[Kenwood] FM S-meter calibration
Al - NW2M
[email protected]
Sun, 02 Jun 2002 21:01:58 -0400
Greetings,
I have a D700 which is 2/3rds computer 1/3 radio. What are the group's
thought on the S-meter performance? This FM rig is very sensitive with
a 0.150 uV for a 12 dB SINAD. What is a reasonable S-meter
calibration? I know FM is very different than SSB. I also own a TS-50
which also allows you to "re-curve" the S-meter in various modes of
operation.
The D700 S-meter can be "re-curved" as you pick the S1 and S7 voltage
points. I currently use the SINAD performance number as the S1 value,
and 10 uV for full scale (S7). A 12 dB SINAD is 75% noise and 6uV - 10
uV shows no appreciable improvement on a full quieting signal. The
SINAD and 10uV voltage points work well for me.
Thoughts? Again, FM is very different than SSB or CW S-meter stories
(25 or 50 uV for S9+20db lets say.... do not apply).
73, Al - NW2M