Homebrew antenna VHF
- You build a 1/4 wavelength groundplane antenna
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post 18 Sep 2026
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5 element ZL special for 2m band
Band 144 MHz end 435 splitter antenna
Bibanda per i 144 Mhz e i 430Mhz del tipo Log Periodic
Build a 2 Meter, 5/4 Wave Antenna By Mike Martell
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5 element ZL special for 2m band- A five element beam antenna, two folded dipoles are spaced a quaterwave apart and fed a quarter wave out of phase using a twisted quarter wave feed line. This results in the waves adding in one direction
Band 144 MHz end 435 splitter antenna- The band splitter is just a 250 MHz High Pass Filter and a 250 MHz Low Pass Filter connected together
Bibanda per i 144 Mhz e i 430Mhz del tipo Log Periodic- Antenna bibanda per i 144 Mhz e i 430Mhz del tipo Log periodic a 4 elementi
Build a 2 Meter, 5/4 Wave Antenna By Mike Martell- This antenna is unique in that it is enclosed entirely in 3/4" PVC which makes the design a little more complicated, the primary problem is that PVC tubing has a significant velocity factor which causes RF
Microsat Ham radio shop for ulari project, aprs, aprs with radio, bluetooth, gps, gsm, ham radio interfaces, weather,accessories, cables to radio
Amateur radio kits by Kanga US
Enigma Component Shop Cable & wire,capacitors, connectors, crystals/oscillators, filters, hardware,kits/modules,test & measurement