Search Results for "high impedance"13 links
- 11el 50MHz OWA Yagi
- A real Monster true OWA for 50Mhz with real serious performance. Constant impedance, supper low SWR, high gain and F/B and easy to build.
[ Hits: 392 | Votes: 0 | Rating: 0.00 ]
- High impedance baluns
- Introduction with some background on balun types
[ Hits: 736 | Votes: 0 | Rating: 0.00 ]
- Magnetic Long Wire UnUn 9:1
- An impedance transformer (9:1) to feed a high impedance long wire (~450 ohm), down to a 50 ohm unbalanced coaxial input.
[ Hits: 1608 | Votes: 2 | Rating: 4.50 ]
- 1:4 Current Balun
- This project is intended to aid in tuning a balanced antenna or feedline that has a high impedance 100-600 ohms by N5ESE
[ Hits: 2517 | Votes: 1 | Rating: 10.00 ]
- Eliminating TX RF Feedback Problems
- Malfunction of transceivers due to stray RF pickup is a common problem, especially when using end-fed antennas, high-impedance feedlines, or a poor ground counterpoise
[ Hits: 1711 | Votes: 1 | Rating: 1.00 ]
- From Transmitter to Antenna
- A collection of articles on the subject of impedance, impedance matching and high-frequency power transmission by G3YNH
[ Hits: 983 | Votes: 0 | Rating: 0.00 ]
- The Basics of Patch Antennas
- This article explores the basic concepts of patch antennas. Topics include principles of operation, impedance matching, radiation pattern, circular polarization, bandwidth, efficiency, alternative feed types, stacked patches and higher mode behavior.
[ Hits: 198 | Votes: 0 | Rating: 0.00 ]
- Multi Band Antenna Traps
- These devices are called Traps, but they are actually more like frequency sensitive switches. They are parallel resonant, high Q, tuned circuits which provide a very high impedance at their frequency of resonance.
[ Hits: 4555 | Votes: 3 | Rating: 6.00 ]
- High impedance amplifiers for shortened vertical antennas, Array matched and Optimized 15dB Preamplifier
[ Hits: 627 | Votes: 1 | Rating: 10.00 ]
- Messi e Paoloni
- High quality RF coax cables designed for ham radio use featuring high efficiency screening attenuation and transfer impedance.
[ Hits: 51 | Votes: 0 | Rating: 0.00 ]
- Bass EQ Pre Amp
- A Bass Eq Pre amplifier for high impedance PU by ON6MU
[ Hits: 250 | Votes: 0 | Rating: 0.00 ]
- 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: 4342 | Votes: 2 | Rating: 9.50 ]
- Tri-Mode Buffer Amplifier Box
- The TMB-1 is an RF amplifier unit / receiving accessory that can be used with a low-impedance broadband loop, a high-impedance terminated loop (such as a Pennant, Flag, or Kaz Delta), and whip (telescoping rod) antennas.
[ Hits: 765 | Votes: 1 | Rating: 1.00 ]
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