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  • OpenMHz
    Record a local radio system and share it with the world If you have a spare computer, it is easy to get started With a $25 SDR or two, you can capture an entire system It does take a little bit of work to get things setup, but we are here to help and answer questions
  • Digital Frequency Search
    The new Digital Frequency Search tool increases search flexibility and introduces different methods of presenting the frequency data
  • Broadcastify - Listen Live to Police, Fire, EMS, Aviation, and Rail . . .
    The world's largest source of public safety, aircraft, rail, and marine radio live audio streams
  • Intercept - Scanner Frequencies and Frequency Database
    Click here to see nationwide frequencies and information The world's largest radio scanner frequency database
  • U. S. Scanner Radio Audio Streams - Listen Online
    For more on scanning and the bands and types of services, see our Scanner Frequencey Range Chart Click on our interactive USA map below which will show you which broadcasts are availble online now for each State
  • RadioReference | Home
    Explore and search our database of over 224K identified frequencies and 7 1K trunked radio systems Discuss radio communications topics with tens of thousands of people from all over the world Research and view thousands of user contributed radio communications reference topics
  • Rangecast HTML5 Player - Live Police Fire Online Scanner
    You can choose the specific channels you want to monitor, and listen to new or previously recorded content The media player is a responsive website, so you can access Rangecast on your PC, Android, or Apple devices The Rangecast HTML5 player provides a window into the audio library
  • Online Frequency Detector – Detect Sound Frequency in Seconds
    Whether you’re singing, humming, speaking, clapping, whistling, or playing an instrument, this online frequency detector shows the precise pitch in Hertz (Hz) instantly
  • WebSDR. org
    SDR technology makes it possible that all listeners tune independently, and thus listen to different signals; this is in contrast to the many classical receivers that are already available via the internet
  • Real-Time Frequency Detector — Online Hz Scanner
    Detect the frequency of any sound in real time using your device's microphone See the exact Hz value, musical note, waveform visualization, and frequency spectrum — all processed locally in your browser





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