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421 links and 11 categories about signal on dxzone.com

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Antennas : Array Antennas : Receiving
  • Broadband receiving antenna matching - This article addresses the subject of obtaining the best signal transfer from an antenna to the typical 50-ohm receiver input over a wide frequency range, with emphasis on medium-wave (500 2000 kHz), encompassing the standard AM broadcast band and the 160-m amateur band.
    [ Hits: 4429 | Votes: 4 | Rating: 6.00 ]
Ham Radio : Resources
  • Amateur Radio Info - Information for Amateur Radio, Echolink,``Frequency assignment,Q Signals, RST, Fcc Part 97, 3rd Party traffic.
    [ Hits: 917 | Votes: 0 | Rating: 0.00 ]
Internet and Radio : Live streaming Internet and Radio : Online Receivers
  • Radio Meteors-NASA Alabama - Icom PCR 1000 at NASA Marshall Space Flight Center monitoring meteor signals on 67.3 mhz.live.
    [ Hits: 4436 | Votes: 6 | Rating: 3.67 ]
Operating Aids : Phonetics and codes
  • Q Signals - Comprehensive Listing of Q Signals
    [ Hits: 3157 | Votes: 4 | Rating: 7.50 ]
Operating Modes : GPS
  • Navstar GPS - GPS signal characteristics, system time, system segments, frequencies
    [ Hits: 601 | Votes: 1 | Rating: 4.00 ]
Operating Modes : MFSK
  • DOMINO - new MFSK mode - A new MFSK mode with IFK by ZL1BPU and ZL2AFP.It is a simple Amateur Radio mode for keyboard QSOs. domino provides digital chat-mode operation on the HF bands, using the well respected sound card technique. Domino will handle TX/RX offsets and mistuning of 200Hz with ease, and will provide perfect copy of drifting signals up to 200Hz/minute!
    [ Hits: 2117 | Votes: 7 | Rating: 6.43 ]
Operating Modes : Weak Signal Publications : Manuals
  • Timewave manuals - Timewave Documents for User Download, PK-900 Multimode Data Controller, PK-232 Multimode Data Controller, DSP-232 Multimode Data Controller, DSP-9 Noise Reduction and Bandpass Filter, Audio Signal Processor and Noise Reduction Filter, Audio Signal Processor and Noise Reduction Filter for Yaesu SP-5 and SP-6 Speakers
    [ Hits: 1099 | Votes: 0 | Rating: 0.00 ]
Shortwave Radio : BCL Resources
  • Interval Signals Archive - Large collection of audio clips of foreign radio stations, with identification announcements in various languages, signature tunes and jingles, and of course interval signals.
    [ Hits: 1777 | Votes: 15 | Rating: 6.34 ]
Software : DSP
  • LF Analyser - Professional analyser sound signals, scope, spectrum, spectrograph
    [ Hits: 2661 | Votes: 1 | Rating: 2.00 ]
  • HF Analyzer - Professional analyser HF signals, work with bandwidth 500Hz....60Mhz, ddc-mode, scope, spectrum
    [ Hits: 4993 | Votes: 7 | Rating: 4.43 ]
  • Trimitator - Software for imitation digital radio-signals: ASK, FSK, BPSK, QPSK, variable speed, any frequency
    [ Hits: 1821 | Votes: 2 | Rating: 5.50 ]
Software : Morse Code Decoders
  • 59+ CW - Freeware Win32 application can be used for sending CW signal to the transceiver over a COM port or simply listening to Morse code on the speaker. The application is very easy to configure and will allow you to you to add new Morse characters set speed, tone, dash, dot, PTT line delay and other parameters. It is also possible to set shortcuts for call, QTH, name, RST and ANY other QSO field.
    [ Hits: 18774 | Votes: 19 | Rating: 5.54 ]
Software : Radio Control
  • AREight - This is the most advanced scanner software for the AR8200 and the AR8600. It can effect any type of scan, can scan from 1KHz to 3000MHz in one time. The AREight is a software for help you to listen signals from around the globe on the shortwave bands
    [ Hits: 2924 | Votes: 13 | Rating: 5.69 ]
Software : Spectrum analyzers
  • SIGVIEW spectrum analyzer - Complete real time signal analysis software with wide range of powerful FFT spectral analysis tools, statistics functions and comprehensive visualization system.
    [ Hits: 10806 | Votes: 10 | Rating: 7.60 ]
Technical Reference : Amplifiers : RF Amplifiers Theory
  • A.M. tutorial - This tutorial is designed to help explain some of the concepts involved in RF power measurement for amplitute modulated signals.
    [ Hits: 3385 | Votes: 4 | Rating: 6.00 ]
Technical Reference : Audio
  • Audio Preamp - Easy circuit that provide good gain to weak audio signals
    [ Hits: 3350 | Votes: 2 | Rating: 3.50 ]
Technical Reference : Components
  • Eliminate That QRM - 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 frequency
    [ Hits: 1014 | Votes: 0 | Rating: 0.00 ]
Technical Reference : Homebrew
  • 430MHz ATV transmitter - ATV transmitter on 430MHz band used with special transmitting tube named 5894 for final stage. Run about 10W average for TV signal and 20W at synchronous peak. Final stage control gird modulation works well for NTSC color video signal and good at audio as well.
    [ Hits: 3426 | Votes: 0 | Rating: 0.00 ]
Technical Reference : Radio Frequency Interference
  • RFI Information Page - This page gives information about Radio Frequency Interference, the unwanted reception of radio signals. You'll find out how to determine what is at fault (the transmitter or the receiver) and what you can do in either case.
    [ Hits: 6758 | Votes: 4 | Rating: 4.75 ]
  • TVI filters - These filters are in use by hundreds of VHF weak signal operators and have been proven to be an effective solution for fundamental overload problems.
    [ Hits: 945 | Votes: 1 | Rating: 7.00 ]
  • 6m High Pass TVI filter - Are you suffering from TVI? Then why not try this filter for size. It is a three-stage high-pass filter that blocks low-frequency 50MHz signals while letting through UHF TV.
    [ Hits: 1284 | Votes: 2 | Rating: 3.00 ]
Technical Reference : Repeater
  • Amateur Radio Repeater Controller - The project requirement is to design the interface to the signal channel elements after the receiver and before the transmitter
    [ Hits: 861 | Votes: 2 | Rating: 1.00 ]
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