OpenGD77

If you have a non-GPS RT3S/UV380 I presume there will an empty set of pads on the front display PCB, where the official GPS module is located The official module is usual a JumpStar device, but I do not have the pinout. You will need to determine which pad is the Gnd, Power (3.3V), data and the ant...

For anyone who wants to fit a GPS inside their radio These modules are very small and should fit in the RT3S and GD77 etc https://www.aliexpress.com/item/32764345698.html (The option called "GP-02" NOT "GP-02 Kit") Roger, please, can you show me how do you connect the GP-02 module in the radio? (co...

The firmware has no control over the GPS acquisition time, its mainly dependant upon the current GPS satellite constellation position, and weather e.g. cloud cover and also position of the radio The internal GPS in the RT3S is well documented to be very insensitive hence why people have to modify t...

Finally i was installed the last version of the firmware on my RT3S, but now the GPS stays always "Acquiring" and never achieve position. Finally the GPS has obtained position after 35 minutes acquiring. With the previous version of firmware it never took more than 3 minutes... Seems to be somethin...

Trying to install latest CPS version, the installer asks for a password, where i can find it? https://www.opengd77.com/viewtopic.php?f=12&t=3309 Many thanks to all answer me... I had it right in the post above... I didn't see it, I'm stupid... :oops: Finally i was installed the last version of the ...

Hello,

Trying to install latest CPS version, the installer asks for a password, where i can find it?

Many thanks,

73 de Abraham