audio fft analysis

Webtubes AntiqueTubes - Collectible,antique, Radio Tubes, special purpose and audio electron tubes and literature.

A Novel Perspective of Amateur Radio Contesting - A detailed analysis of amateur radio contesting using novel techniques in pdf format

SPARC - SPARC club offer live repeater audio streaming from West Haven, CT USA. EchoIRLP link also available.

NASA Online VLF Receiver  ^pop - Hear VLF audio from NASA online VLF radio receiver in Huntsville, Alabama.

Bankstown Airport-Sydney, Australia - Audio from Bankstown Airport monitored on 132.8 mhz. and 123.6 mhz.

Kenwood TS50 web control - This is an academical project to control my TS50 from the web.You can of course listen live real time audio. It is not 24 hours/day ONLINE, but click on the link to know if its connected.

Microwave audio samples - 10GHz Rainscatter audio files

RK3AF Aurora pages - VHF, ms, aurora, es, photos, audio, link, soft and more.

VOACAP Quick Guide - A Quick Guide to using VOACAP - Point-to-Point High-Frequency Ionospheric Communications Analysis and Prediction Program

Amateur Radio Propagation Studies - Amateur radio propagation studies (science, research, engineering, operating) and the BeamFinder propagation analysis software

ManualMan - Now over 10,000 manuals for amateur, audio, and radio-related equipment available

Capitol Hill Monitors - Frequencies, links for scanners, email lists, online audio and more for Maryland, DC, and parts of Delaware and Virginia

DXing.info - A comprehensive collection of DX information consisting of news, audio files, station profiles, equipment articles, discussion forum, DXpedition reports and logs for mediumwave, shortwave and FM DXers.

DART - Clean up audio files and record high quality audio CD's!

Beacon-Prediction Wizard Priority listing - Specialized interface for the communications-analysis-prediction engine provided by VOACAP, predicts the expected performance of high frequency, HF, radio systems

DataBase Toolkit by AOR - Windows freeware database containing frequencies, locations, and a small logging program capable or recording audio

MRP40 Morse Decoder  ^pop - Program to receive morse code via sound card, Windows 9x/Me/XP, it allows to transmit morse code from the keyboard. Includes a comfortable Audio Analyzer Display. Successor of known MRP37

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 to set for best decoding of PSK31.

VOACAP - Point to Point hf ionospheric communications analysis and prediction program

Ham Radio Deluxe Logbook - HRD Logbook v5 is a freeware windows logbook program that offer full control of your radio, Rotor control, support for many db engines, multiple logbook, dx cluster client interface, band maps and solar status report and audio recording

Simplex - SIMPLEX is a free windows program which transforms any transceiver into an audio repeater. It works on HF, VHF, UHF etc with SSB, CW, FM, packet, SSTV and every modulation mode.

Freq 51 - Program samples the input, performs an FFT, and graphs the output

GSpec - Spectrum Analyser for Win9x/2000 and NT, that will display audio input to your sound card in the Frequency and Time domains

Analyzer2000  ^pop - Superfast analyzer for audio and radio signals

Radio Shack Special - Here's an amazing one transistor FM radio that has amazing sensitivity, selectivity and great audio output