"Serge Auckland" wrote in message
...

"Keith G" wrote in message
...

My new/old Technics tuner advises me my FM signal strength is 52 dB - is
that good, bad or just plain ugly, given the palaver with the aerial
installation a while back?

TIA

(Also posted to the vinyl group in error!)
Keith,

Without knowing what the 0dB reference is, it's difficult to know *what*
they mean.


I never know what they mean!! :-)



If the signal strength is -52dBm into 75 ohms, then that's a voltage level
of 687uV which is a bit low. Knowing where you're located and how far from
Peterborough, I would have expected some 2mV at the tuner, but maybe you
have some high ground between you and the TX. If the tuner doesn't hiss on
Radio 3 in the evenings when the processing is turned off, then you should
be OK even on the signal you have. Most tuners achieve 50dB S/N ratio with
under 100uV, but don't reach their maximum S/N ratio until nearer 1mV.


OK Serge, thanks for that

Ordinarily, the signal/sound quality seems to be very good. I have only
noticed a bit of R3 hiss on the odd occasion in the evenings.....