hi q antennas
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Antennas : 160M- Short antennas for 160m
- Often it is not possible to erect a full quarter wave verticals, especially on 160m or even more so at 600m. In this article N6LF illustrate some ideas.
[ Hits: 1135 | Votes: 1 | Rating: 10 ]
- Cubical Quad Calculator
- An online javascript calculator for cubical quad antennas, simply input the resonating frequency to calculcate up to a five element quad antenna.
This quad antenna calculator let you determine the total length of each element and spacing among elements.
[ Hits: 1008 | Votes: 20 | Rating: 7.25 ]
- QRP Magnetic longwire balun with VHF-splitter
- This Magnetic Longwire Balun (MLB) makes it possible to efficiently use a coaxial lead-in cable with all forms of longwires, T-forms or other types of wire antennas, without the need for an antenna tuner.
[ Hits: 753 | Votes: 2 | Rating: 6 ]
- Fractal Antennas
- Observing how fractal antennas might exhibit characteristics that are correlated to their form by kb7qhc
[ Hits: 435 | Votes: 0 | Rating: 0 ]
- Building UHF Antennas
- This method of construction can be used on most UHF through \"low\" microwave Yagis, and is especially useful for the 33, 23 and 13 cm bands
[ Hits: 714 | Votes: 1 | Rating: 10 ]
- VHF Log Periodic Antenna
- 17-Element Very High Frequency/Ultra High Frequency Log Period Dipole Array
[ Hits: 1246 | Votes: 7 | Rating: 5.86 ]
- Mobile antenna controllers
- All remotely controlled HF mobile antennas require some sort of device to power the motor. Hints on setting up a ham radio mobile antenna by k0bg
[ Hits: 649 | Votes: 1 | Rating: 1 ]
- Antennas of Field Day
- Main High Frequency Antennas from the 2009 LARC FARL Field Day, Ford Amateur Radio League. A document comparing antenna performances and flexibility among a G5RV an Carolina Windom and a Cushcraft R7 vertical antenna.
[ Hits: 409 | Votes: 0 | Rating: 0 ]
- 160m/80m Receiving Loop antenna
- Going High-Q and High-Tech with the RX Loop at AC0C
[ Hits: 658 | Votes: 2 | Rating: 8.5 ]
- 160m - 80m Receiving Loop
- Going High-Q and High-Tech with the RX Loop at AC0C
[ Hits: 689 | Votes: 1 | Rating: 8 ]
- Double Half-Delta Loop RX Antenna
- This wire antenna was developed to offer for a small, low-band, ground independent directional receiving antenna, it requires only two support poles. It is basically composed by two interconnected half delta loops and is better than a single flag or EWE, and almost as good as two phased EWE in the same space.
[ Hits: 939 | Votes: 0 | Rating: 0 ]
- Mini Whip Antenna
- An Active antenna designed for VLF and shortwave radio reception. A small antenna capable of excellent performances on low bands, made on a copper plate and introductio to active antennas.
[ Hits: 2284 | Votes: 2 | Rating: 6.5 ]
- Phasing of two identical antennas
- Phased Spaced Active Whips and Broadband Loops by WA1ION
[ Hits: 401 | Votes: 1 | Rating: 2 ]
- Gieskieng Antenna
- This antenna is a result of experimental work of D. H. Gieskieng, W0FK, a narrow monoband antenna, that needs only two support poles and require limited space, needs only 61 ft. for 160 meters band.
[ Hits: 685 | Votes: 0 | Rating: 0 ]
- The Yagi-Uda Antenna
- An interesting presentation on history and characteristics of Yagi-UDA antennas
[ Hits: 654 | Votes: 0 | Rating: 0 ]
- NJ2X.COM - Adventure in Amateur Radio
- NJ2X is a licensed amateur radio operator (FCC Amateur Extra) who enjoys casting electromagnetic waves into the ether. NJ2X pursues many aspects of the hobby including chasing DX, participating in mini-DX expeditions, building equipment and antennas, and papering his shack walls with ARRL awards. NJ2X dedicates this amateur radio oriented site to helping others who also enjoy the greatest of scientific hobbies. The site is suitable for all readers - families, the young, and the young at heart.
[ Hits: 297 | Votes: 2 | Rating: 10 ]
- Antenna Relay and distributor Box project
- Have you problem with your RG cables ? This page describes a smart antenna box using an RG-cathode for 3 antennas. The remote control needs just a simple wire and the GND for remote-control
[ Hits: 1317 | Votes: 2 | Rating: 1 ]
- Arduino automated antenna switch
- This Arduino project decode ICOM CAT frequency information and switch antennas according to preset values. RX and TX antennas can even be different, a project by ON7EQ
[ Hits: 3009 | Votes: 4 | Rating: 9.75 ]
- WiFi SWR meter
- An home made SWR meter for 2.4 GHz.
A DIY SWR meter that allow precise measurements and calibration of any WiFi antenna. This is test equipment everyone who build wifi antennas should have in their shack. Article is in french and include some videos.
[ Hits: 1699 | Votes: 10 | Rating: 4.9 ]
- Antenna Scope
- Do you want to measure antenna impedance at resonance? With
this Antenna Scope, you have a simple RF Bridge for getting
started in an exciting part of Ham Radio, building your
own Antennas that work well
[ Hits: 832 | Votes: 1 | Rating: 1 ]
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