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Bug #9776

open

Cannot program any 70 cm frequency on Baofeng UV-5R (and other devices)

Added by Frank Baecker about 2 years ago. Updated about 2 years ago.

Status:
Feedback
Priority:
Normal
Assignee:
-
Category:
-
Target version:
-
Start date:
03/06/2022
Due date:
% Done:

0%

Estimated time:
Chirp Version:
daily
Model affected:
(All models)
Platform:
Windows
Debug Log:
I read the instructions above:

Description

Hello Team,

I cannot program any 70 cm channel on my Baofeng UV-5R+ (same error on Wouxoun KG-UV6D), using whatever cable or settings.

Programming 2 m channels (including offset, tone etc.) just works fine but all frequencies in the 70 cm range immediately give the error "Fehler beim Setzen der Speicher: Frequency 438.000000 is out of supported range Tx freq 443.000000 is out of supported range".

(I don't know where it's taking the 443 MHz from tho as I didn't enter that).

This already happens when entering into CHIRP, it's not even at the point of uploading anything to the device yet! And yes, I downloaded all channels from the device first, saved to disk and then try to change them. On the device, I can of course enter these frequencies manually.

The same happens when I load the German 70 cm channels from the stock config, it's also not possible to add them to the list.

How do I program such channels such as 438,850 MHz / 431.250 MHz (-0.6)?

Frank


Files

06-03-2022 17-11-11.jpg (21.7 KB) 06-03-2022 17-11-11.jpg Frank Baecker, 03/06/2022 04:11 PM
Baofeng_UV-5R_20220307.img (6.49 KB) Baofeng_UV-5R_20220307.img Frank Baecker, 03/07/2022 01:09 PM
Baofeng_UV-5R_20220307(fixed).img (6.49 KB) Baofeng_UV-5R_20220307(fixed).img Jim Unroe, 03/13/2022 05:08 PM
Actions #1

Updated by Jim Unroe about 2 years ago

  • Status changed from New to Feedback

The typical VHF/UHF band limits in CHIRP for UV-5R like radios is: 136.000-174.000 MHz and 400.000-520.000 MHz. They would have not issue with either the 438.000 MHz or 443.000 MHz frequencies. It would seem that someone or something has changed the rf.valid_bands ranges. Please answer the following questions...

Which version of CHIRP are you using (see Help -> About)?
Which Vendor are you selecting when downloading?
Which Model are you selecting when downloading?

Also attach a freshly downloaded CHIRP Radio Images (*.img) file from the UV-5R+ to this issue.

Jim KC9HI

Actions #2

Updated by Frank Baecker about 2 years ago

Version: CHIRP daily-20220219
Vendor: Baofeng
Model: UV-5R (since it's the closest match for UV-5R+Plus)

Image is attached.

Actions #3

Updated by Tony Fuller about 2 years ago

Hi Frank,

I took at look at this and was able to reproduce the pop up you see. I can see the VFO A is set to the frequency in the error popup. I am not sure why you receive this pop up though. I'll do some digging today.

Actions #4

Updated by Tony Fuller about 2 years ago

Debugging notes:

Line 804 in @uv5r.py@ is evaluating to @True@ which sets @rf.valid_bands = rax_bands@ but @rax_bands@ does not include the 70cm band.

https://chirp.danplanet.com/projects/chirp/repository/entry/chirp/drivers/uv5r.py#L804

        rax_bands = [self._vhf_range, self._220_range]

        if self._mmap is None:
            rf.valid_bands = [normal_bands[0], rax_bands[1], normal_bands[1]]
        elif not self._is_orig() and self._my_upper_band() == vhf_220_radio:   # <<<<<<<<<<<<<<< Evaluating to True
            rf.valid_bands = rax_bands
        else:
            rf.valid_bands = normal_bands
        rf.memory_bounds = (0, 127)
        return rf

In my debugger:
self._is_orig() = False
self._my_upper_band() = '\x02'
vhf_220_radio = '\x02'

Actions #5

Updated by Tony Fuller about 2 years ago

I would like to call for a second opinion. CHIRP seems to think your radio upper band is 220 MHz based on the result from @self._my_upper_band()@

Maybe you could catch someone more knowledgeable than me on the chirp-users mailing list.

