signal

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signal

478 links - and 11 categories

Antennas : 80M
  • 80/75 Meter 4-Square Array - This array has been in use since 1989. The SWR from 3.5 to 3.9 is below 1.5:1. The F/R of the array is 20dB average and with some signals even better.
    [ Hits: 2285 | Votes: 1 | Rating: 10 ]
Ham Radio : Clubs : Contest Clubs
  • Badger Contesters Online - The Badger Contesters is a club of like-minded hams who are interested in VHF/UHF/SHF weak signal communications. Our geographic focus is Wisconsin, however hams in Northern Illinois, Michigan's UP, and Eastern Minnesota are welcome to join us.
    [ Hits: 401 | Votes: 2 | Rating: 9 ]
Internet and Radio : Sounds
  • DD3DJ Sound Samples - Some sound samples of received signals mainly on VHF-band
    [ Hits: 1096 | Votes: 0 | Rating: 0 ]
Manufacturers : Amplifiers
  • LNA Technology - LNA Technology High Performance Low Noise Preamplifiers for Amateur Radio, VHF-UHF weak signal, DX, EME, and commercial applications.
    [ Hits: 2193 | Votes: 4 | Rating: 7 ]
Manufacturers : Digital and Packet Radio
  • Motron - DTMF Electronics Manufacturer offers Decoding, Display, Signalling, Data Logging, Remote Monitoring and Control products and design.
    [ Hits: 589 | Votes: 1 | Rating: 10 ]
Operating Modes : 50 Mhz
  • Eliminate QRM from 6 meters band - The circuit described below will substantially reduce or completely eliminate interference from almost any local source whilst leaving the wanted signal relatively unaffected, even though it may be on the same frequencey by TREVOR, G3ZYY
    [ Hits: 1567 | Votes: 1 | Rating: 10 ]
Operating Modes : EME
  • EME with or without Signal Processing? - This page contains Contributions to a Discussion on the Moon-Net about the Application of Digital Signal Processing (DSP) Methods in Moonbounce.
    [ Hits: 365 | Votes: 0 | Rating: 0 ]
Operating Modes : QRSS
  • VK6DI QRSS - Weak Signal and QRSS Web page by VK6DI Grid Square OF88cd
    [ Hits: 554 | Votes: 6 | Rating: 9.83 ]
  • OE5EEP QRSS - transmite equipment, collections of qrss signals received
    [ Hits: 528 | Votes: 0 | Rating: 0 ]
Software : Beacon Monitoring
  • Faros - Windows shareware, automatic NCDXF beacon monitor for Radio Amateurs, SWL'ers and HF communication engineers. by Alex VE3NEA. It continuously monitors 18 NCDXF beacons on five bands, automatically detects the presence of the beacon signals, even in QRM and noise.
    [ Hits: 1420 | Votes: 3 | Rating: 10 ]
Software : DSP
  • glfer - glfer is a program for reception and transmission of QRSS/DFCW signals. It is composed of two main parts: the spectrogram window, where you can see the spectrum of the received signal vs. time the transmission functions, to emit cw characters at a slow but precisely controlled speed, using the QRSS (slow CW) or DFCW (Dual Frequency CW) modes
    [ Hits: 1821 | Votes: 0 | Rating: 0 ]
  • Linrad - Multiplatoform freeware DSP software. Linrad has its origin in software that was developed for 144 MHz EME CW but it is quite general and should be seen more like a kit for designing a receiver that a receiver for some particular usage. It can be used as a CW receiver with a small time delay and a fast waterfall graph. A dsp for conventional receiver to imporve signals readability, a spectrum analyzer.
    [ Hits: 9978 | Votes: 18 | Rating: 7.46 ]
Software : Macintosh
  • Fast Morse - Macintosh morse code software, Fast Morse will convert any text you enter into the original Morse code equivalent, and play it on your speakers. The speed can be adjusted to anything from 1 to 35 words per minute if your computer can keep up, allowing you to send Morse signals at a rate your friends and fellow Morse enthusiasts can follow!
    [ Hits: 2820 | Votes: 9 | Rating: 6 ]
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 : Oscilloscope Software : PSK31
  • RX-PSK31 - Easy to use Audio Spectrum- and PSK31 decoding program specially designed for SWL's who don't need TX or for anyone who just like to monitor PSK31 or analyse signals. Adjustable DSP and Spectrum settings for audio and frequency spectrum analasys or to set it for best decoding of PSK31 signals. By ON6MU
    [ Hits: 2959 | Votes: 2 | Rating: 10 ]
Software : Software Defined Radio
  • WINRAD by I2PHD - Winrad is a free software program designed to implement a Software Defined Radio (SDR), meant to run under Windows XP, Windows 2000, or Windows 98SE. In a nutshell, it accepts a chunk of up to 96 kHz coming from a complex mixer in form of two signals, I and Q, fed to the PC sound card.
    [ Hits: 20133 | Votes: 31 | Rating: 5.67 ]
Technical Reference : Audio
  • Soundcard Audio Tools and Toys - Soundcard audio tools and toys, experimental ideas and utilities. Signal Generator, Frequency-counter / instrument-tuner, Real-time Spectrum Analyser
    [ Hits: 14611 | Votes: 16 | Rating: 7.75 ]
Technical Reference : Homebrew
  • CW Filter - I0QM Gaussian CW Filter page This Filter for the weak signals is the evolution of the simple Universal State filter, already published on "Radio Rivista", the 8/1993
    [ Hits: 1891 | Votes: 2 | Rating: 8 ]
Technical Reference : Radio Frequency Interference
  • Filters and Ferrites in EMC - This article is about the characteristics and use of various filters and ferrites for solving amateur radio electromagnetic compatibility problems involving breakthrough of amateur signals into domestic equipment such as television sets, video recorders stereo sytems etc.
    [ Hits: 902 | Votes: 0 | Rating: 0 ]

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