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multi

597 links - and 6 categories

Antennas : 40M : 40 meter Vertical Antennas
  • Stealth Multiband Vertical  pop - A vertical antenna for 40 and 80 meters band, using a telescoping fiberglass fishing pole.
    [ Hits: 52672 | Votes: 17 | Rating: 5.59 ]
Antennas : CobWeb
  • CobWeb multiband folded dipole - The cobweb antenna it is basically a 5 band antenna comprising of 5 full half wave dipoles for each band - between 10 meters and 20 meters, the antenna is also resonant on 6M and can be modeled even for VHF frequencies.
    [ Hits: 8620 | Votes: 0 | Rating: 0 ]
Antennas : Dipole
  • Wire antenna with coaxial cable traps - This multiband antenna 10-80 meters is a home made project by I1BAY. Has been used for SOTA activations with great results. Traps are done with coax cable turns, dimensions are in the attached schema.
    [ Hits: 9250 | Votes: 3 | Rating: 7 ]
Antennas : Feed Lines
  • Band Filters - Experience of band filters, for a contest multi operator enviroenment
    [ Hits: 4071 | Votes: 6 | Rating: 7.5 ]
Antennas : Stealth
  • The Notebook Antenna - the multiband Notebook Antenna, so called because the entire antenna will fit easily inside a 1" thick 3-ring binder
    [ Hits: 4800 | Votes: 5 | Rating: 6.2 ]
Antennas : Traps
  • Building Coaxial Traps - This page describes the design and construction materials W8WWV used to build a coaxial cable trap. A coaxial cable trap is a parallel resonant circuit that is usually inserted in an antenna element to enable multiband operation.
    [ Hits: 10267 | Votes: 5 | Rating: 8.2 ]
  • Multi Band Antenna Traps - These devices are called Traps, but they are actually more like frequency sensitive switches. They are parallel resonant, high Q, tuned circuits which provide a very high impedance at their frequency of resonance.
    [ Hits: 4850 | Votes: 3 | Rating: 6 ]
Antennas : Tuners Antennas : ZS6BKW
  • The ZS6BKW Multiband HF Antenna - Antenna design from ZS6BKW (G0GSF), similar to the G5RV, but it actually resonates on five bands It's only 90 ft long 27.51 m, with a 40 ft 12.2 m downlead
    [ Hits: 6505 | Votes: 8 | Rating: 6.88 ]
DX Resources : Contest : Contest Stations DX Resources : QSL manager
  • ON6DP QSL-Manager-Database - Qsl manager database files to download in multiple formats along to IOTA reference and other utilities
    [ Hits: 974 | Votes: 6 | Rating: 3 ]
Ham Radio : Clubs : Contest Clubs
  • W2SZ/1 - Mount Greylock Expeditionary Force VHF/UHF Multiop Contesting Page
    [ Hits: 275 | Votes: 3 | Rating: 7 ]
Ham Radio : Clubs : North America : USA : California
  • Calnet Repeater Group - Calnet a multi repeater amateur radio system serving most of California and parts of Nevada. The Calnet system consists of numerous fulltime linked 440 MHz repeaters connecting San Diego to San Francisco and Lake Tahoe.
    [ Hits: 1311 | Votes: 2 | Rating: 7.5 ]
Manufacturers : Accessories
  • CommsAudit - Commsaudit uk, i/q quadrature , hf receivers, rf, multicoupler, multicouplers, switch matrix, antenna matrices, masthead amplifier,, vhf receiver, uhf,
    [ Hits: 604 | Votes: 9 | Rating: 8.45 ]
Operating Modes : Digital Voice
  • FDMDV - Digital Voice - FDMDV - Frequency Division Multiplex Digital Voice Digital Audio over HF SSB. FDMDV is the latest digital voice mode on HF - it caters to high quality digital voice under poor band conditions, in only 1100Hz bandwidth
    [ Hits: 5517 | Votes: 6 | Rating: 7.83 ]
Shortwave Radio : SWL Resources
  • NDB Weblog - Many NDB radio enthusiasts publish their reception logs on the web. A completely separate system designed for individual listeners to make their own logs and obtain statistics on NDBs, DGPS and now Navtex Stations they have received. Log listings can be exported in a multitude of formats and then emailed to the NDB List
    [ Hits: 1454 | Votes: 3 | Rating: 9.67 ]
Software : DSP
  • Linrad - Multiplatoform freeware DSP software. Linrad has its origin in software that was developed for 144 MHz EME CW but it is quite general and should be seen more like a kit for designing a receiver that a receiver for some particular usage. It can be used as a CW receiver with a small time delay and a fast waterfall graph. A dsp for conventional receiver to imporve signals readability, a spectrum analyzer.
    [ Hits: 9978 | Votes: 18 | Rating: 7.46 ]
Software : Logging
  • HAM-LOG by HB9CQV - This program is freeware for ham radio purpose only, multilingual german and english, self running, runs also from USB devices
    [ Hits: 2619 | Votes: 6 | Rating: 8.17 ]
  • Ham Office - Professional multi funcion software for ham radio use. Mainlu a logging program with mapping functions, dx cluster module, label printing, award managements, exporting features and more. Currently only in german
    [ Hits: 2263 | Votes: 5 | Rating: 5.8 ]

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