CHIRP

Files attached, coorisponding to your requests in numbered list:
Data collected on Linux Ubuntu 22.04.2 LTS
CHIRP next-20230611

1. 1. Set the UV-82HP radio to the desired A and B channels and download to CHIRP. Save the new tab to file 1. Attached file: ChirpBugFile1_AandB_SetDownloaded.img set channels: A == 15 B == 4
2. Set the tab's A and B channels to something different and upload to UV-82HP. Save the tab that was uploaded to file 2. Attached file: ChirpBugFile2_AandB_ChangedUploaded.img Set Channels: A == 24 B == 9 After upload radio showing channels: A == 1 B == 1 Channels updated: A == 1 B == 1
3. 1. Download from UV-82HP to CHIRP. Save the new tab to file 3. Attached file: ChirpBugFile3_AandB_ChangedDownloaded.img Channels showing on radio: A == 1 B == 1

-Jeff K7HVJ

Jeff Breazile wrote in #note-2:

Files attached, coorisponding to your requests in numbered list:
Data collected on Linux Ubuntu 22.04.2 LTS
CHIRP next-20230611

1. 1. Set the UV-82HP radio to the desired A and B channels and download to CHIRP. Save the new tab to file 1. Attached file: ChirpBugFile1_AandB_SetDownloaded.img set channels: A == 15 B == 4
2. Set the tab's A and B channels to something different and upload to UV-82HP. Save the tab that was uploaded to file 2. Attached file: ChirpBugFile2_AandB_ChangedUploaded.img Set Channels: A == 24 B == 9 After upload radio showing channels: A == 1 B == 1 Channels updated: A == 1 B == 1
3. 1. Download from UV-82HP to CHIRP. Save the new tab to file 3. Attached file: ChirpBugFile3_AandB_ChangedDownloaded.img Channels showing on radio: A == 1 B == 1

-Jeff K7HVJ

Thank you for the files. Your "UV-82HP" appears to not provide the ability for CHIRP to 'read' which channels are selected or for CHIRP to be able to preset them. So this is a hardware issue, not a CHIRP issue.

For image 1, the memory location for channel A, 0x0e76, should have been set to 0x8F and the memory location for channel B, 0x0E76, should have been set to 0x84. After being read by CHIRP your radio has them both set to 0xFF.

For image 2, prior to upload, CHIRP has properly set the channel A and B memory locations to 0x98 and 0x89, respectively.

For image 3, the radio has rejected the uploaded values leaving the channel A and B memory locations as 0xFF.

Because the radio itself no longer provides the data required to determine which channels have been selected, both image 1 and image 3 are identical.

Also note that your radio doesn't appear to be a genuine UV-82HP from Baofeng Tech (the radio dealer in the USA). My recently acquired UV-82HP (October 2022) with the latest firmware that I know about, N82-33/US2S35, still provides the necessary data bytes and support needed for CHIRP to read and set the selected channel numbers.

Jim KC9HI