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Antennas : Loop
  • Multiband Horizontal Loop Antenna - An 80 Mx Horizontal Loop Antenna which also operates on all higher HF Amateur bands including the WARC bands. It has very good performance and is easy to build by VK5SW
    [ Hits: 1923 | Votes: 15 | Rating: 9.01 ]
Antique Radios : Repair and Restoration
  • TubeRadioDoc - Vintage Tube Radio's from Germany for sale. High class restorations for all valve radios offered. Radio Brands like Saba, NordMende, Majestic, Grundig, Zenith, Philco and more. TubeRadioDoc Vintage Audio Store
    [ Hits: 489 | Votes: 2 | Rating: 9 ]
DX Resources : Beacons
  • NCDXF/IARU Beacon Project - The NCDXF, in cooperation with the IARU, constructed and operates a worldwide network of high-frequency radio beacons on 14.100, 18.110, 21.150, 24.930, and 28.200 megaHertz. These beacons help both amateur and commercial high-frequency radio users assess the current condition of the ionosphere
    [ Hits: 1332 | Votes: 4 | Rating: 8.5 ]
DX Resources : Beacons : Beacon stations
  • WA8YWO - High Frequency Expermental Beacon "WV". The Beacon operates on the frequency of 13.55567mhz. This Beacon is very low power. It operates under Part 15 of the FCC Rules and Regulations. It transmits with only 1.5 milliwatts of power
    [ Hits: 409 | Votes: 0 | Rating: 0 ]
Ham Radio : Clubs : North America : Canada : Alberta
  • Mackenzie Highway Network - The Mackenzie Regional ARC currently Operates the VE6PRR (146.82- ) repeater. It's located approximately 15 Km North of Peace River. It is linked to the SARA system via Grande Prairie. We are currently in the process of expanding the coverage by adding number of repeater sites through out the area.
    [ Hits: 334 | Votes: 0 | Rating: 0 ]
Ham Radio : Clubs : North America : USA : Pennsylvania
  • WA3TVG The Laurel Highlands VHF Society - The Laurel Highlands VHF Society, Inc. owns and operates the Acme repeater, located on the Chestnut Ridge in southwestern Pennsylvania.
    [ Hits: 294 | Votes: 0 | Rating: 0 ]
Manufacturers : Antenna Parts : Fiberglass tubing
  • Acmetex - Acmetex Group Company is a leading integrated manufacture of high temperature textiles in China. Fiberglass products.
    [ Hits: 596 | Votes: 2 | Rating: 8.5 ]
Operating Modes : Morse code
  • Iambic Keying - Iambic Keying, Debunking the Myth by Marshall G. Emm, N1FN. A keying system controls transmitter activation, ranging from basic switches to electronic keyers that generate Morse code based on paddle input. Iambic keyers, introduced in the late 1950s, respond to simultaneous paddle closures with alternating dots and dashes. Despite touted efficiency, actual benefits are modest, offering about a 5% improvement in keystrokes, diminishing at higher speeds. Iambic keying's practical value is limited and may restrict sending speeds.
    [ Hits: 625 | Votes: 0 | Rating: 0 ]
Propagation : MUF Indicators
  • Near-Real-Time F2-Layer Critical Frequency Map - This map can be used to determine the frequencies that will always be returned to the Earth. Transmitted frequencies higher than the indicated contours (which are given in MHz) may penetrate the ionosphere, resulting in lost power to space. The map shows the radio auroral zones as green bands near the northern and southern poles.
    [ Hits: 5270 | Votes: 24 | Rating: 4.84 ]
Radio Scanning : Weather
  • HRPT - NOAA HRPT - High Rate Picture Transmission, the main source of high quality data from polar orbiting meteorological satellites
    [ Hits: 663 | Votes: 0 | Rating: 0 ]
Shopping and Services : Scanner stores
  • Kent Communications Inc. - Our goal is to provide the Highest Quality Products and Competent Technical Services at very competitive rates to the Telecommunications and Recreational Industries.
    [ Hits: 741 | Votes: 3 | Rating: 10 ]
Software : Contesting
  • miLog - Highly integrated Logging, DXing, Contesting and Station Control Software, commercial version, run under windows 2000 or higher.
    [ Hits: 1594 | Votes: 8 | Rating: 8.5 ]
  • Contest LogChecker - Contest LogChecker is a set of contest tools for Microsoft Windows, combining advanced text editing with keyword highlighted, and the ease and flexibility of import, export, statistics and charting utilities. With LogChecker you can edit, fill in the log, check Cabrillo Format and Header, convert files from the most popular logging software to Cabrillo, print customizable files, calculate statistics and export logs to RTF, PDF or HTML for publishing. You can examine a log in many different ways by highly interactive methods. LogChecker includes a Master Callsign Database tool for managing databases, which have been generated from actual contest logs. Commercial
    [ Hits: 3332 | Votes: 23 | Rating: 9.07 ]
Software : DSP
  • SignalGen - SignalGen is a free (GPL) Linux (Xwindows GUI-based) utility that generates relatively low frequency signals with the use of a PC sound card. It is an entirely suitable replacement for a hardware signal generator if one doesn't require signals of a frequency higher than about 50 KHz. SignalGen creates any frequency between a fraction of one Hertz and an upper limit determined by your sound card's capabilities.
    [ Hits: 1832 | Votes: 2 | Rating: 10 ]
Software : Linux
  • Grig Radio Control  pop - Grig is a freeware simple Ham Radio control (CAT) program based on the Ham Radio Control Libraries (Hamlib). It is intended to be highly generic presenting the user to the same graphical user interface regardless of which radio is being controlled. Grig supports the most commonly used CAT commands that are implemented by Hamlib, and integrates well with other ham radio programs like Xlog and gMFSK. Grig has been developed on Linux, but has been ported on Mac and Windows OS.
    [ Hits: 26656 | Votes: 17 | Rating: 6.12 ]
Software : Software Defined Radio
  • SDR Sharp - SDR# (read SDR Sharp) is a high performance Software Defined Radio application. SDR sharp is a fully featured SDR capable of handling samplerates from kHz level soundcards up to multi hundred MHz dedicated samplers, thanks to its multi-core architecture.
    [ Hits: 2442 | Votes: 8 | Rating: 7.5 ]
Technical Reference : Amplifiers
  • A low cost 600 watt ultra-linear amplifier  pop - This compact little amplifier is the brain-child of Pat Murdoch, ZL1AXB, in Auckland, New Zealand. It is only 11" wide, 4" high, and 9" deep. Operates for 40, 20, 17, 15, 12, and 10m
    [ Hits: 32110 | Votes: 27 | Rating: 6.67 ]
Technical Reference : Antenna Rotator
  • Antenna elevator system for amateur satellites - Smart homebrew antenna-ELEVATOR system with linear actuator. The actuator is a cheap and heavy tool with high enough torque, ideal for elevation systems, but in practice it needs quite an effort in order to operate correctly in your homebrew antenna system. This page inform you of the actuator's secrets.
    [ Hits: 22311 | Votes: 44 | Rating: 7.66 ]
Technical Reference : Components
  • Accurate Inductance Calculator - This page allows you to calculate in the most accurate way high-Q inductor coils.
    [ Hits: 1154 | Votes: 3 | Rating: 6.33 ]
Technical Reference : RF Design
  • Frequency Multipliers - An exaustive document on frequency multipliers with a particular attention on ways to generate high frequency signals for microwave
    [ Hits: 385 | Votes: 0 | Rating: 0 ]

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