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493 links and 9 categories about frequency on dxzone.com

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 Site listings
Antennas : Receiving Ham Radio : Band Plans
  • Ham Bands - Simplified U.S. frequency allocations table by K8ZT
    [ Hits: 5384 | Votes: 19 | Rating: 5.95 ]
Ham Radio : Clubs : North America : USA : Arizona
  • Arizona Spectrum Management Association - This is the site for the Arizona Spectrum Management Association. This group is a frequency coordination group for the Arizona and the Tri-State Area
    [ Hits: 156 | Votes: 1 | Rating: 1.00 ]
Manufacturers : Amplifiers
  • Microset - Power supplies, rf power amplifiers, dummy loads, frequency counters, repeaters antennas manufacturer based in Italy
    [ Hits: 1474 | Votes: 1 | Rating: 1.00 ]
Manufacturers : Antennas : VHF UHF Microwave
  • Tecom - Tecom industries product line encompasses a wide range of highly sensitive active and passive antennas for use in airborne and ground applications, providing complete coverage of the 20 MHz to 40 GHz frequency range.
    [ Hits: 206 | Votes: 0 | Rating: 0.00 ]
Manufacturers : QRP Kits
  • LCD Digital Dial DDS VFO - N3ZI KITS: Low Cost Frequency Counter and DDS-VFO kits
    [ Hits: 1603 | Votes: 5 | Rating: 5.40 ]
Operating Aids : Radio Spectrum
  • Satellite Frequency List - List of satellite frequencies from HT to VHF and UHF
    [ Hits: 2514 | Votes: 58 | Rating: 4.27 ]
Operating Modes : Satellites Operating Modes : Weak Signal
  • MFSK16 - An MFSKMulti-Frequency Shift keying DX Mode. A new weak signal DX mode for Radio Amateurs, employing M-ary FSK, phase continous tones and convolutional coded FEC.
    [ Hits: 202 | Votes: 0 | Rating: 0.00 ]
Propagation
  • WSPRnet Weak Signal Propagation Reporter Network - A group of amateur radio operators using K1JT's MEPT_JT digital mode to probe radio frequency propagation conditions using very low power transmissions. Computer sent/received Morse signals received by amateurs and collected on an online database.
    [ Hits: 690 | Votes: 2 | Rating: 10.00 ]
Radio Equipment : HF Transceivers : Yaesu FT-817
  • PorkControl for Yaesu FT-817ND - PorkControl is a Java-based software controller for the Yaesu FT-817ND (and older FT-817) HAM transceiver. It is currently in beta and released under the GNU GPL v2 on Windows, Linux and MAC OSX. PorkControl is used to control frequency and other features without using the fiddly controls on the unit itself. It also supports automatic radio control to access repeaters based on the UK Repeater List.
    [ Hits: 1778 | Votes: 1 | Rating: 8.00 ]
Radio Equipment : HF Transceivers : Yaesu FT-857 Radio Scanning : Regional : Europe Shopping and Services : Kits and Components
  • LCD Digital Dial DDS VFO - Low Cost frequency counters and DDS VFO's for QRP and Vintage Radio's. LCD Digital Display, Frequency Counter or DDS VFO
    [ Hits: 571 | Votes: 2 | Rating: 5.50 ]
Software : Antenna analysis
  • Microwave Antenna Design Calculator - Available to run on all major operating systems, this free calculator provides quick estimation of antenna size required for a given gain and frequency.
    [ Hits: 940 | Votes: 2 | Rating: 9.00 ]
Software : Signal Generator
  • SimJT - SimJT is a simulation program. It generates audio-frequency JT65 and CW signals in a background of gaussian white noise, with user-specified signal-to-noise ratio.
    [ Hits: 1919 | Votes: 2 | Rating: 1.50 ]
Software : Time
  • QSO Clock - little program for those that can never find a pencil when we hear the DX station calling CQ on the frequency on which we're tuned up.
    [ Hits: 726 | Votes: 0 | Rating: 0.00 ]
Technical Reference : Audio Technical Reference : Calculators
  • Resonant Frequency Calculator - This web based application will compute circuit values required for an L-C circuit to resonate at given frequency. Also it will compute the resonant frequency if given values for L and C.
    [ Hits: 1447 | Votes: 7 | Rating: 5.57 ]
Technical Reference : Frequency Counter Technical Reference : Homebrew
  • Frequency Locked Loop VFO for HF - A device which joins in a single microprocessor a digital programmable frequency meter and a control logic capable to lock a manually tuned VFO to its actual frequency by IK3OIL
    [ Hits: 1242 | Votes: 3 | Rating: 7.33 ]
Technical Reference : RF Safety Technical Reference : Radio Frequency Interference : Noise Reduction
  • Noise tutorials - Noise foundamentals. Radio frequency interference noise.
    [ Hits: 373 | Votes: 0 | Rating: 0.00 ]
  • Calculating the Received RF Noise Power - Voacap, high-frequency ionospheric communications analysis and prediction
    [ Hits: 237 | Votes: 1 | Rating: 6.00 ]
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