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Antenna Modelling - Antenna modelling notes, including wich antenna modelling software choose and where to find useful resources for antenna planning and home-brewing.

Remote antenna tuner controller - Software to remotely tune an HF antenna, included in help a principle hardware picture, by M.Recchia IK0VVE

K6RF Streaming Video - Live video and audio feed from K6RF ex K6DXC radio shack. Audio is from either the FT-920, FT-817 receivers or a microphone. Video is from a Logitech Pro-4000 Webcam

K8ZT's Ham Radio Resources - K8ZT's Extensive Ham Radio Resources about QRP, Vanity Callsigns, Software, Maps, Kent State, Shack Design, Argonaut, Sommer, Log Analysis

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.

VectorFox - VectorFox is a software born to incorporate a PC into the fox hunting environment. VectorFox is able to take inputs from up to 5 sources, such as a 2m beam, a 2m signal meter, a TDOA, etc, and display the results on the screen. VectorFox also accepts Agrelo inputs. From these results the operator can choose which indication is best and have a line drawn on the map in the direction of the signal.

HF Antennas for restricted space - Arrl document about invisible antennas and indoor systems. It is important to consider that few compromise antennas are capable of delivering the performance one can expect from the full-size variety. But the patient and skillful operator can often do as well as some fellows who are equipped with high power and full-size antennas. The "cliff-dweller" may not be able to "bore a hole" in the band as often, and as easily, but DX can be worked successfully when band conditions are suitable.

ComTekk Tone Generator - ComTekk Software Tone generator for 2-way radio signaling. Use sound card to generate CTCSS, DTMF, tone remote, ANI and more. Synthesizer for simulation and testing of 2-way radio systems, repeaters, remote control, ANI, Paging and more

DF9CY Project Auriga - PA is a JAVA software package containing several programs, SW/VHF/UHF Logbook (imports format from RADIOMAN, VMT), Log conversion to HTML format, Import and export functions for RADIOMAN, CT RES files, BV QSL Labels, CSV etc. Internet DX-Cluster support, Keeps track of your worked Callsigns, Checks your worked Grid Squares per band, Databases for worked Grids and Callsigns Uses K1EA CQWW.CTY country file, Easy command line version for terminal operation Moontracking as clock, Pathloss calculation

UALOG, YVLOG, SQ, AutoCQ - UALOG, russian logbook, YVLOG log program for icon 756 radios, SQ echo repeater and DSP Filter for your radio

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.

BCD396T Manager Priority listing - Uniden BCD396T control and programming software written in tcl/tk for all linux/*nix systems. Should run on any system that has tcl/tk.

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

GNU Radio - GNU FSF Project - GNU Radio is a collection of software that when combined with minimal hardware, allows the construction of radios where the actual waveforms transmitted and received are defined by software

DRM Software Radio Project - The DRM Software Radio is based on the proven Fraunhofer DRM engine, which is considered to be the most advanced DRM engine today, built around fully licensed proprietary DRM encoding technology.

FhG Software Radio - The Fraunhofer Software Radio is a first-class DRM reception system which provides audio and multimedia data content

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

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.

The Software Radio - Software Radio resources, research projects and labs worldwide

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