You were right, I updated the CPS and everything is working now.
One unrelated question: Is there any recommended power settings for hotspot use? I am referring to the actual power being closer to the power readings? Thanks.
Experimental Baofeng RD-5R version
Re: Experimental Baofeng RD-5R version
One unrelated question: Is there any recommended power settings for hotspot use? I am referring to the actual power being closer to the power readings? Thanks.
Re: Experimental Baofeng RD-5R version
Re: Hotspot
A lot of people have reported the radio is not stable in hotspot mode, because of RF injection into the USB cable and the RPi etc
If you have an external antenna, you should connect it when running any of these radios in hotspot mode, as even the GD-77 can cause RF injection into the USB cable unless you use an external antenna.
I don't know if anyone managed to get the RD-5R to work as a reliable hotspot. The hardware may not be good enough for this, as the RF stages in the radio are not well filtered, and it generates way more spurious RF than the GD-77 or the Baofeng DM-1801.
There is nothing that can be done in the firmware to fix this. Its a hardware problem, on what is quite cheap low quality hardware
A lot of people have reported the radio is not stable in hotspot mode, because of RF injection into the USB cable and the RPi etc
If you have an external antenna, you should connect it when running any of these radios in hotspot mode, as even the GD-77 can cause RF injection into the USB cable unless you use an external antenna.
I don't know if anyone managed to get the RD-5R to work as a reliable hotspot. The hardware may not be good enough for this, as the RF stages in the radio are not well filtered, and it generates way more spurious RF than the GD-77 or the Baofeng DM-1801.
There is nothing that can be done in the firmware to fix this. Its a hardware problem, on what is quite cheap low quality hardware
Error CPS "Device not found"
Greetings ! My first post here... I own a RD-5R.
I flashed today the OpenGD77 in RD-5R.
Guys! If you get a error for CPS "Device not found" plug in your upload/flash/data cable in the back USB-hole of your PC
Old contacts are gone, must all one by one rebuild and link to TG's, zones or RX-group-lists... A lot.
The hamdigital/radioid import method did not work for me.
A lot of missing menues in the CPS.
In radio analog-mode all channels started with squelch 0 (zero) - loud noise till i increase the squelch, won't be saved at all
Ok, was my first day with OpenGD77 on RD-5r...
I flashed today the OpenGD77 in RD-5R.
Guys! If you get a error for CPS "Device not found" plug in your upload/flash/data cable in the back USB-hole of your PC
Old contacts are gone, must all one by one rebuild and link to TG's, zones or RX-group-lists... A lot.
The hamdigital/radioid import method did not work for me.
A lot of missing menues in the CPS.
In radio analog-mode all channels started with squelch 0 (zero) - loud noise till i increase the squelch, won't be saved at all
Ok, was my first day with OpenGD77 on RD-5r...
Last edited by YO3VTH on Sat Dec 23, 2023 9:41 pm, edited 1 time in total.
WARNING: POWER OUPUT EXCESSIVELY HIGH IN LATEST FW
If you are using OpenRD5R beware of the power output setting because it is absolutely deceiving and you may blow your unit out. These are real outputs measured with my wattmeter at 146 MHz. My advice is to use the last two settings to be on the safe side (250 mW for 5W and 50 mw for 3W) util this sensitive issue is fixed.
Shows 5W++ but delivers 9W
Shows 5W but delivers 9W
Shows 4W but delivers 9W
Shows 3W but delivers 9W
Shows 2W but delivers 9W
Shows 1W but delivers 9W
Shows 750 mW but delivers 8W
Shows 500 mW but delivers 7W
Shows 250 mW but delivers 5W
Shows 50 mW but delivers 3W
Mauricio
LU1AAX
Shows 5W++ but delivers 9W
Shows 5W but delivers 9W
Shows 4W but delivers 9W
Shows 3W but delivers 9W
Shows 2W but delivers 9W
Shows 1W but delivers 9W
Shows 750 mW but delivers 8W
Shows 500 mW but delivers 7W
Shows 250 mW but delivers 5W
Shows 50 mW but delivers 3W
Mauricio
LU1AAX
Re: Experimental Baofeng RD-5R version
This was fixed ages ago.
