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reduce noise

7 links about reduce noise on dxzone.com

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Antennas : Feed Lines : Choke
  • Common Mode Choke Theory - A common mode choke may be used to reduce a type of electrical noise known as common mode noise. Electro-magnetic interference (E.M.I.) in the circuit's environment is one source of electrical noise.
    [Hits: 1108 | Votes: 4 | Rate: 1.00]
Antennas : Loop
  • VLF-LF and the Loop Aerial - The article discusses the theory of loop aerials for receiving and how they reduce the level of local noise by Lloyd Butler VK5BR
    [Hits: 995 | Votes: 0 | Rate: 0.00]
Antennas : Receiving
  • 160/80m Coaxial Receiving Loop Antennas  pop - Receiving loop antenna for top band. This antenna allow to reduce noise on both bands. The stand alone 80m loop is approximately four feet in diameter. And made of light weight material. Which makes it ideal for portable use or you can mount it above a pre-existing vhf antenna, and due to it's small size it is quite rotatable.
    [Hits: 50029 | Votes: 47 | Rate: 5.88]
Antennas : Theory
  • Local QRM reduction - It is not always possible to tackle the sources of local QRM. What remains is trying to reduce the noise level by means of your antenna system. Learn how to reduce QRM and understand how cancell noises by PA0SIM
    [Hits: 570 | Votes: 0 | Rate: 0.00]
Operating Modes : DSP
  • Psk31 - PSK31 is a digital communications mode which is intended for live keyboard-to-keyboard conversations, similar to radioteletype. Its data rate is 31.25 bauds (about 50 word-per-minute), and its narrow bandwidth (approximately 60 Hz at -26 dB) reduces its susceptibility to noise.
    [Hits: 1102 | Votes: 1 | Rate: 10.00]
Operating Modes : Longwave
  • VLF-LF And the Loop Aerial - The article discusses the theory of loop aerials for receiving and how they reduce the level of local noise. A Loop Aerial is described suitable for use on the LF and VLF bands together with a circuit of an interface loop tuner and preamplifier. The discussion extends to the problems of amplifier noise and the advantages of tuning the loop.
    [Hits: 2520 | Votes: 5 | Rate: 5.40]
Radio Equipment : HF Transceivers : Kenwood TS-850
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