Re: [IRCA] TP 11 Nov + Phasing

[Rick Kunath <k9ao@xxxxxxxxxxx>]

Walter Salmaniw wrote:
> Are others able to
> null strictly by sound without looking at ! the dials?  ........Walt
> Salmaniw, Victoria, BC

Actually I have difficulty trying to do it visually, just by ear works 
better for me.

The key in nulling, whether using a phaser or a rotatable loop, is to 
turn the receiver AGC off (it should be off anyway to avoid added 
flutter/fades from sub-audible hets) set the AF gain to full, and the RF 
gain to comfortably below overload.

I find the null is easy to attain like this, as there is no AGC trying 
to level out the effect of the nulling. Adjustment effects are really 
obvious.

Rick Kunath
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