On Jul 6, 2011, at 7:52 AM, Keith Hamilton wrote:
Actually I am trying to reconcile the differences between the center
frequency of the 500 Hz filter and the 250 Hz filter, both in the
6.3 mHz PB IF. The center frequencies should be the same -( 6.299250
I think) regardless of the PBT control setting (11 or 1 o'clock) or
the 9 mHz filter in use (I was using the 2.4 hz filter in the 9mhz
IF at the time.) Since the center frequencies are not the same, (I
must make a frequency adjustment to obtain maximum signal strength)
I wanted to know if I can adjust the center frequency of my 250 hz
filter or is the filter just too old and drifted. I would also like
to know if others have experienced this discrepancy between two
filters installed in their radio. Is it common for the older Ten Tec
filters to go off frequency?
Thanks! Keith W8GX
Do you have an RTTY (as opposed to CW) filter?
Geoff.
--
Geoffrey S. Mendelson, N3OWJ/4X1GM
Making your enemy reliant on software you support is the best revenge.
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