Ultimage 3 QRSS kit - page 11
Nov 28, 2018
CW filter for my uBitx
Category: General
Posted by: lex
New mod for my uBitx. I build a HI-PER-MITE 200hz width active audio CW filter which is designed by David Cripe, NM0S (check out the interview with him on QSO Today). The schematic and working is published on the HI-PER-MITE page of the Four State QRP Group.
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