l matching105 links
Antennas : 15M
- 21 mhz half wave GP Antenna
- 21 mhz half wave ant -very low radiation angle - full size and light weight- all coax matching system - decoupling care to prevent low angle radiation degrade
[ Hits: 2660 | Votes: 5 | Rating: 2.40 ]
- 50MHz J-Pole Antenna
- Need a general purpose antenna on the magic band? The J-Pole is an easy-to-build and inexpensive device that provides an omni-directional vertically polarised antenna without the need for a ground plane. In technical terms, it is an end fed vertical 1/2 wave which is fed via a 1/4 wave matching stub.
[ Hits: 32883 | Votes: 14 | Rating: 6.50 ]
- End fed halfwave antenna and matching unit
- One is an EFHWA for 20-40 meters, and the other is a matching unit for the antenna by n0lx
[ Hits: 9943 | Votes: 5 | Rating: 5.40 ]
- K7TJO copper pipe hentenna
[ Hits: 4750 | Votes: 9 | Rating: 7.88 ]
- Using Delta Matching on HF Beams
- Using delta match with HF antennas design
[ Hits: 5452 | Votes: 4 | Rating: 3.50 ]
- J-Pole theory
- The J-Pole antenna is an omnidirectional antenna that can be used for base, mobile and field day stations. It does not need a ground plane, radials or a complicated matching system. The J-Pole can be cheaply, simply and quickly constructed using a variety of techniques, some of which are discussed in this article.
[ Hits: 29821 | Votes: 25 | Rating: 6.74 ]
- Wireman-J-Poles for 2m-40m
- J-Poles with Wireman-cables for the quarterwave matching section, working on VHF and HF bands
[ Hits: 26069 | Votes: 226 | Rating: 8.30 ]
- Antenna system in a shopping trolley wally
- Multiband portable antenna system edited by Andy Foad G0FTD, consisting of an old cb antenna with it's 27Mhz matching coil, an antenna tuner, car battery and a transceiver
[ Hits: 1731 | Votes: 2 | Rating: 10.00 ]
- Broadband receiving antenna matching
- This article addresses the subject of obtaining the best signal transfer from an antenna to the
typical 50-ohm receiver input over a wide frequency range, with emphasis on medium-wave
(500 – 2000 kHz), encompassing the standard AM broadcast band and the 160-m amateur band.
[ Hits: 5891 | Votes: 4 | Rating: 6.00 ]
- Inductors used in antenna matching networks
- Article about variometers, helipot inductors, roller inductors, binary switched inductors, Coil and Capstan by G3YNH
[ Hits: 523 | Votes: 1 | Rating: 1.00 ]
- SWL antenna distribution system
- A methodology for connecting multiple LF/MF/HF receivers to a single antenna via readily available and inexpensive 75-ohm TV cable. Custom made baluns and splitters provide impedance matching and prevent interaction between receivers.
[ Hits: 1238 | Votes: 1 | Rating: 8.00 ]
- Quad or Loop antenna
- Information about quad and loop antennas, matching tips, differences on polarization and impedence by PA0FRI
[ Hits: 835 | Votes: 3 | Rating: 4.33 ]
- Omega and Gama Matching
- Article about omega and gamma matching, related to bandwidth, loss and component failures, heating and power ratings
[ Hits: 3052 | Votes: 3 | Rating: 7.00 ]
- 9 band vertical HF antenna by RW3XA
- Simple vertical radiator with matching box. No traps, no tuner required for this multiband antenna
[ Hits: 37101 | Votes: 42 | Rating: 7.42 ]
- 6m Half wave vertical
- This antenna is very useful for receiving or scanning purposes, but you can use it for transmitting, too. It is 2,94m long and has a pi-configuration (Collins-Filter) for the matching.
[ Hits: 3706 | Votes: 4 | Rating: 7.75 ]
- Erickson Engineering
- QRP SWL baluns and antenna matching transformers
[ Hits: 1873 | Votes: 1 | Rating: 10.00 ]
- 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: 4562 | Votes: 10 | Rating: 8.70 ]
- R7 Vertical Maintenance and Repair
- How repair the traps, and then homebrew the rest of the antenna, including the matching box
[ Hits: 4390 | Votes: 7 | Rating: 5.57 ]
- A smarter version of the Smith Chart program. It allows you to dynamically generate impedance point plots as you configure each design element of an impedance matching network. Has an extensive Help file with a Wizard that tells you what steps to take in designing a matching network for a given load impedance. Complete Windows installation kit by w9dmk
[ Hits: 1911 | Votes: 7 | Rating: 1.43 ]
- K1TTT Technical Reference
- Technical reference about Accessories, Amplifiers, Antennas, Cable and Connectors, Filters, Geography, Grounding, Gunk, Matching Networks, Projects, Propagation Info Radios, RFI/EMI, Rotors, Station Setup, Towers.
[ Hits: 4971 | Votes: 5 | Rating: 5.60 ]
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