quarter
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Antennas : 20M : 20 meter Vertical Antennas- The ground image vertical antenna
- A 20 meter quarter wave vertical antenna by jerry sevick W2FMI QST Article
[ Hits: 5923 | Votes: 4 | Rating: 7.25 ]
- 2-Element-Yagis for HF
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- 2-Element parasitic Yagis for the Shortwave-Bands 10-12-15-17-20-30m. The antennas are feeded with the DK7ZB-match. A quarter-wave choke of coax is grounded at the socket.
[ Hits: 50047 | Votes: 146 | Rating: 7.08 ]
- 80 meters Short Dipole
- The best antenna is the simple Dipole. If you have height, you even can put up a quarter wave vertical or an inverted, but sometimes you may need shorten version by 4S7NR
[ Hits: 15835 | Votes: 9 | Rating: 3.33 ]
- Quarter Wave GP Antenna Calculator
- Amateur quarter wave ground plane antenna calculator, calculate vertical and radial length
[ Hits: 4842 | Votes: 24 | Rating: 6.04 ]
- A 1:1 Coaxial Balun
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- PDF article about a coaxial 1:1 balun, original concept by I4BBE using a quarter-wavelength and the three-quarter-wave adapting sections with the 50-Ohm coaxial cable by I0QM
[ Hits: 44472 | Votes: 30 | Rating: 7.22 ]
- The quarter wave transformer
- A transient analysis of an inpedance transforming device, by W9DMK, in pdf format
[ Hits: 1005 | Votes: 1 | Rating: 1 ]
- Making a half wave coax cable
- How to make a half l or quarter l coax cable for a specific frequency
[ Hits: 1428 | Votes: 2 | Rating: 5.5 ]
- T-Hunting Antennas
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- 4 Element Cubical Quad, Yagis, LZA Circular Quad, Shrunken Quad , quarter wave, J-Pole, beam mounting , changing polarity
[ Hits: 29360 | Votes: 26 | Rating: 5.01 ]
- Wireman-J-Poles for 2m-40m
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- J-Poles with Wireman-cables for the quarterwave matching section, working on VHF and HF bands
[ Hits: 27083 | Votes: 252 | Rating: 8.37 ]
- The Lattin 5 Band antenna
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- The antenna was named for W4JRW who invented it and holds a patent on the basic principle and uses quarter wave stubs, 80, 40, 20, 15 and 10 meter bands
[ Hits: 25660 | Votes: 14 | Rating: 7.43 ]
- Quarter Wire to Copper Tube Slim-Jim
- K0GKJ project of a copper tube slim jim antenna for two meter band
[ Hits: 1068 | Votes: 0 | Rating: 0 ]
- Quarter Wave Verticals
- One of the most useful antennas in the repertoire is the Marconi or quarter wave grounded vertical antenna. Its invention made it possible to halve the length of antennas, simplifying communications, especially at HF and below.
[ Hits: 1760 | Votes: 2 | Rating: 7 ]
- ITU official web site
- The ITU, headquartered in Geneva, Switzerland is an international organization within which governments and the private sector coordinate global telecom networks and services.
[ Hits: 1201 | Votes: 2 | Rating: 5.5 ]
- Radio Society of Great Britain
- The Headquarters site for the RSGB - representing UK amateur radio. News - Book Shop - Information.
[ Hits: 2457 | Votes: 2 | Rating: 5.5 ]
- the Quarter Century Wireless Association
- Wild Rose Chapter 151 - Alberta
[ Hits: 366 | Votes: 0 | Rating: 0 ]
- Fred Hammond Chapter 73 QCWA
- Chapter 73 fred hammond chapter of the quarter century wireless association
[ Hits: 279 | Votes: 0 | Rating: 0 ]
- Rabbit Radio Club
- Headquartered in Thousand Oaks, California
[ Hits: 950 | Votes: 1 | Rating: 1 ]
- Michigan Amateur Radio Alliance
- We publish a quarterly newsletter, hold Field Day,Public service events and still provide Morse Code classes on our repeater W8USA 145.230
[ Hits: 1177 | Votes: 4 | Rating: 3.75 ]
- Amateur Television Quarterly
- Publication for the video aspects of ham radio
[ Hits: 3629 | Votes: 4 | Rating: 8.75 ]
- PSK08 - G4JNT
- PSK08 Software for the 56002EVM.
PSK08 is a data communications mode identical in operation to PSK31, but operating at one quarter the speed, ie. approximately 8 symbols per second. Direct download link to psk08.zip file.
[ Hits: 735 | Votes: 0 | Rating: 0 ]
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