digital signals

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digital signals

29 links

Internet and Radio : Sounds
  • Digital Signals - signals and sounds available on shortwave/vhf radio today along with information on the available equipment needed to understand, analyze or identify these signals
    [ Hits: 9763 | Votes: 16 | Rating: 4.75 ]
Manufacturers : Digital and Packet Radio
  • Hoka Electronics - The WWW home page for information about our specialist range of HF and VHF radio digital signals' analysis and decoding equipment.
    [ Hits: 1653 | Votes: 3 | Rating: 7 ]
  • Starman Electric - Starman Electric manufactures DataBridge wireless RF modem modules for easy point-to-point wireless data transmission of analog, digital, and serial RS232 UART signals.
    [ Hits: 316 | Votes: 5 | Rating: 10 ]
Manufacturers : Test Equipment : Signal generator
  • Tektronix - Signal Generator - Tektronix Signal Generator web site. A Tektronix signal generator can create a virtually unlimited number of signals - analog or digital, ideal or distorted and more.
    [ Hits: 200 | Votes: 1 | Rating: 1 ]
Operating Modes : DSP
  • Digital Signals Sounds - Several files with examples of sounds from digital radio modes on short wave. PSK, RTTY Hellschreiber MFSK FSK Sitor
    [ Hits: 1625 | Votes: 6 | Rating: 5.17 ]
Operating Modes : Digital Modes
  • Sights and Sounds of Digital Signals - Preview the waterfall signature of various digital signals and listen to the sound of the digital modes. Learn about the bandwidth requirements and why a linear transmitter path is critical to successful and correct use of many modes on the amateur bands by W1HKJ
    [ Hits: 1042 | Votes: 3 | Rating: 6.67 ]
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 ]
Operating Modes : Weak Signal
  • ARRL JT44 operating mode - JT44: New Digital Mode for Weak Signals
    [ Hits: 611 | Votes: 0 | Rating: 0 ]
  • JT65A - weak-signal digital mode - A very exaustive and complete article on JT65A and JT65-HF operating mode, including software download links, installation notes, how to make JT65A QSO and videos to correctly work with weak signals by NW7US
    [ Hits: 669 | Votes: 2 | Rating: 10 ]
Software : DSP
  • ScopeDSP - ScopeDSP analyzes sampled-data signals in the time and frequency domains. It can generate, read, write, window, and plot real and complex digital data signals.
    [ Hits: 838 | Votes: 1 | Rating: 1 ]
Software : Decoders
  • PDW Paging Decoder - This free windows software allows you to decode digital signals like FLEX, POCSAG, ERMES, MOBITEX and ACARS.
    [ Hits: 7159 | Votes: 32 | Rating: 5.89 ]
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 : Multimode
  • Bonito RadioCom - Decode digital and analog signals out of any high quality Transceiver or Receiver, works as a DSP-analyzing system
    [ Hits: 16280 | Votes: 13 | Rating: 6.77 ]
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 : Radio Control
  • AREight - This is the most advanced scanner software for the AR8200 and the AR8600. It can effect any type of scan, can scan from 1KHz to 3000MHz in one time. The AREight is a software for help you to listen signals from around the globe on the shortwave bands
    [ Hits: 3451 | Votes: 14 | Rating: 5.43 ]
Software : Software Defined Radio
  • SoDiRa - Windows Software Defined Radio SDR for analogue and digital modulation types. Can decode AM and FM+RDS radio as well as DRM/DRM+ and time signals DCF77/HBG. Sodira supports the use of the RTL-SDR through use of the ExtIO_RTL2832.dll module. Demo version available.
    [ Hits: 1543 | Votes: 10 | Rating: 7.8 ]
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 ]
Technical Reference : Sound Card Radio Interfacing
  • USB Warbler - This project describes how one USB port can provide all of the signals necessary to operate a transceiver in digital mode from a Windows XP laptop by KG4JJH
    [ Hits: 874 | Votes: 0 | Rating: 0 ]
Technical Reference : Test Equipment : RF Sweep Generator
  • RF Sweep Generator - Notes about generating RF sweep signals on the Arduino for filter testing, a digital version of the old Wobbulator concept
    [ Hits: 854 | Votes: 0 | Rating: 0 ]

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