An audio filter like the Nescaf can help you discern between CW signals on a busy frequency, especially with small rigs like the Pixie, Frog Sounds, Rock-Mite, ...
Hi, In this video I give you an impression of my new NEscaf: i.e. New England QRP club switched capacitive audio filter (CW filter). Sri, Not: "North England" as I ...
Listening to W1AW on Elecraft K3. Camera is wedged between headphones. NESCAF filter kit cost $31 from the NEQRP Club. Results are excellent. No ringing ...
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