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Antennas : Satellite
  • Portable satellite antenna - A project for a portable antenna for amateur radio satellite reception, for 2 meters and 70 centimeters bands
    [ Hits: 3059 | Votes: 0 | Rating: 0 ]
Antennas : Yagi
  • Yagi-Uda Antenna - The Yagi-Uda antenna, information on basic design, project and measure of Yagi-Uda antenna, include free repository/sample of beam antenna.
    [ Hits: 1328 | Votes: 6 | Rating: 7.67 ]
Ham Radio : Clubs : North America : USA : Pennsylvania
  • The Anthracite Repeater Association - The ARA provides communications services to the area through its network of repeaters at the club site near Freeland PA
    [ Hits: 317 | Votes: 0 | Rating: 0 ]
Operating Modes : Ham Radio Balloons
  • Amsat FR - Ballon - Site dedicated to amateur radio ballooning
    [ Hits: 493 | Votes: 0 | Rating: 0 ]
Radio Equipment : HF Transceivers : Yaesu FT-817
  • WideBand for Yaesu 817 857 897  pop - Free Download of Widebander. This software will allow you to extended TX for the Yaesu FT 857 FT 817 FT 897 and reset back to standard factory defaults. Warining: this programs looks like not to be supported. Download and use it at your own risk.
    [ Hits: 41146 | Votes: 65 | Rating: 6.14 ]
Radio Equipment : Radio Manuals
  • AA4DF's Consumer Electronics Repair - Look for free manuals (download) in amongst paid offerings for test equipment manuals. The freebies page also has mostly ham material. We do also sell major ham collections at pretty much close to our production and distribution costs.
    [ Hits: 974 | Votes: 3 | Rating: 6 ]
Software : APRS
  • USAPhotoMaps - Free Windows APRS Client with capability of downloading free aerial photo and topo map data.
    [ Hits: 1217 | Votes: 1 | Rating: 10 ]
Software : D-STAR
  • DStar Comms - Email, GPS Beacon, GPS Tracker, Text Chat, Private messages, internet Network node (link across the internet). Dstar Comms can be used for email deployment, GPS Tracking, reliable communication plus much more. Availble in free and commercial version
    [ Hits: 2552 | Votes: 5 | Rating: 6.2 ]
Software : Decoders
  • MultiDem - USB LSB AM Modem (Modulator/Demodulator) for SdR and DSB (direct conversion) transceivers by F6CTE
    [ Hits: 4212 | Votes: 2 | Rating: 6.5 ]
Software : Filter Design
  • ScopFIR - Free windows comprehensive tool for Finite Impulse Response (FIR) filter design
    [ Hits: 1876 | Votes: 3 | Rating: 1.33 ]
  • FilterCAD - A free computer aided design program to help users without special expertise in filter design to create filters using Linear Technology's monolithic filter ICs. With FilterCAD, you can design lowpass, highpass, bandpass and notch filters
    [ Hits: 11759 | Votes: 28 | Rating: 5.03 ]
  • AADE Filter32 - ADE Filter Design and analysis is a free for download windows program to design filters
    [ Hits: 4407 | Votes: 11 | Rating: 7 ]
  • AADE Filter Design - Dowwnload this free windows programs to design Butterworth, Chebyshev, Elliptic (Caur), Bessel, Legendre and Linear Phase low-pass, high-pass, band-Pass, and band-reject filters. Coupled Resonator band-pass filters
    [ Hits: 24826 | Votes: 113 | Rating: 7.16 ]
Software : Hellschreiber
  • WinHell - Feld hell freeware windows program that permits RTX hellschriber operations by PA3BQS
    [ Hits: 1435 | Votes: 2 | Rating: 4.5 ]
Software : Logging
  • Log DXpedition - Freeware windows software log book management dedicated to dxpedition operations by IK6CAC
    [ Hits: 648 | Votes: 0 | Rating: 0 ]
Software : Morse Code Training
  • RufzXP - RufzXP is an excellent free training software for improving code speed and CW practice, particularly (ultra) high speed memory copying of true amateur radio calls.
    [ Hits: 11745 | Votes: 33 | Rating: 6.53 ]
Software : Radio Control
  • SimplePTT - This free windows application is used for simply triggering PTT via DTR/RTS COM port pins. It supports remote PTT triggering with ptt2dtr as the server.
    [ Hits: 3131 | Votes: 8 | Rating: 6.75 ]
Software : Signal Generator
  • SigJenny - SigJenny turns your PC into a flexible and powerful audio signal generator for free. It can create multiple waveforms, sweep, fire single or repeating tone bursts. You can save your sound as a wav file, display a frequency response, use SigJenny a bit like an oscilloscope, and do a very good impression of a police car!
    [ Hits: 17769 | Votes: 22 | Rating: 6.72 ]
Software : Spectrum analyzers
  • Spectrum Analyzer Real-time FFT - Eight-channel Audio Spectrum Analyzer is a set of Real-Time Multi-Channel Gauges for investigation of data accepted from any ADC you will want or 16-, 24- and 32-bit ADC of sound card. WDM drivers support. FFT Spectrum Analysis, OscilloScope, Frequency counter, AC/DC voltmeter, Signal-to-Noise Ratio, Signal-to-Noise and Distortion, Spurious-Free Dynamic Range, Effective Number Of Bits, Total Harmonic Distortion, Inter-Modulation Distortion, Phase Shift. Special modes of dual-channel FFT spectral analysis: Separate channels spectra, Spectra of digital sum, difference, product of two signals, Spectrum of digital product of original signal and its fundamental, Spectrum of Real and Complex Transfer Function, Cross Spectrum. Standart weighing of spectra according IEC and CCIR. Oscilloscope modes (for dual-channel ADC) are: original signals, sum, difference, dependence of one channel on another, amplitude distribution of input signals.
    [ Hits: 11313 | Votes: 9 | Rating: 7.77 ]
Software : Voice Keyer
  • Voice Keyer - The Voice Keyer is a free Windows based voice keyer. It is very easy to use and it handles up to seven messages. By connecting your computer soundcard to your radio it's possible to just press a button and the computer will CQ for you, to spare your voice. It can also PTT your radio via the LPT port by SM3WMV
    [ Hits: 3793 | Votes: 6 | Rating: 8.83 ]

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