[amsat-bb] Please do not use too much power on the uplinks
deyoung_james at yahoo.com
Sun Dec 3 16:23:26 PST 2006
I have noticed since about 15 November 2006, for sure
since 25 November my loopback frequency measurement
values on FO-29 have changed and are more variable.
Normally my loopback frequencies on FO-29 are stable
at the several hundreds of Hz but lately they are
variable with a peak range of 1.5-kHz--so far. Now I
know why lately I am getting these loopback frequency
changes from pass-to-pass and day-to-day. When the
passband is saturated the frequency translation is
non-linear. Additionally, distortion becomes a
problem for all users when the passband is saturated.
James A. DeYoung (KG4QWC), 3218 Wellington Road, Alexandria, VA 22302-2229, deyoung_james at yahoo.com
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