Search Results for "rf antenna"326 links
Antennas : Active
- The PA0RDT Mini-Whip
- An active receiving antenna for 10 KHz to 20 MHz, a very small sized antenna with excellent performances in noise to signal ratio.
[ Hits: 537 | Votes: 6 | Rating: 7.00 ]
- Improving Surface Wave Antennas
- Making the Short dual wire Beverage better by Jeff Smith VE1ZAC
[ Hits: 95 | Votes: 0 | Rating: 0.00 ]
- Full Wave Delta Loop at Low Height
- Article using a full wave delta loop antenna at low height, feeding methods, performance reports on 1984 QST article by W1FB and W1SE
[ Hits: 555 | Votes: 2 | Rating: 5.00 ]
- Rotary Dipole for 10m 15m 20m
- A simple beam antenna offering good performances on 3 bands by 9m2mso
[ Hits: 557 | Votes: 1 | Rating: 10.00 ]
- An Effective Fan Dipole HF Antenna System
- This antenna consists of one or more dipoles with a common coaxial feeder and a 1:1 balun choke to ensure that no RF travels down the outside of the co-ax screen
[ Hits: 374 | Votes: 1 | Rating: 7.00 ]
- Antenna feed impedance
- Article on antenna feed impedance and the importance of matching RF andtennas to feeders, including notes on Radiation resistance, loss resistance, and efficiency are also detailed.
[ Hits: 147 | Votes: 1 | Rating: 10.00 ]
- Common-mode chokes
- Chart that present results of impedance measurements made on a variety of common-mode choke implementations across the frequency range 1MHz to 30MHz by G3TXQ
[ Hits: 218 | Votes: 0 | Rating: 0.00 ]
- Unwanted RF in the shack
- How to make your own CMC Common Mode Current choke and where to place in your antenna feed-line.
[ Hits: 147 | Votes: 1 | Rating: 10.00 ]
- Broadband Hex Beam Performance
- Performance data of the KIO Hexagonal Beam antenna
[ Hits: 235 | Votes: 1 | Rating: 1.00 ]
- Horn Antenna dimensions
- Antenna design for Horn Antennas
[ Hits: 200 | Votes: 1 | Rating: 2.00 ]
- Multiband Horizontal Loop Antenna
- An 80 Mx Horizontal Loop Antenna which also operates on all higher HF Amateur bands including the WARC bands. It has very good performance and is easy to build by VK5SW
[ Hits: 893 | Votes: 10 | Rating: 8.70 ]
- PA3EGU Magnetic Loop
- Magnetic Loop antenna for 20 to 80 meters band using home made butterfly condensator kit
[ Hits: 476 | Votes: 1 | Rating: 1.00 ]
- Portable Magnetic Loop Antenna
- A portable magneti loop antenna project made with coax cable by WW3WW. This kind of antenna is the perfect solution for those who live in places where is not possible to setup antennas on the roof.
[ Hits: 694 | Votes: 1 | Rating: 1.00 ]
- The CJU Sat Antenna
- KD8KSB realization of the CJU satellite antenna that allow similar performance to the arrow antennas.
[ Hits: 381 | Votes: 0 | Rating: 0.00 ]
- 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: 1126 | Votes: 2 | Rating: 6.50 ]
- RF Measurement on W3EDP antenna
- RF Current measurements on a Long Wire W3EDP antenna
[ Hits: 272 | Votes: 1 | Rating: 1.00 ]
- G8JNJ Broadband HF Vertical Antenna
- Broadband HF Vertical antenna which does not require a tuner, and which is capable of providing reasonable performance on all bands from 7MHz to 28MHz
[ Hits: 585 | Votes: 0 | Rating: 0.00 ]
- Doublet vs dipole for 20m
- Comparing perfomances of two antennas using WSPR reporting system
[ Hits: 249 | Votes: 1 | Rating: 10.00 ]
- VU2NAN Nandu
- Homebrew Antennas, Transmitters, Receivers, Converters, Keyers and SWR/RF Current Indicators with photographs an excellent blog with many projects by VU2NAN
[ Hits: 94 | Votes: 2 | Rating: 9.00 ]
- Perfect Quad Antennas
- Perfect Quad Co,Ltd japanese ham radio quad antenna manufacturer
[ Hits: 173 | Votes: 0 | Rating: 0.00 ]
- Manufacture remote control interfaces to manage several kind of ham radio transceivers, Antenna rotators and antenna switches. Control can be done using smartphone Apps or from Computers.
[ Hits: 62 | Votes: 0 | Rating: 0.00 ]
- HexBeam vs SpiderBeam
- In these slides, differences between spiderbeam antenna and hexbeam antennas are explained comparing performances and measurements.
[ Hits: 1088 | Votes: 3 | Rating: 7.00 ]
- Arduino MFJ tuner control
- An Arduino uno based project to control an MFJ 998 antenna tuner via Icom CI-V interface by VE1ZAC
[ Hits: 221 | Votes: 0 | Rating: 0.00 ]
- Arduino Rotator Controller
- Aduino-based Amateur Radio Antenna Rotator Controller that can emulate the Yaesu GS-232A or GS-232B interface by K3NG
[ Hits: 138 | Votes: 1 | Rating: 10.00 ]
- RF Problems and the HF Vertical Antenna
- Are you having RF problems in the shack since you put up your HF vertical antenna? This is a common problem with an easy solution.
[ Hits: 613 | Votes: 3 | Rating: 6.33 ]
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