Narrow Band QRQ CW filter, 50 hz wide, 2 APP combo to get rid of ringing & howling - 50 wpm test

[Chuck aa0hw]

this is an experimental test setup to get rid of narrow band CW filter SEA SHELL BACKGROUND HOWLING, and QRQ CW Ringing...
by using a:

1. SIMPLE GATE
2. SIMPLE CW BANDPASS FILTER

the gate silences the "in between" cw element sea shell howling, and ringing, but also causes key clicks...

the following CW BANDPASS FILTER(adjustable Q) gets rid of the GATE's key clicks

https://calf-studio-gear.org/

the setup was using a VLF CW TRANSMITTER & VLF RECEIVER(using SAQrx) -SAQrx has a 50 hz wide narrow band cw filter setting, used for this demo...