radio signals

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radio signals

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Antennas : Mobile
  • 2 Meter Vertical Mobile Antenna - Mobile vertical antenna for 144 MHz suitable for satellite signals reception by K5OE
    [ Hits: 5544 | Votes: 5 | Rating: 6.3 ]
DX Resources : Beacons
  • Beacon Signals.com - Covering all areas of beacon signals including radio beacons and beacon technology. Access free beacon recordings and graphs using Spectrum Lab, SpectraVue, and CW Skimmer.
    [ Hits: 1192 | Votes: 4 | Rating: 9.75 ]
Internet and Radio : Podcast
  • The DX Podcast - A podcast devoted to long-distance radio reception on the AM broadcast band. AM, or Medium Wave (MW), signals can travel thousands of miles.
    [ Hits: 1479 | Votes: 2 | Rating: 5 ]
Internet and Radio : Sounds
  • Listen to Radio Meteors live - Echos of USAF (Formally NAVSPASUR) radar signals reflected off of meteor trails received at Roswell, New Mexico
    [ Hits: 1432 | Votes: 11 | Rating: 6.91 ]
Manufacturers : Software Defined Radio
  • SoftRock-40 - The SoftRock-40 is a small, low-cost, good-performing "software defined radio" receiver that plugs into a computer USB port and delivers I-Q audio signals to the computer's sound card. It was designed by Tony Parks, KB9YIG and Bill Tracey, KD5TFD as an "SDR sampler project" for hams everywhere to easily try out software defined radio.
    [ Hits: 8538 | Votes: 9 | Rating: 7 ]
Operating Modes : DSP Operating Modes : EME
  • The JT65 Communications Protocol - Digital protocol intended for Amateur Radio communication with extremely weak signals. Joe Taylor, K1JT
    [ Hits: 1189 | Votes: 2 | Rating: 5.5 ]
Operating Modes : JT65
  • JT65 Protocol - JT65 is a digital protocol intended for Amateur Radio communication with extremely weak signals. It was designed to optimize Earth-Moon-Earth (EME) contacts on the VHF bands, and conforms efficiently to the established standards and procedures for such QSOs.
    [ Hits: 1505 | Votes: 3 | Rating: 7 ]
Propagation : Resources
  • Here Comes the Sun - Propagation and Sun - Solar activity can aid or hamper HF propagation beyond line-of-sight range, WA1SVF and N6BV answers to questions about Sun influence on radio signals propagation
    [ Hits: 575 | Votes: 0 | Rating: 0 ]
Software : Beacon Monitoring
  • Faros - Windows shareware, automatic NCDXF beacon monitor for Radio Amateurs, SWL'ers and HF communication engineers. by Alex VE3NEA. It continuously monitors 18 NCDXF beacons on five bands, automatically detects the presence of the beacon signals, even in QRM and noise.
    [ Hits: 1420 | Votes: 3 | Rating: 10 ]
Software : DSP
  • Signals Analyzer - Signals Analyzer it is the program, which is designed for the very qualitative analysis of different signals. The main area of SA application is the analysis of unknown or unclear, strange signals.
    [ Hits: 4351 | Votes: 9 | Rating: 7.11 ]
Software : JT65
  • WSJT - WSJT-X and MAP65, open-source amateur radio programs, facilitate weak-signal digital communication. WSJT-X covers VHF/UHF to HF, decoding subthreshold signals. MAP65 optimizes for VHF/UHF EME with JT65. Free and GNU GPL licensed, WSJT-X is on Windows, Linux, and OS X, while MAP65 is Windows-only, supporting SDR hardware.
    [ Hits: 2765 | Votes: 5 | Rating: 6.4 ]
Software : Navtex
  • DSCdecoder - DSCdecoder decodes the DSC digital signals from ships and coast stations using the sound card in your PC. You need a suitable MF, HF or VHF band radio receiver tuned to one of the DSC distress and calling channels or to one of the Navtex channels
    [ Hits: 6218 | Votes: 11 | Rating: 6.09 ]
Software : Software Defined Radio
  • SDRadio - A software defined radio by Alberto I2PHD
    [ Hits: 19144 | Votes: 26 | Rating: 6.92 ]
  • WINRAD by I2PHD - Winrad is a free software program designed to implement a Software Defined Radio (SDR), meant to run under Windows XP, Windows 2000, or Windows 98SE. In a nutshell, it accepts a chunk of up to 96 kHz coming from a complex mixer in form of two signals, I and Q, fed to the PC sound card.
    [ Hits: 20133 | Votes: 31 | Rating: 5.67 ]
Software : Spectrum analyzers
  • Signals Analyzer - Signals Analyzer it's a a program, which is designed for the very qualitative analysis of different signals. The one of main fields of SA application is the analysis of unknown or unclear, strange signals. This programm will be very usefull to everyone from professional analysts to amateurs.
    [ Hits: 5035 | Votes: 6 | Rating: 9.83 ]
Software : Time
  • Radio Clock - Radio Clock listens to radio time signals from your radio and corrects the time on your PC clock
    [ Hits: 975 | Votes: 0 | Rating: 0 ]
Technical Reference : Homebrew
  • CW Filter - I0QM Gaussian CW Filter page This Filter for the weak signals is the evolution of the simple Universal State filter, already published on "Radio Rivista", the 8/1993
    [ Hits: 1891 | Votes: 2 | Rating: 8 ]
Technical Reference : Radio Frequency Interference
  • Filters and Ferrites in EMC - This article is about the characteristics and use of various filters and ferrites for solving amateur radio electromagnetic compatibility problems involving breakthrough of amateur signals into domestic equipment such as television sets, video recorders stereo sytems etc.
    [ Hits: 902 | Votes: 0 | Rating: 0 ]
Technical Reference : Software Defined Radio : Beginner's Guides to SDR
  • Software-defined radio by Wikipedia - According to wikipedia a software-defined radio is a radio communication system which uses software for modulation/demodulation of signals
    [ Hits: 1056 | Votes: 1 | Rating: 4 ]

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