Disclaimer: This page is intended to support Radioddity GD-77 users.

OpenGD-77 #

I’ll be dropping support for the original GD-77 Firmware and instead will target my codeplugs for use with the most excellent OpenGD-77 Software, developed by Roger Clark (and many, many others!). It supports more channels per zone, and it’s actually aimed at the amateur radio market. One example is that you only need 1 channel per repeater. You can switch Talk groups & Slots on-the-fly. It also has a hotspot mode. Great stuff, give it a go.

For direct downloads, the CPS and instructions – please see the OpenGD77 forum here.

It works like a charm. Make sure to install Roger’s modified CPS as well. You can also flash the OpenGD-77 from said utility.

I’ve made a BE Codeplug for the OpenGD-77. You can download the codeplug here. (Version 2.3 – 9 feb 2023 – Big update / Cleanup. Talker Alias enabled on all DMR channels.)

Don’t forget to change the Intro Screen (callsign on first line, name on second line. Begin the second line with a space) and the General settings (DMR ID and callsign). The intro screen data is used for Talker Alias (enabled on all DMR channels).

OpenGD-77 Community Tools #

There’s a very handy tool to be found here: the Contact Manager by Colin Durbridge. It allows you to edit your codeplugs via CSV sheets.. Way faster / easier if you know what you’re doing…