From my experience, the UV-82C or lower units have a dummy S-Meter. UV-82HP does indeed have a working S-Meter.
Lynda W5EGL
On Nov 22, 2017, at 9:33 AM, Tom Consodine ND5Y via chirp_users chirp_users@intrepid.danplanet.com wrote:
I haven't seen anybody post anything about Baofeng, or clone company, production procedures so I don't know if they calibrate every single radio. I think probably not because that would increase the cost but I could be wrong.
Calibration settings could be determined in a prototype "golden unit" and then the exact same settings could be programmed into the one-time-programmable firmware memory in each production unit.
The UV-5R/UV-82 series have only two trimmers on the board, reference oscillator frequency and power level. I bet that is they only things they set on the production line.
I have never hear of anybody having one with a working S-meter so I don't think that is calibrated at all.
Tom ND5Y
Don't know about these radios but many have oscillator frequencies, RF and IF gain, oscillator injection levels, s-meter calibration and much more saved in software at calibration time so no two radio's images are alike.
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