[chirp_users] Connectivity issues with Puxing PX-A6

dmdfacp at gmail.com dmdfacp at gmail.com
Tue Feb 9 13:55:02 PST 2016

Sdras voo eet syah !! Kack du lah ??Dude, your English puts many North Americans to SHAME !!!

I'm a student of your language, but speak French, some Greek, Spanish, and Arabic. You are a beacon of intelligence in a confusing world of miscommunication (no pun intended ).

Tampa, Florida

Sent from my iPhone 

On Feb 9, 2016, at 4:47 PM, Kirill Elagin <kirelagin at gmail.com> wrote:


I’ve got a Puxing PX-A6 and a cheap USB cable from China. Now I’m trying to make this setup work, but I’ve faced some issues, so I’m looking for help.

The cable seems to have a PL-2303 inside, at least that’s what its USB IDs tell and it got picked up by pl2303 kernel module. Now, it _almost_ works. I use Puxing PX-2R driver with CHIRP. When I tell CHIRP to download data, it fails with `Failed to communicate with radio: Radio is not responding`. If I immediately try again, then it downloads successfully.

I also noticed that when I connect the radio to my laptop, it starts transmitting (as in transmitting radio signal), likely because the cable plugs into the headset port. But it stops as soon as I open the tty using `socat` (`socat -x /dev/ttyUSB0 -`). When I exit `socat` it starts transmitting again after around 4 seconds. I believe this 4-second interval is the key to CHIRP succeeding, as it always succeeds when I hit “download” while the radio is not transmitting either immediately after the first attempt or immediately after exiting `socat`.

I also tried setting up a pty using, again, `socat` to sniff the protocol. In this case the radio stops transmitting as soon as `socat` is started and, of course, using the pty, CHIRP successfully downloads channels from the first try.

Well, my ultimate goal is to make their own programming software work (at least once, as I need to adjust some settings and after that I’ll happily stick to CHIRP), but it doesn’t. I thought, that understanding of what’s going on with CHIRP might help me figure out what to do next, so any ideas are welcome.

Кирилл Елагин
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