HFU HF Underground
Loggings => Longwave Loggings => Topic started by: Capt. Radio on November 24, 2013, 0416 UTC
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Just listened for a short while above 500kc tonight...
02:29utc HRD 524kc Kountze, Texas
02:40utc HMY 512kc Lexington, Oklahoma
Placed my homebrew 700 cycle audio filter inline for the first time in years.
I made it using only tuned L-C circuits and a single FET amp about 25 years ago. It's a real oddball design, but it sure has a very sharp peak at 700cycles. Nice for digging out weak cw.