[R-390] Re: R390A S-meters

[Gord Hayward]

I ran a calibration of mine in the middle of the frequency range I use 
and the meter
was pretty well bang on.  Each division was close to the specified 10 dB 
and the
line was straight.  From this I'll claim its a real S-meter.  Further, I 
took the AGC
from the back and scaled it for another Collins S meter (I got it at a 
fleamarket so
the donor was not killed by my hand!) so it gives real S-units with S9 
beng 50uV
at tha ant terminal.  The delayed AGC means that it won't read below S6. 
 I use
both the meter reading and SINPO in my log and on my QSL card, just to keep
other hams confused!

Cheers de Gord, VE3EOS

-- 

Gordon L. Hayward, Ph.D., P.Eng.,
Associate Professor, Biological Engineering,
School of Engineering, University of Guelph,
Guelph, Ontaro, N1G 2W1.