What Fw version are you using.?
What Fw version are you using.?
Re: Experimental Baofeng RD-5R version
Firmware info:
Built 15:10:12
Jun 12, 2020
[284c6e2]
12 days ago does not look like ages... when do you say this was fixed?
Built 15:10:12
Jun 12, 2020
[284c6e2]
12 days ago does not look like ages... when do you say this was fixed?
Re: Experimental Baofeng RD-5R version
If you originally loaded the experimental version a while ago, then the calibration data cache in the radio will have the wrong data in it
The only way to resolve the problem is to backup the Flash memory using the OpenGD77 CPS
Then use a hex editor e.g. HXD https://mh-nexus.de/en/hxd/ to erase the cached calibration at address 0000F000
The values at that address will look a bit like this
Offset(h) 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F
0000F000 A0 0F C0 12 A0 0F C0 12 EF 03 EF 3C BE 3C BD 3C
0000F010 BC 3C C0 3C C1 3C C1 3C C1 3C C0 3C BC 3C BC 3C
0000F020 BC 3C BD 3C BF 3C C2 3C C5 3C CB 3D 3B 3A 38 37
And if you change this to
0000F000 FF FF C0 12 A0 0F C0 12 EF 03 EF 3C BE 3C BD 3C
save the file and then restore it into the radio
Turn the radio off and one again, and it should load the manufacturers calibration data into the cache and the power levels should be more normal.
Note the Power levels are not going to be that accurate unless you actually calibrate them yourself, using a power meter and the Calibration screen in the CPS, because on these cheap radios they probably don't do individual power calibration in the factory as it takes too long
The only way to resolve the problem is to backup the Flash memory using the OpenGD77 CPS
Then use a hex editor e.g. HXD https://mh-nexus.de/en/hxd/ to erase the cached calibration at address 0000F000
The values at that address will look a bit like this
Offset(h) 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F
0000F000 A0 0F C0 12 A0 0F C0 12 EF 03 EF 3C BE 3C BD 3C
0000F010 BC 3C C0 3C C1 3C C1 3C C1 3C C0 3C BC 3C BC 3C
0000F020 BC 3C BD 3C BF 3C C2 3C C5 3C CB 3D 3B 3A 38 37
And if you change this to
0000F000 FF FF C0 12 A0 0F C0 12 EF 03 EF 3C BE 3C BD 3C
save the file and then restore it into the radio
Turn the radio off and one again, and it should load the manufacturers calibration data into the cache and the power levels should be more normal.
Note the Power levels are not going to be that accurate unless you actually calibrate them yourself, using a power meter and the Calibration screen in the CPS, because on these cheap radios they probably don't do individual power calibration in the factory as it takes too long
Re: Experimental Baofeng RD-5R version
Yes, that's what happened. I followed your instructions and now everything seems reasonably normal.
Power readings at 146MHz
5W++ yields a little bit more than 6W but less than 7W
5W yields 4W
4W yields 3.5W
3W yields 2.5W
2W yields 2W
1W yields 1.5W
750 mW yields 1.25W
500 mW yields 1W
250 mW yields 500mW
50 mW yields 200 mW
Can you please tell me how could I manually adjust calibration data so the settings matches the actual power?
BTW, is there a way to compensate a 800 hz tx frequency offset in a similar way?
Thanks!
Mauricio
LU1AAX
Power readings at 146MHz
5W++ yields a little bit more than 6W but less than 7W
5W yields 4W
4W yields 3.5W
3W yields 2.5W
2W yields 2W
1W yields 1.5W
750 mW yields 1.25W
500 mW yields 1W
250 mW yields 500mW
50 mW yields 200 mW
Can you please tell me how could I manually adjust calibration data so the settings matches the actual power?
BTW, is there a way to compensate a 800 hz tx frequency offset in a similar way?
Thanks!
Mauricio
LU1AAX