I just programmed one with CHIRP for a friend a few days ago. I will
get his HT on a dummy load and watt meter to see if his power levels
match mine. I did not program those two on my bench.

Stay tuned ...

Reno K7CRL

On Tue, Oct 22, 2024 at 10:49 PM Dan Smith via Users
<[email protected]> wrote:
>
> > I found this thread on mygmrs forum about the AR-152 and the effect
> > CHIRP allegedly has on it. It's quite a good thread. I didn't get any
> > hits on RadioReference when I just searched.
>
> I hadn't read this thread until you posted, nor have I heard any complaints 
> about this issue. However, for context here on the list, people say the RT 
> Systems software appears to have the same effect, which likely means this 
> isn't actually a CHIRP-specific problem.
>
> > In a nutshell, it says that once you run CHIRP on your Baofeng AR-152.
> > your power settings are permanently altered such that you no longer
> > have low power or full power anymore.
> >
> > This post is from May and has been relatively quiet since. I wonder if
> > it's still a risk?
>
> For what it's worth, what is being described there doesn't make any sense to 
> me. Although a common misconception, CHIRP doesn't tell the radio "this 
> memory should be 8W and this other one should be 2W". All it says (and all it 
> can say) is "this memory should be power level 3, and this memory should be 
> power level 1". Those are just instructions to the radio about which numbered 
> power level to use, and the radio determines what that output power would 
> actually be. On some radios, there are calibration settings stored (in a 
> different part of memory) that could influence those numbers. However, a 
> download and subsequent upload with CHIRP by definition will upload the exact 
> bits into the exact locations and as such, it would be very unlikely that 
> simply doing that would cause the radio trouble like is being described.
>
> There's not really enough information in that thread to begin to comment 
> about why that may have happened. I'd have lots of questions to ask someone 
> making such a claim, including lots of details they seem to be glossing over 
> which are quite relevant. I also feel like if this was very widespread we'd 
> have seen at least one report of it in our bug tracker, but I find none. The 
> author of that post seems to think that it's a hardware issue (which seems 
> unlikely, but supported by the fact that the RT Systems software also does 
> it), so perhaps that's why. Also, testing with a power meter isn't really 
> enough to say anything about whether the radio is outputting a lower power 
> because it has been detuned, or if it's just driving lower, etc.
>
> > I have two 152s on the bench right now to program so I saw this post
> > just in time to stop. Both have the firmware rev A152V01 indicated as
> > problematic.  I'm surprised the issue hasn't been discussed here.
>
> Yeah, if you're concerned about it, then it's probably best not to risk it. 
> I'll also say that I believe the UV5R-derived Baofeng radios basically lie 
> about their firmware versions after a certain point starting many years ago, 
> so I'm not sure you can really say much about that firmware version.
>
> --Dan
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-- 
//CRL
Quis custodiet ipsos custodes?
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