[R-390] Another Carrier Meter question

[Tim Shoppa]

WB7SSN writes:

> It takes a pretty strong station to get any readable meter movement.

Maybe it's a measure of noise in my neighborhood, but with any kind
of antenna hooked up my R-390A's both register between 20 and 30dB
on the carrier meter at 4kHz or 8kHz bandwidth.  Big powerhouse
SW stations (Deutsche Welle, RCI, etc.) come in between 60dB and 80dB.

I've never tweaked the meter or associated circuitry for any kind of
calibration, I just adjust R523 for something near zero when there's
no antenna hooked up.

Tim.