Bug #10684
openUV-5R8W Tx Power malfunction
Added by David Nunez over 1 year ago. Updated over 1 year ago.
0%
Description
I have two baofeng UV-5R8W tri-power 1-4-8 watt units that after being programmed with Chirp have stopped working properly.
When I bought them I could see that the three wattages worked correctly and there was a real difference in output power.
After programming the walkie for the first time using the BF-F8HP model the LOW and MID modes work at the same power and the HIGH mode works at a lower power than the other two. These output powers do not correspond to those of the device when received.
If I change the power mode in Chirp and then burn the image, the mode changes in display and menu, but the output power is not correct and does not correspond to what the walkie had when it was received.
Attached image downloaded from the walkie before the first programming and debug file.
Files
Baofeng original.img (6.5 KB) Baofeng original.img | Original settings downloaded using BF-F8HP | David Nunez, 06/27/2023 04:14 PM | |
TX-power test.img (6.52 KB) TX-power test.img | David Nunez, 07/27/2023 01:42 AM |
Updated by David Nunez over 1 year ago
Also add that the FM radio works but can not be programmed from Chirp, the option is blank and the upper and lower limits in both VHF and UHF can not be modified, neither to increase nor to decrease.
Updated by David Nunez over 1 year ago
I uploaded the original using this guide and now is working ok.
Updated by David Nunez over 1 year ago
Tested several times and if I want to maintain the correct TX levels I have to put "UseAtOwnRisk" everytime I put the img on the walkie. Tested with two diferent equipment.
Updated by Chuck Murcko over 1 year ago
David Nunez wrote in #note-3:
Tested several times and if I want to maintain the correct TX levels I have to put "UseAtOwnRisk" everytime I put the img on the walkie. Tested with two diferent equipment.
If you also clear the 5 spaces in the Range Override Parameter cell after "Default" you can then paste "UseAtOwnRisk" into the cell. Thanks for pointing me to the workaround.
Updated by Chuck Murcko over 1 year ago
Updated by Chuck Murcko over 1 year ago
Thanks for pointing me to the workaround.
Updated by Chuck Murcko over 1 year ago
It'd be nice to have edit and delete capability on my own posts. :)
Updated by Jim Unroe over 1 year ago
I just rechecked CHIRP using my original BF-F8HP radio and the H/M/L settings are correct.
Would one (or more) of you manually program your radio with 3 channels, each at a different TX power level. Download from the radio to CHIRP and save the new tab to a CHIRP image file and attach it here. Mention in the notes which channels were programmed an what each of their TX power levels was programmed at.
Thanks,
Jim KC9HI
Updated by David Nunez over 1 year ago
Jim Unroe wrote in #note-9:
I just rechecked CHIRP using my original BF-F8HP radio and the H/M/L settings are correct.
Would one (or more) of you manually program your radio with 3 channels, each at a different TX power level. Download from the radio to CHIRP and save the new tab to a CHIRP image file and attach it here. Mention in the notes which channels were programmed an what each of their TX power levels was programmed at.
Thanks,
Jim KC9HI
give me a couple of days and i will upload it.
Updated by David Nunez over 1 year ago
- File TX-power test.img TX-power test.img added
Jim Unroe wrote in #note-9:
I just rechecked CHIRP using my original BF-F8HP radio and the H/M/L settings are correct.
Would one (or more) of you manually program your radio with 3 channels, each at a different TX power level. Download from the radio to CHIRP and save the new tab to a CHIRP image file and attach it here. Mention in the notes which channels were programmed an what each of their TX power levels was programmed at.
Thanks,
Jim KC9HI
Hi Jim,
Sorry for the waiting. I uploaded an img with the memorys 100-101-102 added manually and downloaded with chirp. I hope it helps you.
Updated by Jim Unroe over 1 year ago
David Nunez wrote in #note-11:
Jim Unroe wrote in #note-9:
I just rechecked CHIRP using my original BF-F8HP radio and the H/M/L settings are correct.
Would one (or more) of you manually program your radio with 3 channels, each at a different TX power level. Download from the radio to CHIRP and save the new tab to a CHIRP image file and attach it here. Mention in the notes which channels were programmed an what each of their TX power levels was programmed at.
Thanks,
Jim KC9HIHi Jim,
Sorry for the waiting. I uploaded an img with the memorys 100-101-102 added manually and downloaded with chirp. I hope it helps you.
You didn't mention which power level was programmed to each channel. According to how Baofeng tri-power radios have been for the last 10+ years they are...
100 = 0x00 HIGH
101 = 0x01 MID
102 = 0x02 LOW
If I program channels 103, 104 and 105 using CHIRP to match channels 100, 101 and 102, your manually programmed channels and the CHIRP channels are identical.
Please explain the problem again because I not able to see one yet?
Updated by David Nunez over 1 year ago
Hi Jim, I guess the language difference doesn't help us. The problem that occurs is that when I program the walkie with chirp, even if it is only to download the original image and upload it again without modifying it, the equipment stops emitting in the powers that you have selected on the walkie's screen. In my case, the high selection emits below 1W theoretical and Mid/Low emits over 5W. This is only fixed when you re-upload an image using the UseAtOwnRisk option. I hope I have explained myself better and I apologize for the lack of information.
Updated by Jim Unroe over 1 year ago
David Nunez wrote in #note-13:
Hi Jim, I guess the language difference doesn't help us. The problem that occurs is that when I program the walkie with chirp, even if it is only to download the original image and upload it again without modifying it, the equipment stops emitting in the powers that you have selected on the walkie's screen. In my case, the high selection emits below 1W theoretical and Mid/Low emits over 5W. This is only fixed when you re-upload an image using the UseAtOwnRisk option. I hope I have explained myself better and I apologize for the lack of information.
You are not uploading the same image as the "original image". The two images that you have attached to this issue are not from the same radio. They have completely different Aux memory areas. If you are using the latest CHIRP-next (which you must not be), the Aux memory area would not be uploaded and therefor be absolutely the same in both images (preventing this problem from happening). There are other telltale signs that these images were not from the same radio. You must be using the UseAtOwnRisk option to load an incompatible image from another radio or using an older version of CHIRP that does not protect from the user uploading a foreign image into the radio. This is what is causing the 'breakage'. Not CHIRP.
You must only upload the images back to the radio which are known to be from the radio in the first place. You must not share images between these latest Baofeng radios.
- Use the UseAtOwnRisk option to put the original image back into the radio.
- Confirm that the power levels are working.
- Once confirmed download from the radio.
- Load the 'bad' image that has your channels into CHIRP to create a 2nd tab.
- Copy-and-paste the channels from tab 2 to tab 1.
- Upload tab 1 back into your radio.
Updated by David Nunez over 1 year ago
Hi Jim
I'm sorry but I tried the tests with the other radio that gives me the same problems, it's not the one in the original image.
Yes, I used chirp next before downloading because I wanted to modify the radio parameters.
I can record the channels as you ask me in the original radio but I warn you that I already use "UseAtOwnRisk" in this one also with the latest version of chirp.
Tomorrow I will attach the file.
Updated by David Nunez over 1 year ago
At no time did the program notify me that the image is not from that device, if you try to upload another's, it will notify me... and of course I have not done so in this image sent.
On the first team I did use one that you put in a post to repair problems with the bf8hp, because it seemed that it was the solution in other posts. You can ask the other affected people what they have done, to find out more about the problem.
Updated by Jim Unroe over 1 year ago
David Nunez wrote in #note-15:
Hi Jim
I'm sorry but I tried the tests with the other radio that gives me the same problems, it's not the one in the original image.
Yes, I used chirp next before downloading because I wanted to modify the radio parameters.
I can record the channels as you ask me in the original radio but I warn you that I already use "UseAtOwnRisk" in this one also with the latest version of chirp.
Tomorrow I will attach the file.
We have to stick with 1 radio to do the testing. If you only have the "original" file for 1 radio, do the testing with that radio only. You should be able to upload using "UseAtOwnRisk" option to radio it belongs to. Then restart CHIRP and download from radio. You should see Settings tabs and power levels should be correct. Add 3 channels with HIGH/MID/LOW power levels and upload to radio. Power levels should still be good. If not, download and attach image for new tab to issue.