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antenna coil
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Antennas
- Petlowany Antennas by K6NO
- WorldRadio Article on Petlowany antennas base on this principle: if a length of wire is wound into a spiral-shaped coil and excited by a radio frequency current connected to the innermost portion of the coil, it will then, and only then, exhibit RF characteristics that closely approximate those of a resonant linear wire of the same length
[Hits: 2286 | Votes: 8 | Rate: 6.75] Antennas : 10M Antennas : 40M Antennas : 80M
- 80m mobile antenna
- The antenna is made in four sections which consists of a base matching coil, a helical section, a centre loading coil and the top whip section with its capacity hat by G4DCH
[Hits: 1598 | Votes: 0 | Rate: 0.00] Antennas : Antenna Calculators Antennas : Coils Antennas : Dipole
- Inverted V
- Described is a simple inverted-V antenna which, when used with a balanced ATU, can be used on all the main Radio Amateur HF bands (80, 40, 20, 15 and 10m). The cental support is made in such a way that the wire can be coiled up for storage when the antenna is taken down.
[Hits: 2736 | Votes: 1 | Rate: 8.00] Antennas : Mobile Antennas : Multiband
- QRP Antenna 80-40-20-15 End Fed Antenna
- A long wire antenna that will load up on 80, 40, 20 & 15 meters without an antenna tuner and without balun coils
[Hits: 4247 | Votes: 3 | Rate: 5.00] - Do it yourself HF2V
- HF2V dimensions for all the coils and capacitors. Make your own HF2V antenna with 160 80 40 and 30 meters kits by OZ9AEC
[Hits: 1414 | Votes: 2 | Rate: 9.00] - Homemade Loaded Coil Dipole
- Homemade Loaded Coil Dipole ( w8010 diamond ) for 10, 15, 20, 40 and 80 meter
[Hits: 162 | Votes: 0 | Rate: 0.00] Antennas : Sloper Antennas : Theory
- Antenna Efficiency
- K0BG article con antenna efficiency covering topics like radiation resistance, coil losses and ground losses, other kind of losses. How calculate efficiency and Bandwidth Notes
[Hits: 242 | Votes: 0 | Rate: 0.00] Antennas : Traps
- Bootstrap coax traps for antennas
- Analysis of an antenna trap where a coil is formed of a length of coax cable, the outer conductor of one coax end is tied to the inner conductor of the other coax end, and the remaining connections form the terminals for the trap.
[Hits: 321 | Votes: 0 | Rate: 0.00] Manufacturers : Antenna Parts
- CWS Coil Winding Specialist
- Manufacturer of transformers, inductors coils and chokes. Custom winding, EMI / RFI Filters, Antenna Windings on ferrite rod, Antenna Winding on phenolic. Any antenna coil designs.
[Hits: 222 | Votes: 0 | Rate: 0.00]
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