[TenTec] using TT 218 filter as MAIN IF filter, CW only
Allan Taylor
k7gt.cw at gmail.com
Wed Dec 30 07:30:20 PST 2009
Has anyone tried or considered this? Using the 1.8 kHz filter (TT 218)
in place of the 2.4 kHz main
filter in the first IF? CW only... This would allow three choices of
bandwidths instead of two. (1800, 1000,
and 500). A concern is if it would 'magnify' phase issues across the
'corner' of the bandpass and
cause the infamous microchirp to return.
--
73 Allan K7GT
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