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492 links and 9 categories about frequency on dxzone.com

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 Site listings
Antennas : 40M
  • ZMV Spiral antennas - An experimental antenna similar to the TAK spiral antenna was evaluated for SWR response over the frequency range of 7.0 to 7.3 MHz, or the 40-meter band.
    [ Hits: 2587 | Votes: 6 | Rating: 4.83 ]
Antennas : Homebrewing Techniques
  • Yagi Antenna Elements Boom Correction - Dragoslav Dobricic, YU1AW antennex article on influence of Boom on frequency performance and how compensate it
    [ Hits: 481 | Votes: 1 | Rating: 2.00 ]
DX Resources : Beacons : Beacon stations
  • Beacon Station MO 189.5 KHz - This site is dedicated to experimental low frequency operation in the 160 to 190 kHz spectrum. LF beacon MO is no longer active. This page is retained only for reference information.
    [ Hits: 179 | Votes: 0 | Rating: 0.00 ]
Manufacturers : Antennas : Broadcast
  • TCI International - US global provider of innovative radio frequency (RF) solutions for spectrum monitoring and antenna applications. Specializes in Spectrum Monitoring, Communications Intelligence , HF/MF Broadcasting & Communication antenna systems.
    [ Hits: 264 | Votes: 0 | Rating: 0.00 ]
  • ASC Signal - Global manufacturer of Satellite Earth Station, Air Traffic Control Radar Antenna and High Frequency Antenna products for broadcast, government and enterprise satellite communication applications.
    [ Hits: 579 | Votes: 2 | Rating: 8.00 ]
Manufacturers : Electronic Components
  • Taiyo Yuden - Ceramic capacitors, inductor ferrite products, high frequency dielectric components like chip antenna and filters.
    [ Hits: 117 | Votes: 0 | Rating: 0.00 ]
Operating Aids : Radio Spectrum Operating Modes : Amateur Radio Astronomy
  • Wavelab - Multi-frequency radio interferometers
    [ Hits: 326 | Votes: 0 | Rating: 0.00 ]
Radio Equipment : HF Transceivers : Icom IC-7000
  • IC-7000 Expand TX - MARS CAP Modification to extend transmit frequency coveragefor the IC-7000
    [ Hits: 4102 | Votes: 18 | Rating: 3.06 ]
Radio Equipment : HF Transceivers : Ten-Tec Orion Radio Equipment : HF Transceivers : Yaesu FT-450
  • FT-450 Mars Mods - Mars Mod for Yaesu FT-450 extending frequency range: 1.8-30 MHz
    [ Hits: 6019 | Votes: 13 | Rating: 4.92 ]
Radio Equipment : VHF-UHF Handhelds : Yaesu VX-170
  • Yaesu VX170 Mod - Extend VX-170 frequency range on Yaesu VX-170
    [ Hits: 539 | Votes: 0 | Rating: 0.00 ]
Radio Scanning
  • Global Frequency Database - Frequencies from all over the world. 25000+ total records, 4600+ records feature exact GPS locations.
    [ Hits: 4054 | Votes: 162 | Rating: 6.54 ]
Radio Scanning : Scanner Frequencies
  • National Scanner Frequency Guide - List of scanner frequencies used in the US for emergency or inter-agency communications, allocated nationally.
    [ Hits: 252 | Votes: 2 | Rating: 7.50 ]
Software : Circuit Design
  • Ansoft Designer - Sesign-management environment and circuit simulator for radio frequency (RF) and microwave hardware development
    [ Hits: 751 | Votes: 4 | Rating: 2.75 ]
Software : Grid Bearing and Maps
  • Radio Works - RadioWORKS is a tool for calculating various items related to radio waves and radio wave propagation. Get detailed information about a frequency, such as the free-space wavelength, band classification, propagation methods, common transmitter configurations, etc. Calculate antenna lengths or frequencies. View a 3D coverage map by providing a latitude / longitude coordinate and transmitter height.
    [ Hits: 2274 | Votes: 3 | Rating: 3.00 ]
Software : Radio Control
  • RadioComm - RadioComm can be used to program your Icom radio's memory, or to create nice radio-frequency spectra or to interface your radio to a huge database of frequencies.
    [ Hits: 849 | Votes: 3 | Rating: 10.00 ]
  • HamPort - A Free windows, universal program for RIG control, can read and set mode and frequency on your transceiver. The program can control ICOM, Yaesu and Kenwood transceivers, by DXSoft
    [ Hits: 2045 | Votes: 0 | Rating: 0.00 ]
Technical Reference : Beacon keyers
  • VersaBeacon Project - The VersaBeacon is a frequency agile, modulation agile RF source using a DDS chip and minimal support circuitry. It covers a frequency span of 1MHz to 150MHz in 1 Hz steps and provides a variety of modulations
    [ Hits: 349 | Votes: 0 | Rating: 0.00 ]
Technical Reference : Filters
  • W3LPL Receiving Bandpass Filters - Project of receive only filters optimized for minimal loss and very high rejection of frequencies below 75% of the filter center frequency by K1TTT
    [ Hits: 715 | Votes: 0 | Rating: 0.00 ]
Technical Reference : Frequency Counter Technical Reference : Homebrew
  • 75 meter AM Transceiver - Frequency coverage: 3.75 MHz to 4.00 MH transceiver for 75 MHz band
    [ Hits: 826 | Votes: 1 | Rating: 10.00 ]
Technical Reference : QRP Projects : QRP CW Transceiver
  • The Rock-Mite CW Kit - The Rock-Mite is a 40m CW kit offered by Small Wonder Labs . It features built-in keyer, direct conversion receiver with a crystal RF bandpass filter, 500 milliwatts of power, and switchable frequency offsets to work around QRM
    [ Hits: 900 | Votes: 0 | Rating: 0.00 ]
Technical Reference : Test Equipment
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