free sdr

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.

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.

FlexRadio Systems - Software Defined Radios - FlexRadio Systems delivers the first truly open source Software Defined Radio transceiver for Amateur Radio use. Receive Only versions are also available for non Amateur Radio applications. Read the SDR Articles and the SDR-1000 Product Information.

SoftRock-40 - The SoftRock-40 is a small, low-cost, good-performing "software defined radio" receiver that plugs into a computer USB port and delivers I-Q audio signals to the computer's sound card. It was designed by Tony Parks, KB9YIG and Bill Tracey, KD5TFD as an "SDR sampler project" for hams everywhere to easily try out software defined radio.

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.

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

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

SpectraVue - A Windows based Spectral Analysis/Receiver Program primarily used with the SDR-IQ, SDR-14 , SDR-IP, RF capturing hardwares

High Performance Software Defined Radio - The HPSDR is an open source, GNU type, hardware and software project intended as a "next generation" Software Defined Radio (SDR) for use by Radio Amateurs and Short Wave Listeners

Open Source SDR - Modular Software Radio, at sourceforge

OpenSDR -- Software Defined Radio - The Open SDR Project

SDRadio - A software defined radio by Alberto I2PHD

Spectra SDR Software Defined Radio - Power Tools, communications architecture wireless mobile middleware tool

Texas Intruments Software Defined Radio - Sundance SDR, TI software defined radio solution

M0KGK SDR Decoder Software - KGKSDR is my attempt at some SDR decoding software. I'm putting this software together purely as a learning exercise, to better understand the mathematics behind SDR in general.

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

SDR - Software Defined Radio - Forum - SDR Forum - organization dedicated to promoting the development, deployment and use of software defined radio technologies for advanced wireless systems.

SDR Forum Primer - SDR Functional Perspective, comcepts and related informations

Introduction to DSP - Bores Signal Processing freeware course to DSP

FCC Facilitate SDR technology - FCC adopts rule changes to faciliate deployment of Software Defined Radio technology

ARRLWeb: Software Defined Radio - ARRL page on SDR technology