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151 links and 4 categories about spectrum on dxzone.com

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Ham Radio : Band Plans
  • USA frequency allocations - The radio spectrum in usa, PDF File representing the united stares frequency allocations in graphical mode, by NTIA
    [ Hits: 4643 | Votes: 4 | Rating: 8.00 ]
Ham Radio : Band Plans : Frequency coordination Ham Radio : Clubs : North America : USA : California
  • T.A.S.M.A. - Amateur radio spectrum management and frequency coordination entity for 2-meters in southern california.
    [ Hits: 461 | Votes: 0 | Rating: 0.00 ]
Manufacturers : Accessories
  • AOR U.S.A., INC. - Aor u.s.a web site, manufacturer of base and mobile receivers, handheld receivers, digital voice modems, spectrum display units, frequency monitors and antennas
    [ Hits: 1673 | Votes: 7 | Rating: 5.14 ]
Manufacturers : Antennas : VHF UHF Microwave : Discone Antennas
  • WiNRADiO Communications - WiNRADiO Communications manufacture radio communications equipment for a very wide range of applications. Our customers include professional communications radio users in government, military, security, surveillance, spectrum monitoring organizations, telecommunications, industry, as well as radio and computer enthusiasts.
    [ Hits: 2750 | Votes: 2 | Rating: 10.00 ]
Manufacturers : Morse Keyers
  • Expanded Spectrum Systems - Flash crystals, Feakin' beacon keyer, beacon attenuator
    [ Hits: 705 | Votes: 2 | Rating: 10.00 ]
Manufacturers : Test Equipment
  • Spectrum Instruments - Spectrum manufactures very high-performance, low-cost, GPS-disciplined time and frequency reference standards for industry, scientific, calibration, broadcast and amateur operators.
    [ Hits: 292 | Votes: 1 | Rating: 10.00 ]
Manufacturers : Test Equipment : Frequency Counter
  • Madell Technology Corporation - Makers of oscilloscopes, spectrum analyzers, frequency counters, power supplies and more testi equipment products
    [ Hits: 826 | Votes: 4 | Rating: 5.50 ]
Manufacturers : Test Equipment : Spectrum Analyzers
  • Spectran - Cheap hand held Spectrum Analyzer
    [ Hits: 638 | Votes: 4 | Rating: 10.00 ]
  • Trilithic - Broadband instruments, R and microwave components and filters, field analyzers, spectrum analyzers
    [ Hits: 356 | Votes: 0 | Rating: 0.00 ]
Operating Aids : Radio Spectrum Operating Modes : Longwave
  • Longwave operations - In the VLF portion of the spectrum it is easy to listen to the emissions created by the Earth itself. These emissions are generated by many different mechanisms and are often beautiful to listen to. Coverage on LF and MF frequencies
    [ Hits: 585 | Votes: 0 | Rating: 0.00 ]
Propagation : Resources
  • HF Radio wave propagation - Radiowave propagation in the medium and high frequency spectrum in DOC format
    [ Hits: 650 | Votes: 3 | Rating: 3.33 ]
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: 1325 | Votes: 0 | Rating: 0.00 ]
  • 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: 7613 | Votes: 16 | Rating: 8.01 ]
  • PSK08 for Spectrum Lab - PSK08 for Spectrum Lab.Small user file to configure the software for slow PSK.
    [ Hits: 831 | Votes: 0 | Rating: 0.00 ]
Software : Low Frequency
  • Baudline signal analyzer - A Linux based FFT spectrum analyzer designed for time-frequency browsing and scientific data visualization. Oscilloscope waveform, statistical histogram, accumulated spectral trace,Weak Signal reception, continuos data logging, FFT Analyzer and specialized measurement windows.
    [ Hits: 10694 | Votes: 29 | Rating: 9.39 ]
Software : Morse Code Decoders
  • CW Decoder  pop - This program allows CW operators to copy CW code with a computer. The decoded CW is displayed as text or can generate a side tone. There is a spectrum display of the audio with a sliding cursor to select a particular audio for decoding. The program also allows for keying a transmitter from the keyboard with full CW break-in operation.
    [ Hits: 36331 | Votes: 32 | Rating: 5.92 ]
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: 2320 | Votes: 2 | Rating: 10.00 ]
Software : Spectrum analyzers
  • SpectraScope - SpectraScope is a simple Windows interface program allowing your computer to view up to two audio waveforms in either the time or frequency domain. The program is a Windows soft panel operating as a dual channel oscilloscope and spectrum analyzer. The useful frequency of operation is 20 to 10,000 Hz in the time domain and 20 to 20,000 Hz in the frequency domain. The program uses the computer sound card to capture the audio input.
    [ Hits: 10258 | Votes: 3 | Rating: 7.00 ]
Technical Reference : Audio
  • Audio spectrum analyzer  pop - Analyzes audio from 10 Hz to 20 kHz, input from microphone or wave file, Variable sample rates (8000 Hz, 11025 Hz, 22050 Hz, 44100 Hz) Variable transform sizes (1k, 2k, 4k, 8k) Upper and lower limits adjustable Continuous, averaged, peak hold
    [ Hits: 26571 | Votes: 50 | Rating: 3.86 ]
  • 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: 12651 | Votes: 15 | Rating: 7.60 ]
Technical Reference : Coax Cables and Connectors
  • RF Coaxial Connectors - RF coax(ial) connectors are a vital link in the radio spectrum. Coax connectors are often used to interface two units such as the antenna to a transmission line, a receiver or a transmitter. The proper choice of a coax connector will facilitate this interface.
    [ Hits: 3852 | Votes: 0 | Rating: 0.00 ]
Technical Reference : Spectrum Analyzers
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