I did some calculations on the 50db quieting numbers, to convert them to dbf (decibels above a femtowatt, which is a quadrillionth of a watt).
If the tuner's antenna input is 75 ohms (i.e., a coaxial connector), 50 db quieting occurs at:
Mono: 5dbf
Stereo: 38dbf
If the tuner's antenna input is 300 ohms (i.e., screw terminals that accept 300 ohm twinlead), 50 db quieting occurs at:
Mono: -1dbf
Stereo: 32dbf
The stereo numbers appear reasonably decent but not exceptional. The mono numbers, as I indicated above, appear to be too good to be true, and I suspect represent a mistake.
You can find the numbers for a great many tuners here:
http://www.fmtunerinfo.com/specs.html
Regards,
-- Al
If the tuner's antenna input is 75 ohms (i.e., a coaxial connector), 50 db quieting occurs at:
Mono: 5dbf
Stereo: 38dbf
If the tuner's antenna input is 300 ohms (i.e., screw terminals that accept 300 ohm twinlead), 50 db quieting occurs at:
Mono: -1dbf
Stereo: 32dbf
The stereo numbers appear reasonably decent but not exceptional. The mono numbers, as I indicated above, appear to be too good to be true, and I suspect represent a mistake.
You can find the numbers for a great many tuners here:
http://www.fmtunerinfo.com/specs.html
Regards,
-- Al