[chirp_devel] Baofeng UV-3R

[Dan Smith]

> Glad to hear you've added some preliminary support for this.
> I'm just curious what did this radio look like from a
> protocol perspective?
>
> Are there any similarities emerging for these chinese radios?

Yes. Before I got the programming cable from the person I borrowed it 
from, I put it on the service monitor to check it out. I knew right then 
that it wasn't the Yaesu guts and that they only attempted to mimic the 
external appearance. I have a little more on that, if you're interested.

The programming mechanism and memory format are very similar to the 
Wouxun, Puxing, and the other radios that appear to have come from a 
stolen commercial Kenwood radio. You can see from the patch that I just 
added it as a variant of the Wouxun, using the same core upload/download 
routines.

The memory format is strange and I honestly can say I don't really 
understand it. The strangeness may be indicative of a firmware author 
that didn't really know what he was doing, but rather was just tasked 
with porting some of the stolen firmware to their radio. It seems to 
store the memory channels twice in memory, once at the beginning and 
once at the end. It stores the TX frequency separate from the RX 
frequency (like the Wouxun) but also stores the offset (unlike the 
Wouxun) and uses that instead of the TX frequency when you hit PTT.

Storage of the tone and DCS code information is simpler and more 
straightforward than the Puxing and Wouxun (which are both nearly 
identical but just different enough to be annoying).

How's that?

-- 
Dan Smith
www.danplanet.com
KK7DS