We added 3 new links to our pages
- Stealth Apartment Antenna
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- Simple DIY Stealth Apartment Antenna for 20m and 40m
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- Notes on Portable HF Antennas
new
- Notes on an optimum Portable HF Antenna, a comparison of MFJ927 and SGC239 autotuners, and a 31 ft. vs 43 ft. vertical by VE1ZAC
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Home : Technical Reference : Filters
- CW Notch Filter
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- Homebrew CW notch filter project by KN9B
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