20 mhz antenna107 links - and 1 categories
Antennas : CobWebb
- Building a CobWebb Antenna
- Homebrew a cobwebb antenna for the HF bands. This page describe a cobwebb multiband antenna resonating on 14 18 21 24 and 28 MHz. The cobweb antenna model can be considered a fan dipole, or better, multiple dipoles fed in parallel.
[ Hits: 796 | Votes: 3 | Rating: 7.67 ]
- 80M 4-Square
- An antenna project to obtain a bigger signal on the
80 Meter (3.5 to 3.8 MHz) amateur radio band
[ Hits: 449 | Votes: 0 | Rating: 0.00 ]
- A Small Loop for 20 and 15 meter band
- A Small Transmitting Loop Antenna for 14MHz and 21MHz, an antenna you might consider if you have limited space, Based on material originally published in Amateur Radio, November 1991
[ Hits: 177 | Votes: 0 | Rating: 0.00 ]
- Wide Band Active Loop Antenna
- A shielded broadband (~200 MHz) active loop antenna offers more quiet and relatively less interference reception.
[ Hits: 481 | Votes: 4 | Rating: 7.50 ]
- 40 m short vertical
- A shortened and invisible wire antenna for 7 MHz
[ Hits: 4252 | Votes: 10 | Rating: 7.70 ]
- 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: 1586 | Votes: 8 | Rating: 6.51 ]
- Cross Band Repeaters
- Crossband Repeating is a process where a Ham transmits one signal on one band (typically UHF), and it is received by another radio with a better antenna/power installation, and re-transmitted (typically on VHF) to another radio system, or a repeater. Everyday examples of cross-band repeaters are repeater receive sites that hear the input signals on 2m and retransmit those signals on a frequency higher than 220 MHz.
[ Hits: 70 | Votes: 0 | Rating: 0.00 ]
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