spectrum commander

Longwave Non-Directional Beacons - Beacons operating in the longwave radio spectrum, generally between 200 and 450 kHz

Commander Amplifiers  ^pop - HF anf VHF amplifiers made in U.S.A. by Command Technologies, Inc. now acquired by Palstar

EH Antenna Systems - Provide information relative to a new antenna concept. AM Broadcast antennas and amateur radio prototypes

Optoelectronics - DTMF, RF, decoders receivers and accessories icluding computer interface boards, frequency counters, tone decoders, spectrum sweeper and nearfield receivers

Antenna Products - Antennas cover the RF spectrum from kilohertz to gigahertz and support countless mission critical military, air-sea navigation, ILS and voice-data communications applications.

ScanStar - Radio spectrum monitoring and analysis tools for industry and government

US Frequency Allocation Chart - Colorfull radio frequency spectrum allocations in the US, in PDF Format

The Radio Spectrum  ^pop - Radio frequency allocations

US Spectrum Requirements - Amateur and amateur-satellite services, current uses of the amateur service

Radio Propagation - Spread Spectrum Scene. Radio Propagation notes, with downloadable files.

VHF UHF Microwave Radio Propagation - Notes on radio propagation in that part of the spectrum (upper VHF to microwave) used by experimenters for high-speed digital transmission

North Ireland scanner info - Frequency spectrum, civilian and military frequencies

All Spectrum Electronics - Hobby kits and electronics, semiconductors, components, batteries, ham radio gear and more

Muir Communications Ltd - Victoria BC. - Amateur Radio and 2-way commercial Radio Dealer. Sales and service for ICOM Radio Products. CB Radios, antennas and installations. Spread Spectrum Radio modems.

Isis Electronics (Cheltenham) Ltd - UK Sales of used RACAL, Watkins-Johnson, Icom, Microwave. Large Qty Racal 1792 in Stock. Spectrum Analysers, UHF,VHF Generators, Network Analysers, Bus Switches.

BeaconSee - BeaconSee shows you, in real time, worldwide HF band openings on your PC. Analyses the audio signals from your radio, which is tuned to the NCDXF IARU HF beacon network and shows you the signal strength received from each of the 18 beacon transmitters as a plot of frequency spectrum against time.

WinWarbler - A free soundcard application supporting PSK31, PSK63, RTTY, CW, and Phone operation. It can decode all PSK QSOs within a 4 KHz segment, maintaining a sorted list of heard callsigns; it can simultaneously decode RTTY via soundcard and an external modem, generates CW directly or via WinKey, and includes a voice keyer. WinWarbler interoperates with the free Commander, DXKeeper, and SpotCollector for transceiver control, logging, and spotting.

DigiPan  ^pop - DigiPan provides a panoramic display of the frequency spectrum in the form of an active dial scale extending the full width of the computer screen. DigiPan is the result of a joint effort between myself and Nick Fedoseev, UT2UZ, the author of MIXW32, and is intended to make PSK31 operation easier and more enjoyable for everyone.

Commander  ^{updated  pop} - A free application that controls up to 4 Alinco, Elecraft, FlexRadio, Icom, JST, Kachina, Kenwood, TenTec, or Yaesu transceivers, switching between them manually or automatically based on frequency, and displaying frequency-dependent settings for devices like tuners and amplifiers; includes a bandspread, and supports transverters, frequency and mode tracking by an independent transceiver or receiver, SDR-based panadaptors, and SO2R switching with microHam or OTRSP-compliant devices.

Scan*Star - Radio monitoring and analysis tools. Scanning, searching, spectrum analysis and traffic analysis. Amateur, Industry & Government,

Spectrogram  ^pop - Shareware dual channel audio spectrum analyzer for Windows 2000/XP which can provide either a scrolling time-frequency display or a spectrum analyzer scope display in real time for any sound source connected to your sound card. Can be used for MTHELL, QRSS and DFCW by R S Horne

MDS Spectrum Analyzer - Software for radiomonitoring, radio spectrum analysis.

Zelscope  ^pop - Zelscope is a Windows software that converts your PC into a dual-trace storage oscilloscope and spectrum analyzer. It uses your computer's sound card as analog-to-digital converter, presenting a real-time waveform or spectrum of the signal - which can be music, speech, or output from an electronic circuit.

Spectra - Accurate spectrum analyzer in the range 0 - 2500 Hz, makes an accurate FFT analysis of an audio signal coming from the soundcard

Spectrum Analyzer Project - This is a tracking page for a tv tuners based homebrew spectrum analyzer project.