all band rf

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all band rf

67 links - and 1 categories

Antennas : 20M
  • W5GI Mystery Antenna  pop - W5GI Mystery Antenna is a multi-band wire antenna that performs exceptionally well even though it confounds antenna modeling software. This antenna covers 80 to 6 meters with low feed point impedance and will work with most radios, with or without an antenna tuner. It is approximately 100 feet long, can handle the legal limit, and is easy and inexpensive to build. It is similar to a G5RV but a much better performer especially on 20 meters.
    [ Hits: 139316 | Votes: 123 | Rating: 7.55 ]
Antennas : G5RV
  • G5RV multi-band antenna - Multi-band centre-fed antenna capable of very efficient operation on all HF bands, specifically designed with dimensions which allow it to be installed in gardens and other open spaces which accommodate a reasonably-straight run of 31.1m (102 ft) for the flat-top standard model.
    [ Hits: 7302 | Votes: 8 | Rating: 7.38 ]
Antennas : Helical
  • A 16 Turn S-Band Helix - This design represents the smallest practical antenna for Oscar-13 mode-S. Perfect beacon reception at all times is possible, and acceptable SSB even at 43,000 km range.
    [ Hits: 8906 | Votes: 4 | Rating: 7.5 ]
Antennas : HexBeam
  • Hex Beam by K4KIO - This site provides guidelines to build a G3TXQ broad band hex beam RF antenna for the 5 ham radio bands, 20, 17, 15, 12 and 10 meters. The G3TXQ hex beam is a new development and actually easier to build than the classic hexbeam.
    [ Hits: 6725 | Votes: 13 | Rating: 8.77 ]
Antennas : J-Pole
  • The DBJ-2 portable J-Pole - A Portable VHF-UHF Roll-up J-pole Antennam that resonates on both bands but actually performs as a half wave radiator on both bands
    [ Hits: 4334 | Votes: 4 | Rating: 7 ]
Antennas : Loop
  • The full-wave loop antenna - These omnidirectional antennas offer Horizontal polarization, and about 2.1 dbd of gain. They are much quieter than a dipole or a vertical, have a broader bandwidth and will usually out perform a dipole antenna.
    [ Hits: 5052 | Votes: 4 | Rating: 6.5 ]
Antennas : Magnetic Loop Antennas : Mobile
  • Inexpensive GPS mobile Antenna - An inexpensive external GPS antenna, for 1.5 GHz band for GPS receiver, If you operate APRS or just need an external antenna for your GPS receiver, here's one that is easy to build yet offers surprisingly good performance in a compact size. Best of all, it uses commonly available components and materials.
    [ Hits: 14379 | Votes: 9 | Rating: 6.67 ]
Antennas : Multiband
  • 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 ]
  • W0OXB All-band Zep Antenna - W0OXB All-band Centerfed Zep Antenna 160m-6m
    [ Hits: 3479 | Votes: 15 | Rating: 7.27 ]
Antennas : Portable
  • HB9MTN C-Pole Porable antenna - A vertical monoband that's small, light and portable, needs no counterpoise and performs as well as a home antenna
    [ Hits: 4139 | Votes: 7 | Rating: 8.43 ]
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 ]
Ham Radio : Band Plans
  • ARRL: US Band Plan - Includes a downlodable colorfull or b/w US Band Plan in PDF Format
    [ Hits: 23058 | Votes: 35 | Rating: 5.52 ]
Manufacturers : Antennas : HF : Yagi Antennas
  • Spiderbeam antennas  pop - High Performance Lightweight Antennas. The spider beam is a full size lightweight tribander yagi for 20/15/10m, made from fiberglass and wire. It has been specially developed as a highly efficient antenna for dx-pedition and portable use.
    [ Hits: 40695 | Votes: 27 | Rating: 6.71 ]
Manufacturers : Transceivers
  • QRP LABS - The QRPLABS series of single band QRP CW tranceiver kits are high performance CW tranceivers with easy operating features, small size and light weight.
    [ Hits: 3351 | Votes: 3 | Rating: 6.67 ]
Operating Modes : 50 Mhz
  • Eliminate QRM from 6 meters band - The circuit described below will substantially reduce or completely eliminate interference from almost any local source whilst leaving the wanted signal relatively unaffected, even though it may be on the same frequencey by TREVOR, G3ZYY
    [ Hits: 1567 | Votes: 1 | Rating: 10 ]
Operating Modes : Amtor
  • About AMTOR - AmTOR may be considered as the next development from RTTY. AmTOR was introduced to overcome the problems with RTTY. As a result of its performance, it has become popular on the HF bands because it gives more reliable communication, especially when interference is present. It achieves this by using a coding system that allows errors to be detected and corrected.
    [ Hits: 363 | Votes: 0 | Rating: 0 ]
Operating Modes : Digital Modes
  • Sights and Sounds of Digital Signals - Preview the waterfall signature of various digital signals and listen to the sound of the digital modes. Learn about the bandwidth requirements and why a linear transmitter path is critical to successful and correct use of many modes on the amateur bands by W1HKJ
    [ Hits: 1042 | Votes: 3 | Rating: 6.67 ]
Technical Reference : Amplifiers : HF Amplifiers
  • 11 KW Linear amplifier by I0JX - Use 4CX10000D / 8171, RF output power of 11 KW in key-down carrier on all bands. Power was measured with a Bird 4712 wattmeter and a 25 KW slug
    [ Hits: 24607 | Votes: 33 | Rating: 7.86 ]
Technical Reference : Test Equipment
  • Rainbow Antenna Analyzer - A small and inexpensive measurement device designed to determine antenna performance across the amateur bands through use of automatically collected SWR readings
    [ Hits: 6760 | Votes: 7 | Rating: 5.57 ]

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