You have legitimately posted your request fir a switch to convert the accurate Flex S-Meter into a more traditional innacurate Relative S-Meter similar to the approximations of signal strength derived from Legacy AGC Loops. Since Flex does not use Legacy AGC loops it might be hard to implement
I can understand that many people would gain comfort from the fiction of those readings WHERE no antenna attached implies S0 even though the Minimum Discernable signal is not -127dBm but rather something like -110dBm or S4.
Anyways I Always thought all DX and contest signal reports were 5/9 whatever. Hi. Hi.
While I personally applauded the demise of legacy S-Meters Let’s see how many likes you get.
If you receive a S9 or -73dBm signal and add 30dB gain in the preamp. A Legacy AGC loop will read S9+30dB. But your signal really is still -73dBm at the antenna and all the preamp should have done is reduced your noise floor by 30dB.
But again I can understand how people can prefer to enjoy the comfort of the fiction that a preamp makes a received signal at the antenna stronger because lowering the relative noise floor makes it seem so.
Here is a link to the Woodbox Radio ANALOG S-Meter
Looks and feels like one of the Legacy Meters but unfortunately unlike legacy meters it still gives you an accurate reading rather than an AGC Loop Approximation so 30dB Preamp gain does NOT increase the reading at the antenna
I set a 500 Hz RX filter width.
And all I got was this crazy picture showing SmartSDR reading S-0.
No internal noise visible. No signals either.
Hard to argue with reality.
BTW when I switch it to read as dBm it reads as low as -135 dBm. There is always noise in this reality. It can be measured.
The level varies 2-3 dBm very slowly, but it won't read any lower than S-0.
When I turn off the 20 dB preamp it does read S-1 @ -120 dBm.
For real-time discussions
73, Jay - NO5J
I never knew the idea of an S-Meter was so important to so many people.
To me, it is far more important to be able to make the QSO, or hear the weak
DX on SSB, than to stare at a meter all day [which by nature of how many different
manufacturers are doing it differently, is a "Meaningless Index of Performance" meter.]
SO, if I go "key down" broadcasting a carrier, and 10 different people in different locations are receiving me
with different model/brand rigs, different antennas, in different locations, each one will report a different reading. Even if they were all lined up in the same field with their different rigs and antennas, they might
well each read different. So what use is that? If they heard me at all, I am in their log book. If not, I really
don't care what the reading was :-) And if they did log me, again, I really don't care what the reading was :-)
And furthermore, as some previous poster pointed out, if you happen to work a contest, all the logged entries look like 59 to me, I have rarely seen different, since people are moving so fast to log contacts they don't seem interesting in staring at a meter long enough to analyze, should this be a 55 or a 57 or a 54???
Are we perhaps getting all tangled up in measurebating, when it might be far more fun to make contacts?
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