3 band

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3 band

839 links - and 5 categories

Antennas : 17M
  • WARC 3 band dipole - A dipole antenna for 12 17 and 30 meters band
    [ Hits: 7316 | Votes: 10 | Rating: 4.5 ]
Antennas : 40M : 40 meter Vertical Antennas
  • 40m broadband vertical antenna - A loopy loop loaded vertical antenna operating range 7.0 to 7.3 MHz by S. C. Chuck Smith, WA7RAI
    [ Hits: 6567 | Votes: 15 | Rating: 7.52 ]
  • Backyard 7 Mhz Vertical - A vertical antenna for 40 meters band by PA5MW
    [ Hits: 1326 | Votes: 0 | Rating: 0 ]
Antennas : 6M : 6 meter Yagi Antennas Antennas : CobWeb
  • The Cobweb HF Antenna - The G3TPW Cobwebb antenna covers five bands, 14 - 28 mhz, including the WARC bands
    [ Hits: 6022 | Votes: 4 | Rating: 6.25 ]
Antennas : J-Pole
  • The DBJ-1 VHF-UHF Dual Band J-Pole - Searching for an inexpensive, high performance dual band base antenna for VHF and UHF ? Build a simple antenna that uses a single feed line for less than $10.
    [ Hits: 6277 | Votes: 5 | Rating: 6 ]
Antennas : Magnetic Loop
  • Magnetic loop for 30-10 M - A light and portable magnetic loop antenna with improved bandwidth and performance by HB9MTN
    [ Hits: 1719 | Votes: 0 | Rating: 0 ]
Antennas : Multiband
  • 6-Band Windom antenna  pop - Theory and construction of a novel trapless center-loaded off-center-fed (cl-ocf) dipole or windom antenna for the 80, 40, 30, 20, 15 and 10m hf amateur radio bands
    [ Hits: 50562 | Votes: 45 | Rating: 6.82 ]
  • What make the carolina windom so good - The off-center fed CAROLINA WINDOM provides outstanding performance on all bands. This includes all the WARC bands, 30, 17, and 12 meters.
    [ Hits: 6613 | Votes: 3 | Rating: 4.67 ]
Antennas : Tuners
  • LF MF Antenna Tuner - W5JGV antenna tuner for 150 - 500 Khz band
    [ Hits: 2853 | Votes: 2 | Rating: 8 ]
Antennas : Windom
  • Windom Antenna with 4:1 balun - The Windom is an Off-center wire multiband Antenna. The old version was fed just by a single-wire connected on 1/3 of antenna's overall length or with an open-line feeder (later versions). Here is another model with coaxial feeder, which is compatible with Solid States - 50 Ohm output transceivers .
    [ Hits: 8025 | Votes: 9 | Rating: 6.89 ]
Antennas : Wire
  • D3 Antenna for Field Day - D3+ High Performance Antennas for Field Day. This article describes versatile broadband wire antennas. These antennas will double your effective radiated power over a dipole, will be easy and inexpensive to build and install, and will be simple to match.
    [ Hits: 2639 | Votes: 7 | Rating: 4.86 ]
DX Resources : Beacons : Beacon stations
  • IZ3DVW/B - 40meter band beacon on 7,039.6 MHz
    [ Hits: 844 | Votes: 3 | Rating: 6 ]
Ham Radio : Band Plans
  • European 135.7 - 137.8 kHz Band Plan - This is not an officially recognized band plan for the European LF allocation between 135.7 and 137.800 kHz. This plan just contains my own observations and shall help the newcomer to get some orientation on where to find what.
    [ Hits: 1369 | Votes: 3 | Rating: 4 ]
Internet and Radio : WebSDR
  • HB9FX Internet Remote Base JN37XH Hochwacht Zofingen Switzerland - Online web receiver powered by OpenWebRX based in Switzerland. You can isten between 10kHz - 10GHz frequencies. Receiver is operated by HB9BHU Rig VLF/HF/VHF: Airspy HF+, Magnetic Loop/Discone Rig SHF X-Band LNB, RTL-SDR, Stacked Slot Antenna
    [ Hits: 14057 | Votes: 111 | Rating: 6.7 ]
Operating Aids : Awards
  • Russian VHF Trophy - For carrying out of bilateral QSOs on band of 2 meters, 70 and 23 centimeters all kinds of modulation. It is authorized to spend QSOs, using all kinds of passage: TROPO, ES, AURORA, MS, FAI, EME, IONO,
    [ Hits: 651 | Votes: 0 | Rating: 0 ]
Technical Reference : Duplexers
  • A low cost UHF/VHF duplexer - Duplexers for dual band radio are usually high pass filter and low pass filter combined in the same box. This circuit is a design within a cost of US$10.
    [ Hits: 8611 | Votes: 16 | Rating: 5.88 ]
Technical Reference : Filters
  • Narrow Band-Pass filter for HF - Band-pass filters can be critical components in competitive stations. This setup may help put your station on the map.
    [ Hits: 2560 | Votes: 1 | Rating: 1 ]
  • Clean Up Your Signals with Band-Pass Filters - These inexpensive, easily built filters can be the buffer you need between the signals you want to hear and send and those you don't!
    [ Hits: 3616 | Votes: 0 | Rating: 0 ]
Technical Reference : Transverters
  • C Band Transverter - C Band Transverter for 5668 - 434MHz
    [ Hits: 1592 | Votes: 0 | Rating: 0 ]

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