CHIRP

As you have discovered, being able to read and write from a particular vendor/model selection does not always mean that the selected driver module is appropriate for a particular radio. Does the OEM software for the BF888 work with your radio? My guess would be no, as well.

This radio looks very close to a Retevis RT22 (not the similarity of the name). I would expect better luck with that being a closer match. The "magic" string that initiates cloning is not the same to so it isn't worth trying because it won't work.

I have hacked up a test driver module just to see if you can read the radio. Choose Vendor: Baofeng/Model: GT-22. If successful, attach the downloaded CHIRP Radio Images (*.img) file to this issue so further research can be done.

Instructions for using the test driver module.

1. save the test driver module to a convenient location (do not right-click to download)
2. open CHIRP
3. click Help and then enable Enable Developer Functions
4. click File -> Load Module and then locate and load the test driver module saved in step 1

CHIRP should now have a red background to indicate it is running with an external driver module loaded. It does not permanently change you CHIRP installation in any way. I you close CHIRP, you will have to load the test module again to use it in the future.

Now try downloading from your radio. If successful, attach the "image" file. If unsuccessful, describe the error and include the debug.log file. The test driver module will download only. It has no upload or settings capability.

Jim KC9HI

Thank you, Jim.
Followed your instructions, downloaded the image successfully.
Unfortunately, unlike with the BF-888 module, only memory locations 4, 8, 12 and 16 are loaded and no settings available, see attached screenshot. Both image files are attached as well.
As I mentioned earlier, my problem is that the original software does not write to the radio properly. CHIRP with BF-888 module can read and write the modified data back, just that GT-22 has less features, as compared to GT-888.
Wladyslaw

As suggested, I have tried the original software for Baofeng BF-88E (PMR version of BF-888). (I was surprised that together with their V12 software they also bundle CHIRP v.20180519) It also reads and writes GT-22 successfully.
GT-22 just lacks the GT-888 options like wide/narrow, scan, side key etc.

Have you tried the Vendor: Retevis/Model: H777 Plus selection? That is the radio with the memory view that I remembered seeing before.

Jim

Here is the image done with the Retevis H777 option.
GT-22 has no side key, no scan and no alarm functionality.
Wladyslaw

Wladyslaw Buchkowski wrote:

Here is the image done with the Retevis H777 option.
GT-22 has no side key, no scan and no alarm functionality.
Wladyslaw

Thank you. Is this what you are looking for?

Jim KC9HI