tri band

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tri band

137 links - and 3 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 Loop Antennas Antennas : 40M : 40 meter Vertical Antennas
  • A 40m Vertical - This antenna is intended as a simple, inexpensive solution for the newcomer to experiment across the 40m band (7.0-7.2MHz) when only restricted space is available
    [ Hits: 10383 | Votes: 5 | Rating: 2.8 ]
Antennas : Multiband
  • Picture of a multiband dipole  pop - Pictures of a multiband dipole, build with simple PVC T and standard electrical wire
    [ Hits: 41082 | Votes: 25 | Rating: 4.77 ]
Antennas : Portable
  • A tri-band 2 element portable Yagi - HF Wire Yagi antenna with notes and eznec file on original article of a Portable 3-Band Yagi antenna for 10-15-20 meter band made with wire elements. Include link the original to QST article.
    [ Hits: 15048 | Votes: 4 | Rating: 7 ]
  • 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 ]
Antennas : Quad
  • Assembly of the Lightningbolt Quad - One of the best antenna values on the market is the LightningBolt Quad. At about half the cost of a tri-band yagi, you get five band coverage with a single coax feedline and excellent performance from a light, low wind load antenna.
    [ Hits: 3748 | Votes: 10 | Rating: 6.8 ]
Antennas : VHF UHF
  • VHF/UHF Yagi Antenna Design  pop - Design your VHF UHF Yagi antenna online, a JavaScript enhanced web page that implements the design of an antenna for 2m and 70cm bands. This page offers a streamlined experience for Yagi antenna design enthusiasts. It assumes prior knowledge of Yagi design principles, minimizing distractions with a user-friendly interface. Equipped with essential equations, it provides instant design feedback. Red font warnings indicate design limitations, ensuring practical results. Constraints include Gain (11.8-21.6 dBd) and Boom Length (2.2-39 wavelengths), with additional frequency-dependent restrictions noted in input fields.
    [ Hits: 147401 | Votes: 1105 | Rating: 6.95 ]
CB Radio : Clubs
  • Radio Scanner Citizen's Band DX Group - RadioScanner (Radio Sierra) russian citizens band radio club. Most operators are from CIS countries in Europe and Asia.
    [ Hits: 460 | Votes: 4 | Rating: 6.75 ]
CB Radio : Personal Pages
  • 45SD105 Vlada - Personal web site of a freebander, info on 11m digital modes, pictures of antenna projects
    [ Hits: 728 | Votes: 2 | Rating: 7.5 ]
DX Resources : DX Foundations
  • GDXF - German DX Foundation - The German DX Foundation (GDXF), founded in 1996, was established to support HF DX activities - on all bands or modes - to rare countries all over the world
    [ Hits: 1161 | Votes: 10 | Rating: 6.6 ]
Ham Radio : Band Plans Manufacturers : Amplifiers
  • Discovery Power Amplifiers - The Discovery series of amplifiers are designed and built in the UK by Linear Amp UK Ltd, one of the world's leading amplifier manufacturers, specializing in high power RF tube amplifiers. The amplifiers use large GS31 or GS35 ceramic triode tubes. Band coverage 6m, 2m and 70 cms
    [ Hits: 3036 | Votes: 2 | Rating: 4 ]
Manufacturers : Antennas : HF : Yagi Antennas
  • DXBeam - Located in France, DXBeam designs and manufactures a range of monoband, dual band and triband antennas, rotary dipoles, Moxons and Yagis
    [ Hits: 2717 | Votes: 11 | Rating: 2.64 ]
Manufacturers : Antennas : VHF UHF Microwave : Satellite antennas
  • Austin Antenna - Austin Antenna employs leading-edge antenna technology in the production of the highest performance antennas currently available. Marine Antenna, Multi-band Mobile, Point-to-Point, Base Station, Wide-band Land Based, LPDA, Linear Omni, Triplexer, Scanner Antennas
    [ Hits: 4138 | Votes: 7 | Rating: 8.43 ]
Manufacturers : Test Equipment : Spectrum Analyzers
  • Trilithic - Broadband instruments, R and microwave components and filters, field analyzers, spectrum analyzers
    [ Hits: 570 | Votes: 0 | Rating: 0 ]
Operating Modes : Stealth Amateur Radio
  • HF Antennas for restricted space - Arrl document about invisible antennas and indoor systems. It is important to consider that few compromise antennas are capable of delivering the performance one can expect from the full-size variety. But the patient and skillful operator can often do as well as some fellows who are equipped with high power and full-size antennas. The "cliff-dweller" may not be able to "bore a hole" in the band as often, and as easily, but DX can be worked successfully when band conditions are suitable.
    [ Hits: 9187 | Votes: 7 | Rating: 5.28 ]
Software : Decoders
  • DTMF decoder - A very easy to use program to decode DTMF dial tones found on telephone lines with touch tone phones. The DTMF Decoder is also used for receiving data transmissions over the air in amateur radio frequency bands.
    [ Hits: 7943 | Votes: 14 | Rating: 4.79 ]
Technical Reference : Radio Frequency Interference : BPL
  • Broadband news : another bpl trial dropped - The company trialing the technology has decided BPL was not "commercially deployable," and has instead decided to focus on wireless mesh networking in the region
    [ Hits: 367 | Votes: 0 | Rating: 0 ]
  • NOJCG BPL tutorial - Tutorial about broadband over power line and the new FCC rules restricting how it can be deployed.
    [ Hits: 682 | Votes: 0 | Rating: 0 ]

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