free spectrum analyzer

A Lowband Antenna that is Almost Free  ^pop - The Shunt-fed Tower, an effective Low Band Antenna, uses your beam as a capacitive top-hat and only needs a simple feed network and a good ground system to work DX on 80M and 160M.

Tom's Antique Radio Repair - Specializing in antique, vintage and tube radio repair, all makes. Transistor radio repair- from the 50's to the present. Free estimates.

Glorioso 2006 - AF-011 - Clipperton DX Club - CDXC

5H1C - DXpedition to Zanzibar Island - 5H1C - Clipperton DX Club DXpedition to Zanzibar Island

Amateur Radio Band Plan Layout  ^{updated  pop} - Excellent free downloadable band plans layouts ready to print in pdf format by C.Gustave Sandberg W1CGS

HAM Rádio BR / Feirnha DIGITAL - Brazilian free classifieds, links and more.

PMR446 Chesterfield eQSO Gateway - Website for all Chesterfield Gateways on 446, using eQso.

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

ESA Portal - Calling all radio amateurs Priority listing - Radio amateurs worldwide are being asked to help collect data from the student-built SSETI Express satellite, due to be placed in orbit on 27 September. To encourage them, ESA’s Education department has organised two competitions and is supplying free downloadable software.

HF Radio wave propagation - Radiowave propagation in the medium and high frequency spectrum in DOC format

Yaesu FT-857 serial cable - Here is a serial control (CAT) cable that plugs into the FT-857's microphone jack, freeing the CAT/Linear jack for other purposes.

Tealinfo reference for Yaesu VX-5R - TealInfo Reference for Yaesu VX-5R, software for PalmOS

Modifications for the Yaesu VX-5R - VX-5R Loose antenna cure, Vx-5r Free Band, VX 5 R modification for German, VX-5R expanded frequency mod, VX-5R MARS/CAP & freeband mod

RADIO33 Radio Shop - Amateur radio shop in Canejan France, offers repair services too.

Alfa Lima International - A free radio station that is transmitting world wide on several shortwave frequency 's with loads of pirate and freeradio information.

Shortwave Radio Appraisal Tool - Just fill out a form and LessWaiting.com will appraise the value of your shortwave radio instantly, free of charge.

DxLink Priority listing - DxLink, a freeware DX cluster user software. Connect via Telnet or packet. CAT-interface and telnet out to run with your favorite logging software. Now version 1.5

Cabrillo Evaluator by W3KM - Cabrillo Evaluator Software by W3KM free software loads Cabrillo log files, evaluates and scores them.

BBLogger - BBLogger, a freeware windows software to fully manage you Amateur or Short Wave Listener Radio Station written by Giorgio IK2VIW

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.

FTBCAT Cat radio control software  ^pop - Free CAT control software for Yaesu FT-100, FT-100D, FT-817, FT-817ND, FT-847, FT-857, FT-857D, FT-897, FT-897D, FT-920, FT-1000MP Mark V, VR-5000 and FRG-100 transceivers.

CCRadioTech Uniden programming software - Free windows control/programming software for the Uniden Bearcat UBC-3300XLT and 780XLT

Rocky Software for SoftRock40 - SDR software for SoftRock40 freeware by Alex VE3NEA

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.

Introduction to DSP - Bores Signal Processing freeware course to DSP