Re: s-meter reading?
Brian / KB5EO
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Don Rolph's reply is right on. I've "calibrated" many of my S-meters (including my TM-D700) in my lab using properly calibrated RF power sensors. In my experience, it's most practical to think of even a "calibrated" S-meter as measuring in "grains of salt". I find the linearity (logarity? LOL) of digital S-meters to be no better than old mechanical movements.
Most S-meters are as precise as a hand grenade, but their value as a relative indicator between various signals on the same receiver is excellent -- calibrated or not. Having a weird number of bars (like 5 or 7) is frustrating when you're trying to tell someone their signal level on your rig though. Just gotta live with the ambiguity, I suppose.
-- Brian / KB5EO
On Mon, Feb 7, 2022 at 7:30 PM Don Rolph <don.rolph@...> wrote: