10 mhz coil antenna
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Antennas : 40M : 40 meter Dipole Antennas
- 40m loaded dipole
- This is an short dipole for 7 MHz. Total length of this dipole is just 10 meters, 33 feet. Missing lenght is balanced by a coil made of 49 turns of a 40mm diameter pvc pipe. The use of a choke balun is recommended, as always, to adapt the unbalanced coax cable to the balanced antenna, and to prevent RF feed back along the coax shield.
[ Hits: 192 | Votes: 4 | Rating: 8.75 ]
- Balcony Antenna for 7 10 14 MHz
- A project for a balcony antenna that works on 7 10 14 MHz made by 2 PVC tubes coiled with insulated copper wire, a solution for restricted lots.
[ Hits: 2476 | Votes: 2 | Rating: 9.5 ]
- The Squid Pole Wire Antenna Re-visited
- The author explores enhancing the performance of a 7-meter fiberglass squid pole wire antenna for amateur radio. The wire, resonant at 10MHz, poses impedance challenges on various bands. Experimenting with direct coax feed and UN-UN transformers, the LDG Z11-Pro2 auto-tuner is found effective but may show deceptive SWR readings. The author employs adjustable UN-UN ratios and introduces a custom "porcupine" coil to optimize the antenna's efficiency.
[ Hits: 87 | Votes: 0 | Rating: 0 ]
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