If S-meters were accurate, this test would measure sensibility of the receivers. As they aren't,
I'm only left with speculation.
For example it's pretty obvious that my FRG9600 is deaf on UHF: the 440 MHz table shows how a 7/7 signal
on the AOR 8200 will be lost in noise on the Yaesu.
It's less obvious how receivers sharing the same logic and part of the rf section (AOR 8200 and 8600) can have
very different readings.
The Icom R8500 has the most usable instrument, but it's definitely not calibrated.
Signal strenght and/or sensitivity are not linear, as we have different readings for the same dBm at different
frequencies.
An HP8922 test set was used as signal generator. Consider that I don't understand much about the various
dB/uV calculations and only mean these grids as a very broad reference.
| 70 MHz | 150 MHz | 250 MHz | 440 MHz |
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