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> Autek research qf-1A ssb cw am audio filter peak notch
Autek research qf-1A ssb cw am audio filter peak notch
AUTEK RESEARCH MODEL QF-1A SSB CW AM AUDIO FILTER
This unit is placed between your receiver and your speaker. Audio is processed to improve selectivity, remove annoying hetrodynes with an adjustable notch filter, and act as an adjustable low pass or high pass filter for all signals.
Selectivity is adjustable down to a narrow 20 hz. Resonate frequency is adjustable from 250 hz to 2500 hz. CW signals jumps out with this unit.
Aux notch is adjustable from 80 - 11,000 hz.
Comes with copies of instruction sheets. Case has been repainted and this unit works well. I was easily able to peak cw signals and remove others nearby. Used, tested, guaranteed fully working.
