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• St. louis vertical updates - The St. Louis Vertical Revisited by Dave Gauding, NF0R here are a few ideas and observations on the St. Louis Vertical
  [ Hits: 2519 | Votes: 1 | Rating: 7 ]

• Tech.fahmu.net - KF6SPI Technical blog, audio, hifi, car and ham radio topics
  [ Hits: 409 | Votes: 0 | Rating: 0 ]

• GlobalTuners.com - GlobalTuners provides access to web controlled receivers. Listen to Ham radio, Tune Shortwave radio, Listen to Air traffic control, experience Airband receptio including ACARS and Airports. Tune remotely controlled receivers all over the world with your browser and get live audio.
  [ Hits: 8976 | Votes: 44 | Rating: 5.79 ]

• ARRL Audio News - ARRL Audio News contains highlights taken from the League's weekly publication, The ARRL Letter. ARRL Audio News is available via internet in mp3.
  [ Hits: 1540 | Votes: 3 | Rating: 8.67 ]

• Jefferson County New York Live Scanner - Live Police Fire Rescue scanner for Jefferson County, New York.
  [ Hits: 11936 | Votes: 78 | Rating: 6.99 ]
• Tucson-area police radio scanner - Launch the StarNet radio scanner to listen to Tucson-area police, fire and other agencies radio transmissions.
  [ Hits: 11794 | Votes: 45 | Rating: 6.08 ]

• Maha / Powerex - Portable electronics, amateur radio, pro audio and digital cameras batteries, chargers and conditioners.
  [ Hits: 973 | Votes: 0 | Rating: 0 ]

• Shure Incorporated - Microphones and Audio Electronics - Shure incorporated, microphones and audio electronics
  [ Hits: 1485 | Votes: 1 | Rating: 5 ]

• National RF, Inc. - National rf provides consulting engineer services, and manufactures direction finding antennas, test equipment, communications receiving equipment and adjuncts, satellite antennas, voice amplification and audio equipment.
  [ Hits: 792 | Votes: 0 | Rating: 0 ]

• Sherwood Engineering Inc. - Cooling kits, drake filters, speach processors, audio switch boxes, synchronous AM detectors,
  [ Hits: 1162 | Votes: 4 | Rating: 5.5 ]

• Unusual HF Propagation Phenomena - This page has a collection of audio samples from unusual HF propagation phenomena, from round-the-world propagation to moonbounced signals , and to ducted transmission.
  [ Hits: 507 | Votes: 0 | Rating: 0 ]

• FT817 DSP noise reduction noise - Add-on audio DSP unit from BHI
  [ Hits: 2247 | Votes: 2 | Rating: 5.5 ]

• Electronics USA - Manufacturer of led digital clocks, digital timers, countdown clocks, electronic kits, audio switches, binary clock, telegraph keys, and cool gadgets.
  [ Hits: 1418 | Votes: 0 | Rating: 0 ]

• FreqTweak - FreqTweak is a tool for FFT-based realtime audio spectral manipulation and display for Linux. It provides several algorithms for processing audio data in the frequency domain and a highly interactive GUI to manipulate the associated filters for each. It also provides high-resolution spectral displays in the form of scrolling-raster spectrograms and energy vs frequency plots displaying both pre- and post-processed spectra.
  [ Hits: 1392 | Votes: 3 | Rating: 9 ]

• Voice descrambler - This program descrambles band inverted encrypted transmissions, usually found on VHF/UHF. It uses a NCO (numerical controlled oscillator) to re-produce the originally inverted audio band. Use it only if legally permitted in your country. I assume no responsabilities deriving from its use. Standard disclaimer applies
  [ Hits: 13577 | Votes: 38 | Rating: 6.16 ]

• IP-Sound  ^pop - IPSound is a Free application for audio exchange client to client over a TCP/IPv4 network (Lan or Internet). The main purpose for the existence of IP Sound is to provide low quality audio 8-16kHz, with low latency for use together with remote control software for "ham" radio amateur equipment. IP-Sound is developed by SM5VXC.
  [ Hits: 36591 | Votes: 199 | Rating: 6.78 ]

• Build An Audio Speech Processor - When one operates at low power on SSB, speech processing becomes almost essential to get through the QRM. The circuit is a low cost speech processor that will perform well with a minimum of construction effort.
  [ Hits: 4090 | Votes: 13 | Rating: 7.3 ]

• Hombrewing an HF Transceiver - This page will describe the construction of a multi band SSB transceiver with all its components Band Pass Filter, Oscillator/Modulator unit, RX/TX Mixer TX Amp I.F. Amplifier AGC VFO Driver amplifier Receive audio amplifier Final amplifier Low pass filter Digital display and VFO stabiliser
  [ Hits: 4366 | Votes: 6 | Rating: 8.33 ]

• Choosing a headphone for 160m - Weak Signal Audio 160m, choosing a headphone for weak signals reception
  [ Hits: 390 | Votes: 0 | Rating: 0 ]

• A cheap S Meter - A low-level voltage meter and could even be used for audio purposes.
  [ Hits: 2640 | Votes: 4 | Rating: 6.25 ]

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