Alan, K2ZN wrote:
"A slick thing to try would be to put a really good (e.g. Datong FL3) audio
filter in place of the the stock CW filter in a Triton or older Omni. Of
course, the line levels and Z would need matching." -snip
I've been using one of these guys for a year+ with my 544 and can highly
recommend it for CW & SSB. For these 'older' radios (and their owners) it
affords an automatic notch, a 'floating' notch and width control from below
and above. Great on SSB and usually preferable to the 245 filter in the rig
for CW, IMHO. It works in the audio chain right out of the box. Lose the
wall wart if you get one.
73,
Tom N5OZQ
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