rf antenna367 links - and 1 categories
Antennas : 10M
- Multiband Cubical Quads
- EI7BA Multiband Cubical Quads projects, includes two elements quad antennas for 10 12 15 17 20 meters band. Performance considerations, detailed pictures and construction notes.
[ Hits: 7543 | Votes: 5 | Rating: 9.40 ]
- RF in shack with vertical and longwire antennas
- Why a vertical antenna or longwire antenna might require a balun
[ Hits: 4574 | Votes: 5 | Rating: 7.60 ]
- The Bazooka vertical
- This is a deviation from the wonderful antenna the Double Bazooka. The Vertical Bazooka, is made entirely from RG-8U coaxial cable.
[ Hits: 33889 | Votes: 28 | Rating: 7.71 ]
- A 16 Turn S-Band Helix
- This design represents the smallest practical antenna for Oscar-13 mode-S. Perfect beacon reception at all times is possible, and acceptable SSB even at 43,000 km range.
[ Hits: 8694 | Votes: 4 | Rating: 7.50 ]
- 13 cm Helix Antenna
- Here is the design of a 2.4 GHz antenna that is ideal for amateur satellite communications. This antenna is easy to assemble because the design itself tolerates inaccuracies in the construction without really affecting performance.
[ Hits: 63945 | Votes: 73 | Rating: 5.83 ]
- A Horn Antenna for 2.4 GHz.
- This Antenna is not really practical for AO-40 reception, but horn antennas have a number of qualities useful in microwave antenna testing and noise figure measurements.
[ Hits: 10713 | Votes: 32 | Rating: 3.82 ]
- The full-wave loop antenna
- These omnidirectional antennas offer Horizontal polarization, and about 2.1 dbd of gain. They are much quieter than a dipole or a vertical, have a broader bandwidth and will usually out perform a dipole antenna.
[ Hits: 4855 | Votes: 4 | Rating: 6.50 ]
- Loop Antenna Design
- Full-wave loops are very popular antennas. They are especially useful on 80 and 40 meters where they perform well at modest heights
[ Hits: 2171 | Votes: 1 | Rating: 10.00 ]
- Portable HF antennas
- Excel sheet containing technical comparisons of commercial HF portable antennas compiled by ON4SKY. Includes pictures, manufacturer, db gain, band coverage, F/B ratio, price, weight and dimensions.
[ Hits: 2776 | Votes: 1 | Rating: 10.00 ]
- Assembly of the Lightningbolt Quad
- One of the best antenna values on the market is the LightningBolt Quad. At about half the cost of a tri-band yagi, you get five band coverage with a single coax feedline and excellent performance from a light, low wind load antenna.
[ Hits: 3514 | Votes: 10 | Rating: 6.80 ]
- A Modern Thermocouple Ammeter
- Thermocouple ammeters are very rare these days, but the job they were perfect for - measuring antenna currents - is still a modern requirement especially in respect to groundplane currents. By David A. Reid PA3HBB G0BZF
[ Hits: 2683 | Votes: 2 | Rating: 6.00 ]
- High Performance Wire Antennas
- Popularity doesn't guarantee high antenna performance, disadvantages of trap antennas
[ Hits: 2629 | Votes: 1 | Rating: 10.00 ]
- EZ Hang
- The perfect tool when you want to put up a wire antenna easily, quickly and safely! EZ HANG can be used to "shoot" a line over a tree or other object over 100 feet high
[ Hits: 3176 | Votes: 2 | Rating: 10.00 ]
- SAT-Service Schneider
- Digital radio mondiale DRM products, measuring tools, Magnetic field probes, RF power meters, Broadband loop antennas, DRM devices and services
[ Hits: 701 | Votes: 0 | Rating: 0.00 ]
- Kiwa Electronics
- Kiwa Electronics is a company that specializes in accessory equipment for the radio enthusiast. Our products include Filter Modules to improve receiver performance, a High Performance Medium Wave Air Core Loop Antenna for improved broadcast band reception, the Pocket Loop Antenna, the Earth Monitor, BCB Rejection Filter and Broadband and SW Preamps. We also offer numerous performance upgrades for popular receivers.
[ Hits: 2794 | Votes: 4 | Rating: 8.50 ]
- Supply high quality accessories for your ham shack, including Band Decoders, various types of Antenna Switches, Antenna Stacking devices, special devices designed for the SO2R operator, USB Interfaces, Digital Mode Interfaces, Keyers and many others
[ Hits: 1838 | Votes: 2 | Rating: 10.00 ]
- National RF, Inc.
- National rf provides consulting engineer services, and manufactures direction finding antennas, test equipment, communications receiving equipment and adjuncts, satellite antennas, voice amplification and audio equipment.
[ Hits: 661 | Votes: 0 | Rating: 0.00 ]
- DDS Data-Communicatie
- Dds data- communication Data and Tele-Communication Solutions: UMTS GSM GPRS Telemetry programmers Adeunis RF systems, antennas, radio transmission modules, oscilloscopes GPS and coax cables dealer in Holland
[ Hits: 871 | Votes: 0 | Rating: 0.00 ]
- Ham radio dealer based in germany offer RF power amplifiers, from Alpin and SPE, antennas, RFI suppression products and GSM GPRS products
[ Hits: 10485 | Votes: 6 | Rating: 7.50 ]
- RadioLabs - Radio, Wireless and Beyond
- Specialize in engineering, design and repair of all rf equipment. Dealer for two way radios, scanners, shortwave radios, wi-fi antennas, wifi amplifiers. Based in Fortuna, California.
[ Hits: 687 | Votes: 5 | Rating: 5.80 ]
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