Garey Barrell <[EMAIL PROTECTED]> made an utterance to the drakelist gang
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Andy -
Not easily. The CW offset is about 900 Hz, to move the CAR OSC well
within the passband of the LSB filter, and the sidetone (determined by
the R/C phase shift network R97, 98, 99 & C110, 111, 112) attempts to
generate a sidetone of that frequency. Various tolerances conspire to
make that chancy, at best. You "could" change those components for a
lower sidetone and it IS possible to shift the CAR OSC a little less by
changing C177 and readjusting C6, but if you move it too far it "falls
off" the slope of the filter, killing the drive on CW.
Personally, I'm about 95% CW, and I never use the pair in transceive for
CW. Transceive was never intended for CW!! :-) I leave the FUNCTION
switch in the ON position and listen to the transmitter "live". The AGC
is good enough that the transmitter isn't TOO loud, and I use phones
with them forward of my ears rather than right on them. That way I
hear my own signal and can choose any "sidetone" I want when I "zero"
the station I'm calling.
73, Garey - K4OAH
Atlanta
Drake C-Line Service Manual
<http://www.k4oah.com>
Andy Bullington wrote:
"Andy Bullington" <[EMAIL PROTECTED]> made an utterance to the
drakelist gang
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While we're on the subject, is there any way to lower the pitch of the
sidetone? I've grown used to a 600 hz sidetone and the high pitched
sidetone of my Drake twins drives me nuts. Too bad because my T4XB
produces the best sounding CW note in my station.
Andy W1AWB
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