digital

digital

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• Helical Dipole for 40m - An helical dipole made with 10,7 meters of wire resonating on the 40 meters band, by PY1ZFK based on a project by DL8VO
  [ Hits: 955 | Votes: 2 | Rating: 5.5 ]

• VHF Cubical Quad - A project for a four element cubical quad antenna for 144 MHz in portuguese
  [ Hits: 1821 | Votes: 20 | Rating: 6.7 ]

• PSKreporter.de - PSKreporter displays the digital mode data of transmitting and receiving stations and displays them with additional information in selectable views.
  [ Hits: 482 | Votes: 18 | Rating: 8.56 ]

• ADACOM - German association dedicated to digital radio communications
  [ Hits: 369 | Votes: 0 | Rating: 0 ]
• BDM Club - Club Belgium Digital Mode application for smartphone android is on line
  [ Hits: 369 | Votes: 4 | Rating: 7.75 ]

• PSK31 HF Receiver in Charlotte NC USA - This PSK31 receiver shows you the active HF bands and tunes itself to the busiest for live decoding of the digital signal. Located in Charlotte, NC
  [ Hits: 2559 | Votes: 16 | Rating: 2.38 ]

• Have a Great Time with JT9 - JT9 is a amateur radio weak-signal digital mode can give little pistol stations big gun results, ARRL article by W4GAL
  [ Hits: 417 | Votes: 0 | Rating: 0 ]

• About NBEMS - Narrow Band Emergency Messaging Software (NBEMS) is an Open Source software suite that allows amateur radio operators to reliably send and receive data using nearly any computer (Windows, Mac, and Linux) and any analog radio without requiring a dedicated digital infrastructure or specialized modem hardware
  [ Hits: 281 | Votes: 0 | Rating: 0 ]

• Packet Radio FAQ - Introduction to packet radio and answers to common questions about this digital mode and about services you can use by VKFAQ
  [ Hits: 330 | Votes: 0 | Rating: 0 ]

• Spark - Spark is a realtime modulator software for Digital Radio Mondiale DRM, DRM+ and analog FM/AM radio standards. The software supports all code rates, bandwidths and robustness modes (A, B, C, D, E) published in the DRM standard as well as all mapping schemes, such as Standard Mapping
  [ Hits: 1475 | Votes: 4 | Rating: 7.25 ]

• 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: 787 | Votes: 1 | Rating: 1 ]

• Digital Speech Decoder - An open source software decode various xMBE based modes. It support decoding QPSK, C4FM modes such as P25 Phase 2 (TDMA), MotoTRBO, NexEDGE, ProVoice and others more.
  [ Hits: 3822 | Votes: 42 | Rating: 5.45 ]

• FreeDV - HF Digital Voice for Radio Amateurs. FreeDV is a free application for Windows, Linux and MacOS that allows any SSB radio to be used for low bit rate digital voice.
  [ Hits: 4905 | Votes: 6 | Rating: 7.17 ]
• Codec 2 - Codec2 is an open source low bit rate speech codec designed for communications quality speech at 2400 bit/s and below. Applications include low bandwidth HF/VHF digital radio and VOIP trunking.
  [ Hits: 717 | Votes: 6 | Rating: 7.67 ]

• ScopeIIR - ScopeIIR: an Infinite Impulse Response (IIR) digital filter design tool for Windows. It designs high-order IIR filters based on analog filter prototypes, and can design lowpass, highpass, bandpass, and bandstop filters.
  [ Hits: 717 | Votes: 2 | Rating: 5.5 ]

• hamOS - hamOS is a live and installable Debian based linux respin for Amateur Radio Operators. It is intended for new users with little or no linux experience. hamOS contains a variety of pre-installed applications for amateur radio like logging, homebrewing, digital modes, and more.
  [ Hits: 3771 | Votes: 10 | Rating: 7.6 ]

• Voice Keyer Deluxe - VoiceKeyDeluxe (VKD) will convert your sound card into a powerful and versatile digital voice keyer for contest or EME operations by N7QJP
  [ Hits: 1224 | Votes: 3 | Rating: 9 ]

• Using Frequency Counters - A tutorial on using RF frequency counter, how a digital frequency counter works, includes frequency counter specifications and best practices in setting counter accuracy and resolution
  [ Hits: 508 | Votes: 0 | Rating: 0 ]

• SDR Receiver using a Tube - The build was an experiment to see if a tube receiver could be stable enough to receive digital shortwave radio broadcasts. The tube acts as both an oscillator and mixer, so the receiver is a type of direct conversion receiver.
  [ Hits: 195 | Votes: 1 | Rating: 10 ]

• Logic Analyzer - Article on how to use logic analyzers for testing complex logic-digital circuits
  [ Hits: 340 | Votes: 0 | Rating: 0 ]

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