience. I did the programming and even changing the frequency within the band limits on two radios, the message comes when transmitting: "ERROR OUT OF BAND" can you help me, something is wrong. Regards Try Options, Radio Options, Band Limits and set it to CPS or OFF 73, DO3HB

Be careful, maybe MD-390 and MD-UV390 are not identical. For example, the MD-390 has a Double Conversion Superheterodyne receiver whereas the UV390 has the Direct Conversion receiver.

AA3RP wrote: ↑

Sat Aug 20, 2022 6:07 pm

Does anyone know what hardware the GD-88 is based on?

What CPU(s) / DMR / VFO / etc. and if it single or dual rx / tx hardware?

AA3RP

Here you can look inside this radio:

https://fccid.io/VO6DR-880UV/Internal-P ... 958935.pdf

hi all i have just got a gd77 its already got opengd77 installed i have tried to link the radio with the opengd77 cps and it doesnt register could it be because the firmware on the radio is 2 years old just to add im using a cable off the tytmd380 i bought it off radiodiddty and they assured me its...