Most devices of this sort get an update lifecycle of a year or two, max, and then they're left as-is in the state they were in. Sometimes that's fine, sometimes it's not.

The GD77 charging base electronics is trash; a TP5100 is a trivial and cheap replacement.

Even with reasonable equipment, analyzing an HT antenna is hard because you are part of the system.

Setting up a small, low-profile iGate for APRS isn't hard and is great for the system APRS ecosystem. And it doesn't have to cost much!

Just a few years ago analyzing an antenna system required expensive and complicated tools, the NanoVNA changed that.

The AnyTone AT-D878UV took the ham radio DMR market by storm starting with the 868 and continues to be one of the most popular models.