antenna
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Antennas : 10M- Mobile Antennas for 10 Meters
- Interesting article on mobile antennas by Cebik, W4RNL
[ Hits: 6644 | Votes: 4 | Rating: 3.5 ]
- DK7ZB-5-Band-Quad
- 2 element Quand antenna for 10 - 12 - 15 -17 - 20 meters band
[ Hits: 10904 | Votes: 10 | Rating: 7.61 ]
- Ground System on a 160M vertical
- Ground system measurements on a 160 M vertical by
Rudy Severns N6LF
[ Hits: 1913 | Votes: 1 | Rating: 10 ]
- A Lowband Antenna that is Almost Free
- The Shunt-fed Tower, an effective Low Band Antenna, uses your beam as a capacitive top-hat and only needs a simple feed network and a good ground system to work DX on 80M and 160M.
[ Hits: 18750 | Votes: 4 | Rating: 7.75 ]
- 20m T-Monopole
- 20m T-Monopole short vertical antenna for 20 meters by AA5TB
[ Hits: 12206 | Votes: 6 | Rating: 8.33 ]
- 2 Elements HB9CV
- 2 meters band HB9CV antenna
[ Hits: 22558 | Votes: 71 | Rating: 5.61 ]
- A turnstile antenna for 2-meter ARDF
- Antenna design for use with hidden transmitters on international-rules ARDF events
[ Hits: 18219 | Votes: 25 | Rating: 7.49 ]
- 300 ohm twinlead 40 meter dipole
- The N2CKH travel special 300 Ohm ladder line convertable antenna
[ Hits: 8578 | Votes: 3 | Rating: 5.67 ]
- HF Home made Balun
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- A balun is a device that is used at the feedpoint of a balanced antenna when an unbalanced feedline is desired to feed the antenna. Balun is a contraction for BALanced to UNbalanced.
[ Hits: 39400 | Votes: 30 | Rating: 5.91 ]
- How to make an end-fed antenna work
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- Here is a sure fire way to make end-fed halfwave antennas fed with a 50 ohm coupler work - without long radials, grounds, chokes, voodoo.
[ Hits: 43964 | Votes: 30 | Rating: 6.71 ]
- End-Fed Halfwave Antenna
- The end-fed halfwave antenna is a resonant half wavelength long antenna like a dipole antenna except for it is fed at its end rather then in the center. This antenna is as old as radio and is probably best known as the Zepp Antenna
[ Hits: 24212 | Votes: 18 | Rating: 7.55 ]
- Feeding the Beast
- Transferring Radio Frequency Energy from Your Transmitter to Your Antenna by Don Keith N4KC
[ Hits: 522 | Votes: 1 | Rating: 10 ]
- A two dollar helical hf portable antenna
- Here is an easily transportable vertical antenna for 20 meters collapsible to 4 feet that costs about $2.00 to make.
This was created as a fun project to demonstrate how to enjoy operating HF in the field with a home-made portable antenna without spending a ton of money.
Bev AH6NF (YL) made this antenna, tuned and ready to operate in less than one hour
[ Hits: 22388 | Votes: 14 | Rating: 7.65 ]
- QFH antenna for weather satellite band
- This article describes how to make a quadrifilar helix (QFH) antenna easily, from inexpensive materials: uPVC plumbing pipe and RG-58U co-axial cable
[ Hits: 4217 | Votes: 16 | Rating: 5.25 ]
- Handi-Tenna portable satellite antenna
- Here is a high-performance hand-held beam antenna that is easy to build and guaranteed to improve your downlink from the LEO satellites over ANY rubber duck or mobile whip
[ Hits: 13277 | Votes: 7 | Rating: 7.37 ]
- IK-STIC 2 vertical multiband antenna
- The IK-STIC 2 is a vertical, all band, antenna that is over 25 feet tall yet weighs under 5 pounds.
Based on a telescopic pipe or a fiberglass fishing pole, using a tuner it can easily cover the amateur radio HF bands from 40 - 10 Meters
[ Hits: 4845 | Votes: 6 | Rating: 5.17 ]
- The Gallery of the EME Arrays.
- A Collection of EME Reflector Antennas and YAGI Arrays.
[ Hits: 552 | Votes: 0 | Rating: 0 ]
- Bicycle-Mobile antenna
- WA5FRF VHF mobile antenna for bicycle installation
[ Hits: 6045 | Votes: 2 | Rating: 9.5 ]
- A low power 3.5MHz ARDF transmitter
- This low power transmitter is developed for ARDF exercising purposes but of course can be used as super QRP transmitter either. With 1 or 2 meter wire as antenna and a ARDF receiver with ferrite-rod antenna the range is about 100m but with better antennas and a 'real' receiver the range is probably much larger.
[ Hits: 2044 | Votes: 4 | Rating: 6.5 ]
- AA5TB Antenna Coupler / SWR Bridge
- Wire antennas requires a special coupling network to properly couple my 50 ohm coax to the antenna's high impedance (5000 ohms)
[ Hits: 4751 | Votes: 2 | Rating: 9.5 ]
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