Actions #6

Updated by Frank Baecker about 2 years ago

Hi Tony,

Thanks for your investigations and feedback.

What I don't understand is: it's not only the Baofeng showing this behaviour but also the Wouxun, so I don't think it can really be related to the device itself. But good to know that at least it's not a "user error" and I didn't overlook something obvious. What I can still try is to run the software on a different laptop to see if it's somehow related to the environment.

Actions #7

Updated by Jim Unroe about 2 years ago

Someone has borked the bandlimits of your radio which is causing it to be detected as one of the older VHF/220 models.

The attached CHIRP Radio Images (*.img) file has the issue corrected.

Tip: Don't set the lower UHF band limit to 2xx.

Jim KC9HI

Actions #8

Updated by Frank Baecker about 2 years ago

Thank you, I'll give it a try. I have never changed any of those settings though and nobody else had access to the device. Unless the device was shipped with these settings.

Since the Wouxoun has the same problem, I wonder where this setting is coming from as I didn't set it - makes no sense to restrict your own device.

Actions #9

Updated by Frank Baecker about 2 years ago

Thank you, I'll give it a try. I have never changed any of those settings though and nobody else had access to the device. Unless the device was shipped with these settings.

Since the Wouxoun has the same problem, I wonder where this setting is coming from as I didn't set it - makes no sense to restrict your own device.

Actions #10

Updated by Frank Baecker about 2 years ago

Thank you, I'll give it a try. I have never changed any of those settings though and nobody else had access to the device. Unless the device was shipped with these settings.

Since the Wouxoun has the same problem, I wonder where this setting is coming from as I didn't set it - makes no sense to restrict your own device.

Actions #11

Updated by Frank Baecker about 2 years ago

Sorry for the repeated comment, my phone has caused this and it looks like I can't delete it.

Actions #12

Updated by Jim Unroe about 2 years ago

Frank Baecker wrote:

Thank you, I'll give it a try. I have never changed any of those settings though and nobody else had access to the device. Unless the device was shipped with these settings.

Since the Wouxoun has the same problem, I wonder where this setting is coming from as I didn't set it - makes no sense to restrict your own device.

Somebody changed them from the factory defaults (typically VHF Low: 130, VHF High: 179 and UHF Low: 400, UHF High: 520) to VHF Low: 100, VHF High 199, UHF Low: 200, UHF High 999. It was the UHF Low: 200 that was causing the issue.

Baofeng UV-5R/UV-82 like radios send the band limits to CHIRP as part of cloning initialization process. That is what CHIRP uses to determine if it is programming a VHF/UHF model or a (now rare) VHF/220 model. Older radios always send the factory band limits. Some of the newer radios will update what is set back to CHIRP based on what the user may have changed the band limits to. On the models that do this, setting the lower UHF band limit anywhere from 200-299 will cause CHIRP to thing it is working with a VHF/220 model that doesn't support UHF frequencies.

I thought about changing it band limits back to factory but opted to keep the same range and just move the split.

Jim KC9HI

Actions #13

Updated by Frank Baecker about 2 years ago

I understand the root cause but don't see how this happenec - the device was bought on Amazon as a new device (off the shelf) and had no previous owners. I haven't changed any of those settings directly on the device and since I couldn't even add the channels in Chirp, I also didn't perform any further changes there
.

Actions #14

Updated by Frank Baecker about 2 years ago

I have now been able to fix the frequency settings. I couldn't load the image as it said "incompatible device" or something but I found the frequency settings you mentioned.
No idea why this was set like this. But it's fixed now, thank you!

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