> My TT tends to loose a lot of sensitivity with 500 filter.
Hi Alan,
Gosh no, but I am using two Inrad 400 Hz for Cw. My filter
line up is:
9 mHz IF strip:
IRD 754, 2.8 kHz
IRD 756, 2.4 kHz
IRD 753, 400 Hz
And on the pass band, 6 mHz board:
IRD 755, 2.8 kHz
IRD 757, 2.4 kHz
TT 288, 1.8 kHz
IRD 700, 400 Hz
I often use only one of the IRD 400 Hz CW filters, and
not too often use other than the IRD 2.8's for SSB; only
go to some narrower set up during SSB if the QRM is
really close. I only do DX "picking" during contests,
don't contest, as such, at all, SSB nor CW.
In fact, my Omni is now pretty much set up for PSK31
QSO's, with which I am using Hamscope, which is
great for that mode. Of course, use the 2.8's for
monitoring the range of PSK activity.
Certainly, no loss of signal sensitivity, Alan.
73, Jim, KH7M
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