220 antenna9 links
- TX Four Square Antenna
- A 220-ft tower that has five catenary lines, each about 500 feet long. Four of these lines, running NE, SE, SW, and NW support four 1/4-wavelength wire verticals used in a 160-meter four-square antenna.
[ Hits: 648 | Votes: 0 | Rating: 0.00 ]
- Tri-Band J-Pole
- This strange looking antenna is a combination of Coupled-Resonator principle by K9AY and a quarter stubs to achieve low angle radiation pattern. Designed with 4nec2 NEC based antenna modeler and optimizer for 145/220/440MHz bands
[ Hits: 975 | Votes: 2 | Rating: 10.00 ]
- 3 band J-Pole Antenna
- Pictures of a 2 meter, 220, 440 copper J-Pole antennas
[ Hits: 1318 | Votes: 6 | Rating: 4.17 ]
- 437 MHz Crossed Yagi for Satellite work
- Crossed yagi for 437 MHz Satellite antenna, with power divider splitter build.
[ Hits: 4980 | Votes: 20 | Rating: 7.16 ]
- VHF UHF Coaxial Dipole Antenna
- A base station antenna you can easily build for 146,220 or 440 MHz, with performance similar to a J-pole but smaller and less obstrusive
[ Hits: 712 | Votes: 3 | Rating: 7.00 ]
- ZS6BKW in Inverted-V format
- ZS6BKW antenna design in inverted-v format antenna design at QRZ forums
[ Hits: 2575 | Votes: 1 | Rating: 2.00 ]
- The Ventenna
- Rugged, disguised 2m, 220MHz, 440MHz, and 2m/440 dual band antennas, HF portable antennas, portable dipoles.
[ Hits: 4333 | Votes: 18 | Rating: 8.55 ]
- HAM IV Rotor restoration
- HAM-IV antenna rotor repari and restore
[ Hits: 861 | Votes: 0 | Rating: 0.00 ]
- 137 kHz antenna preamplifier
- A simple 137 kHz antenna preamplifier to make your FT-817 (and others) useable on 2200m band.
[ Hits: 858 | Votes: 3 | Rating: 6.67 ]
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