Scott,
When receiving in lower sideband, the AF highest tones are on the lower
side of the passband display on the P3 - lower than the carrier.
The audio pitch is the difference between the carrier and the tone.
The Hi-cut moves the high end of the resulting audio, and in order for
that to happen the lower edge of the passband shown on the P3 must move
closer to the carrier.
I hope that helps.
73,
Don W3FPR
On 2/12/2014 2:44 PM, Scott wrote:
However, I am still left with some doubts: particularly, why does the upper
limit change when I adjust the lo-cut, and the lower limit change when I adjust
the hi-cut? Thus, if I want to narrow my bandwidth to avoid a station above
the desired one, I must adjust the lo-cut (I can see this happen on the P3).
This occurs on all bands on CW.
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