wire for long wire anten
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Antennas : Antenna Calculators- Antenna too long! Capacitive couple with transformation to TRX.
- Wire antenna calculator with couple c for antennas that are too long.
[ Hits: 96 | Votes: 0 | Rating: 0 ]
- About The Beverage Antennas - Receiving Antennas
- An article about the Beverage antennas, super long wire receiving antennas thar are unidirectional and have a very low noise that makes this antenna excellent for low band dxing. By Thomas R. Sundstrom W2XQ, 73, June 1981, 73 Magazine
[ Hits: 185 | Votes: 1 | Rating: 10 ]
- Beverage Lightning Protection
- The article describes adding lightning protection to Beverage antennas, which are long wires susceptible to lightning strikes. The author reviews common lightning protection circuits and discusses their components. They then detail their design based on existing methods, highlighting choices for components and reasoning behind them. Finally, the author presents the completed design and its implementation on their Beverage antennas.
[ Hits: 14 | Votes: 0 | Rating: 0 ]
- Microvert Antenna for 40m by ON7IR
- A mircovert antenna assembled for the 40m version of the DL7PE antenna.
A one meter long aluminum tube with 24mm diameter is used for the base (element 1) and a 50cm aluminum tube with 20mm diameter for element 2 (the extention). A pvc pipe, 34cm long and with a diameter of 38mm, is used to wind the coil on (1mm enamelled copper wire).
[ Hits: 152 | Votes: 0 | Rating: 0 ]
- Testing End Fed Long Wire Antenna
- Testing a 27.2 metre end fed long wire antenna,used for SOTA activations placed as an inverted V. The author reports in this article an on the field practical result.
[ Hits: 168 | Votes: 0 | Rating: 0 ]
- End Fed Antenna for WARC Bands
- I used a FT 240-43 for much more power, not needed but beter safe than sorry.
150 Watt continious, 300 Watt PEP SSB, 90 Watt Digimodes 10 Mhz, 18 Mhz, 24 Mhz Very easy to build design and a good antenna for people who don't have much space for big towers or long wires This design is from Hans - PE1RNU
[ Hits: 187 | Votes: 1 | Rating: 3 ]
- Multi-Band End-Fed Antenna Design for Limited Space
new
- This document details the construction of a multi-band end-fed antenna, suitable for situations with limited space for larger antennas. The design utilizes a 1:49 to 1:60 impedance transformer to match a half-wave wire antenna fed at one end. Compared to a traditional dipole, this antenna resembles a highly unbalanced Windom antenna with one very long leg and a virtual short leg. The design eliminates the need for radials but relies on the coax cable shield for grounding. The document recommends using at least 10 meters of coax and installing a common mode filter at the entry point to the shack for improved performance.
[ Hits: 76 | Votes: 0 | Rating: 0 ]
- Wire Antenna Design Lengths
- The Classic Numbers for All Types of Wire Antennas at HF. Wire antennas need to be made a bit long and cut to resonance. They are affected by height above the ground and surrounding objects. In order to get an idea of the right place to start, certain formulas are generally accepted.
[ Hits: 330 | Votes: 1 | Rating: 7 ]
- Balcony Vertical HF Antenna
- The simple balcony vertical HF antenna made with plastic fishing pole. Just along the pole I install copper wire in 7 meter length. Then was installed ATU. It was used home brew tuner. For each band was used one counterpoise in length 0.8 x lambda/4
[ Hits: 238 | Votes: 0 | Rating: 0 ]
- 40m center loaded vertical antenna
- A 5 metre center loaded vertical for 40m combined with a 4 wire ground plane.
[ Hits: 297 | Votes: 0 | Rating: 0 ]
- 5 element wire Yagi antenna for 20 m
- A 5 element wide spaced yagi for the 20m long path to Europe was installed at ZL6QH, the antenna is fed with a 600 ohm open wire feed line.
[ Hits: 1174 | Votes: 0 | Rating: 0 ]
- Long Wire Antenna for portable operations
- With the view to establish a quick and easy multi-band antenna deployment for portable and camping operations a simple long wire antenna with an earth or earth plus counterpoise arrangement with a 9:1 voltage unun including a tuner or simply with a tuner is one possible solution. With the 9:1 voltage unun and wire lengths suggested in the below tables the antenna should present non extreme impedances for all HF amateur band frequencies. This page is far from complete and represents the ongoing investigation into this type of antenna. Experiments to date seem to have raised more questions than obvious answers.
[ Hits: 804 | Votes: 13 | Rating: 8.69 ]
- Inside The Icom AH-4 Antenna Coupler
- The AH-4 is an antenna coupler/tuner designed for long wire or whip type antennas.
[ Hits: 579 | Votes: 1 | Rating: 9 ]
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