3 band

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3 band

839 links - and 5 categories

Antennas : 17M Antennas : 20M : 20 meter Dipole Antennas
  • An effective 3 band Wire DX aerial - A 3 band dipole for 10 15 and 20 meters band, easy to build, and that can be easily setup in any occasion, inclunding field days or portable operations
    [ Hits: 13435 | Votes: 5 | Rating: 6.4 ]
Antennas : 40M : 40 meter Dipole Antennas Antennas : 40M : 40 meter Vertical Antennas Antennas : Log Periodic Antennas : Magnetic Loop
  • 1.8 to 21 Mhz Magnetic Loop antenna - Magnetic loops are a compromise antenna and performance will be down on a full size-wire antenna particurlarly on lower HF Bands. This article compare this magnetic loop with a full-sized wire antenna on 80 meters by VK3YE
    [ Hits: 13696 | Votes: 40 | Rating: 6.12 ]
Antennas : Multiband
  • W0OXB All-band Zep Antenna - W0OXB All-band Centerfed Zep Antenna 160m-6m
    [ Hits: 3479 | Votes: 15 | Rating: 7.27 ]
  • N3OX Multiband vertical - This vertical antenna consist of a 18 meters telescopic pole and allow operations from 160 to 30 meters band, project by Daniel Zimmerman N3OX
    [ Hits: 2093 | Votes: 1 | Rating: 8 ]
  • W3HH Multiband antenna - A french pdf file that explain how to build a T2FD antenna in all its parts including balun
    [ Hits: 2284 | Votes: 3 | Rating: 4.67 ]
  • Some plain facts about multiband vertical antennas - There is considerable confusion as to what exactly a multiband vertical antenna is. The confusion concerns the method of feed, how much mismatch one can expect, how many radials are required, how the particular antenna is built for multiband use, plus some other points.
    [ Hits: 1910 | Votes: 1 | Rating: 7 ]
  • Vertical antenna for Vacation - Vertical Vacation Antenna for 80, 40 and 20 Meter-Band, by Herbert OE3BMB This antenna is a full size λ/4 for 20m and 40m band, and a shortened λ/4 for the 80m band. Generally on the 40m band the SWR is under 1,6. In 80m and 20m band at the resonant frequency the SWR is about 1,1.
    [ Hits: 5034 | Votes: 4 | Rating: 8 ]
  • A Stealthy HF Coat Hanger Antenna - A multiband stealth antenna. Tuner is required. The antenna is made from a $15, 500 ft roll of black #14 insulated stranded wire, about 120 small black wire ties, and maybe 30 or so large black wire ties.
    [ Hits: 7401 | Votes: 5 | Rating: 9.4 ]
Antennas : Portable
  • Pedestrian mobile HF antenna - This antenna allow transmission and reception on all bands between 7Mhz and 28 Mhz. Similar in concept to the Miracle Whip by VK3YE
    [ Hits: 2702 | Votes: 2 | Rating: 6 ]
  • Short Whip Antenna Tuner - Here is a circuit that will resonate a short whip antenna for the HF Bands.
    [ Hits: 5862 | Votes: 3 | Rating: 4 ]
Antennas : Satellite
  • Double Lazy H 435 MHz 10,8 dBd antenna - Drawings and pictures of compact antenna for 70cm band by LY2SS
    [ Hits: 2686 | Votes: 8 | Rating: 5.76 ]
  • 2400 MHz Helix Antenna - This antenna is easy to build and suitable for broadband work, satellite work and terrestrial work.
    [ Hits: 8806 | Votes: 8 | Rating: 7.5 ]
Ham Radio : Band Plans
  • US Band Plan by ICOM - ICOM USA Amateur Radio HF VHF/UHF band plan updated to 2008, include a Common Country prefixes in PDF Format
    [ Hits: 3767 | Votes: 9 | Rating: 6 ]
Manufacturers : Antennas : VHF UHF Microwave
  • Duplexers.eu - We produce duplex filters for 6 m, 2 m, 70 cm, and 23 cm band but also for HF bands. Sella and produce products for Ham Radio Repeaters.
    [ Hits: 1899 | Votes: 1 | Rating: 1 ]
Operating Aids : Beginner's Guides Technical Reference : Amplifiers : VHF Amplifiers
  • 50 Mhz solid state 600W amplifier - G3WZT John Matthews project of a 600 Watt solid state linear amplifier for the 6 meters band
    [ Hits: 2176 | Votes: 0 | Rating: 0 ]

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