eme antenna
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Antennas : 2M- Portable 4-Element Quad for 2 meters
- A portable 4 elements quad antenna for 144 MHz, 9 to 10 DBd forward gain, 30 DB front-to-back ratio, and 33 DB front-to-side ratio
[ Hits: 2152 | Votes: 2 | Rating: 8 ]
- 100 grams VHF yagi
- A portable VHF home-made Yagi-Uda antenna, that is extremely easy to build and very cheap. Moreover this antenna, while dismounted is just 1 meter long, and the total weight is just 100 grams.
[ Hits: 2524 | Votes: 9 | Rating: 6 ]
- LFA Antenna for 40m by YO2MBU
- LFA 2 elements Loop Antennafor 40m by YO2MBU
[ Hits: 775 | Votes: 1 | Rating: 7 ]
- 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: 1011 | Votes: 20 | Rating: 7.25 ]
- Convert 40m 2-element to a Phased Drive Array
- This presentation details the work of converting a 40m 2-element reversible beam antenna into a phase-driven type of array
[ Hits: 877 | Votes: 1 | Rating: 2 ]
- Coil Winding Tips
- Tips on winding wire coils used as inductive loads, traps, band-pass filters, are implemented in a number of amateur radio projects especially antenna projects
[ Hits: 877 | Votes: 7 | Rating: 6 ]
- Open Sleeve Elements
- The construction principles for open-sleeve elements in antennas
[ Hits: 591 | Votes: 1 | Rating: 7 ]
- Noise Figure Measurement using Standard Antennas
- Measuring noise fiugre on the W2IMU horn and the dual-dipole-feed
[ Hits: 354 | Votes: 2 | Rating: 2 ]
- Full wave loop antennas
- Measurements for building a full wave loop using wire
[ Hits: 1120 | Votes: 1 | Rating: 3 ]
- Placement of a Mobile Antenna
- Basic guidelines for proper placement of an amateur radio mobile antenna
[ Hits: 718 | Votes: 1 | Rating: 10 ]
- 2 elements cubical quad for 20m to 10m
- Construction details and tests about a 2 elements cubical quad antenna for HF Bands (20,17,15,12 and 10m band).
[ Hits: 1662 | Votes: 7 | Rating: 4.43 ]
- N4TZE Quad for 6 meters
- Here is the N4TZE, 3 element, 6 meter quad antenna This antenna is tuned to 50.130mhz
[ Hits: 795 | Votes: 1 | Rating: 3 ]
- Beta Match - Hairpin, Stub affecting the element
- The efficiency of Beta matched elements in antennas by K3BU
[ Hits: 1252 | Votes: 4 | Rating: 4.5 ]
- Two Element Phased Verticals
- Two 40 meter phased vertical antennas, project, pictures and description by W4NFR
[ Hits: 1156 | Votes: 2 | Rating: 6 ]
- 6 elements Yagi Antenna for 50 Meters
- YT1VP Yagi antenna for 6 meters
[ Hits: 532 | Votes: 3 | Rating: 2.67 ]
- 10 elements yagi for 50 MHz
- A homemade 10 element Yagi Beam Antenna for 50 Mhz by Rod Mackintosh, a NBS Yagi on a 13.2 metre boom.
[ Hits: 1038 | Votes: 3 | Rating: 7 ]
- Build your Yagi Antenna
- An article describing how to homebew a VHF 4 elements Yagi antenna.
[ Hits: 558 | Votes: 3 | Rating: 7.67 ]
- 20m 2 element Yagi
- 20m 2-element light-weight Yagi antenna
[ Hits: 2613 | Votes: 7 | Rating: 5.43 ]
- iPortable
- high-quality and unique Ham Radio equipment such as Radio Rack field communication boxes for Emergency or portable use, and Antenna Analyzers for HF and VHF 6 Meter Bands.
[ Hits: 494 | Votes: 0 | Rating: 0 ]
- HexBeam vs SpiderBeam
- In these slides, differences between spiderbeam antenna and hexbeam antennas are explained comparing performances and measurements.
[ Hits: 2021 | Votes: 4 | Rating: 7 ]
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