low noise antenna
18 links
- 160 meter low noise antennas experiments
- VE7CA experiments on 160 meters band antennas, looking for better performances on reception.
[ Hits: 3056 | Votes: 1 | Rating: 1 ]
- 160m Short Vertical Loft Antenna
- This is a very small vertical 160m antenna that fits in the loft of even my small house. It was built as a way of getting a signal out on 160m for local AM contacts, but the local noise level was far too high to allow it to be used at night for this purpose. However, on WSPR it did a pretty good job with WSPR spots from a very long way across Europe being received when running 2.5W out.
[ Hits: 207 | Votes: 1 | Rating: 7 ]
- LFA Yagi Antenna for 6 meter band
- This antenna is reported as being lower noise than conventional yagis and had a very low SWR for 500 KHz.
[ Hits: 199 | Votes: 3 | Rating: 7.33 ]
- PA0RDT Active Antenna
- Active antennas can be very useful, in particular they can help reduce local electrical noise by allowing the antenna to be installed in a corner of the garden well away from house wiring. The original PA0RDT antenna uses a very small patch for the antenna and relies on the antenna being installed quite high.
[ Hits: 307 | Votes: 0 | Rating: 0 ]
- Modern Beverage Receiving Antenna
- A helpful guide to building your own beverage-type low noise receiving antenna for broadband use. Easy, do-it-yourself suggestions to optimize directional performance, even if you lack a farm to put it on.
[ Hits: 1629 | Votes: 2 | Rating: 5 ]
- About The Beverage Antennas - Receiving Antennas
- An article about the Beverage antennas, super long wire receiving antennas thar are unidirectional and have a very low noise that makes this antenna excellent for low band dxing. By Thomas R. Sundstrom W2XQ, 73, June 1981, 73 Magazine
[ Hits: 185 | Votes: 1 | Rating: 10 ]
- T2FD, The Forgotten Antenna
- The terminated tilted, folded dipole T2FD is a little known antenna that performs excellently. Compact in size compared to a half-wave dipole the T2FD provides signal gain, wide frequency coverage, and exceptionally low noise characteristics.
[ Hits: 4884 | Votes: 3 | Rating: 8.33 ]
- Common mode currents
- Common mode currents can flow in all sorts of systems, not just antenna feed lines. This article explain how Common mode noise can be isolated from the desired signal
[ Hits: 316 | Votes: 1 | Rating: 8 ]
- A Small Wire Loop Antennas for 160 meters
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- Low noise, receive only coax loop antennas for 160 - 10 meters HF bands
[ Hits: 49334 | Votes: 10 | Rating: 6.5 ]
- The K6STI Receiving Loop
- This relatively unknown antenna does an amazing job pulling weak low band signals out of man-made noise backgrounds
[ Hits: 2926 | Votes: 8 | Rating: 7.12 ]
- 160/80m Coaxial Receiving Loop Antennas
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- Receiving loop antenna for top band. This antenna allow to reduce noise on both bands. The stand alone 80m loop is approximately four feet in diameter. And made of light weight material. Which makes it ideal for portable use or you can mount it above a pre-existing vhf antenna, and due to it's small size it is quite rotatable.
[ Hits: 65097 | Votes: 61 | Rating: 5.89 ]
- Flags and Pennants
- Excellent low-noise receive antennas originated by EA3VY and optimized for 160 meters by K6SE
[ Hits: 2415 | Votes: 2 | Rating: 1.5 ]
- Low Noise Antenna Connection
- Reducing noise to your antenna can gain your aerial performance, learn how.
[ Hits: 7573 | Votes: 2 | Rating: 6 ]
- SSB Electronic USA
- manufactures and distributes HF, VHF, UHF and SHF equipment covering 10MHz. - 47.0GHz. Our products include: Wireless LAN / WAN Bidirectional Linear Amplifiers, Low Noise Preamplifiers - LNA's, RF Linear Amplifiers, Relays, Transverter Systems, Frequency Translation Systems, Downconverters, Antennas, Parabolic Dishes, Coaxial Cable, Relays, Antenna Switches, Microwave Test equipment, PC controlled Receivers, Microwave Linear Amplifiers including models for Telemetry, Wireless, and CDMA applications.
[ Hits: 8401 | Votes: 8 | Rating: 6.12 ]
- K0BG's ham radio mobile operator web site
- This site is dedicated to mobile amateur radio operators, old and new alike. Whether you are into HF, or VHF operation, I trust the information presented will increase your enjoyment of our great hobby.
With safety as a byword, there are articles on amplifiers, antennas, bonding, impedance matching, installing hardware, mobile equipment, noise and RFI abatement, wiring, and much more. I do my best to keep these articles up to date, and easy to follow.
[ Hits: 4855 | Votes: 10 | Rating: 8.7 ]
- Propagation on 630 Meters and 2200 Meters
- This is a theoretical look at propagation on 630-Meters and 2200-Meters using ray tracing software. It expands on the brief discussion in the ARRL Handbooks.
The Earth's magnetic field affects 630-Meter and 2200-Meter band propagation. Lower ionization reduces absorption, aiding low-frequency propagation. Differences exist between bands, limited daytime sky-wave propagation. Sunrise/sunset show promise, yet mechanisms are unclear. Ducting possible at night in specific conditions. Negative ions enhance propagation. Inefficient antennas and high man-made noise are anticipated. Groundwave propagation is significant on 2200-Meters.
[ Hits: 36 | Votes: 1 | Rating: 10 ]
- Hamtech
- HAM-made engineering products supplies and produces coaxial relays, antenna switches, sequencers, roller inductors, variable capacitors, low noise preamplifiers, RF power rotary switches and coil bodies.
[ Hits: 191 | Votes: 0 | Rating: 0 ]
- UHF Low Noise Antenna pre-amp
- Low Noise Antenna pre-amp for SAT, EME & DX-ing
[ Hits: 2329 | Votes: 2 | Rating: 2 ]
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