frank wrote:
1. The lowest cw pitch note is 400hz (which I think most prefer) but
the info I read in the manual states its best to use a pitch note
between 500 to 600hz for best results. Does anyone have an idea
why that is the case?
The sidetone has the best sine-wave shape at about 500-600 Hz. with the
unmodified K2. You can change a couple of components if you want to change it.
The closer the sidetone is to a sine wave, the easier it is to use it for
zero-beating.
2. The manual states that the cw bandwidth can be selected from 200
to 2000 Hz. If you were receiving a solid S9 signal, when you tune
through the signal is it possible to hear the other side of zero
beat at any filter bandwidth?
When you set it up you position the BFO so that the signal is in the lower part
of the passband so that you do not hear the other side of zero beat.
3. If the DSP option is added does the audio DSP filter track the CW
bandwidth selection. Or do you need to select them separately?
You need to select both the bandwidth and center frequency of the DSP
separately.
--
73,
Vic, K2VCO
Fresno CA
http://www.qsl.net/k2vco
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