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767 links - and 1 categories

28 MHz 3 elements Yagi - OZ2OE Technical pages, a 3 element 28 MHz light weight Yagi for 10 meters band
[ Hits: 5572 | Votes: 8 | Rating: 4.37 ]

Invisible DX antenna for the low bands - Article by DK5WL describes a multi-band DX antenna for the 160m-40m amateur radio bands with low visibility but great performance for long distance communication.
[ Hits: 7008 | Votes: 8 | Rating: 6 ]

7 element Yagi for 20 Meters band - A 7 elements yagi beam monoband antenna for 14 Mhz by VE3GK
[ Hits: 3211 | Votes: 4 | Rating: 4.5 ]

Vertical Antenna For 40- 80-160 Meters - The basic antenna is a vertical monopole, using elevated radials to complete the ground plane by k5oe
[ Hits: 4298 | Votes: 6 | Rating: 6 ]

4 element yagi for 6 meters - Project plan for a 4 element yagi beam for 50 Mhz
[ Hits: 2188 | Votes: 5 | Rating: 3.2 ]

Les baluns - About different baluns types. Samples and schematics for several ratios baluns in french
[ Hits: 1667 | Votes: 0 | Rating: 0 ]

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: 3398 | Votes: 1 | Rating: 8 ]
Half-Square antennas - This doubet antenna is a half wave dipole antenna easy to build, in french
[ Hits: 2939 | Votes: 2 | Rating: 1 ]

Building the G3TXQ Hex Beam - This site provides guidelines to build a G3TXQ broad band hex beam R.F. antenna for the five amateur radio bands, 20, 17, 15, 12 and 10 meters. The G3TXQ broad band hex beam is a new development and actually easier to build than the classic hexbeam by K4KIO
[ Hits: 4258 | Votes: 6 | Rating: 8.17 ]

Why Are Antennas Built to Look Like They Do? - Basic anctenna theory, general information on antennas
[ Hits: 421 | Votes: 0 | Rating: 0 ]

MFJ-940 modification - The MFJ-940 VERSA TUNER II is a useful little antenna tuner for the HF-bands. However it suffers from a minor design error, which can be easily rectified.
[ Hits: 2647 | Votes: 2 | Rating: 7.5 ]

Windom antenna by PU1LHP - Project of a windom multiband antenna for 10 to 80 meters in portuguese
[ Hits: 3375 | Votes: 13 | Rating: 6.69 ]

C30P Beacon - Amateur radio station c31lj andorra 28.256 MHz
[ Hits: 354 | Votes: 0 | Rating: 0 ]
VA3GRR - Radio Beacon - VA3GRR is a radio beacon, operating on the 10 meter amateur band. Its frequency is 28.205.5 MHz. It runs just under 5 watts of power into a vertical half-wave ringo style antenna
[ Hits: 476 | Votes: 1 | Rating: 10 ]

VU2IIA -Ham Radio & NOAA - Ham Radio & NOAA Apt Weather Satellite blog. All weather satellite NOAA APT images are decoded with homebrew receiver. Setup using homebrew Turnstile Cross Dipole antenna, P-3 500MHZ PC with WIN-XP & WXTOIMG program.
[ Hits: 1120 | Votes: 4 | Rating: 10 ]

Sardinia QRP Club - A QRP association of amateur radio operators based in Sardinia Island Italy
[ Hits: 856 | Votes: 1 | Rating: 10 ]

DICL - Customized Power Supply - Design and manufacture switching power supply for global customers in many field , such as industry , medical , radio , telecome
[ Hits: 667 | Votes: 0 | Rating: 0 ]

Radio Equipment : HF Transceivers : Kenwood TS-850

Kenwood TS-850S Mods - Collection of modifications notes for the Kenwood TS850
[ Hits: 2668 | Votes: 2 | Rating: 6 ]

BeamFinder - BeamFinder is a software tool designed to conduct analyses for radio amateurs interested in radio propagation studies. It provides a large 2500 x 1800 pixel screen map of the world which displays calculated results from sophisticated models, dx data and other sources of information
[ Hits: 2455 | Votes: 1 | Rating: 10 ]