free spectrum analyzer

A Bird Yagi Antenna - Pictures and detail of contruction of a bird yagi for 10 meters and pictures of the 6 meters version

TK5EP Beverage switch - How could we share the Beverage antennas on more than one station

Dipole Calculation - Determining your proper length for the open half-wave dipole antenna

T2FD antenna - A T2FD antenna for 10-15-20 meters band

Four square phased verticals - TK5EDP 4 square phased vertical system in corse isl.

220 MHZ Spectrum Management Assn - Amateur radio spectrum management and frequency coordination entity for 219

9A5BDD - Personal webpage dedicated to the world of ham radio. Here you can find my biography, news and events from Radio club Zagreb. There is a photo gallery where you can see some interesting pictures. Feel free to follow links to webpages from my fellow colleagues.

Digital mode club (DMC) - Digital Modes Club(DMC) is for all licensed HAM operators and SWL's who likes the digital modes. It's free lifetime membership.

Digital QSO Club - The Digital QSO Amateur Radio Club DQSO is an informal club of amateur radio operators active use digital modes on all bands. Membership is free for any licensed radio amateurs.

Madell Technology Corporation - Makers of oscilloscopes, spectrum analyzers, frequency counters, power supplies and more testi equipment products

Trilithic - Broadband instruments, R and microwave components and filters, field analyzers, spectrum analyzers

160 meters by Wikipedia - From Wikipedia, the free encyclopedia, description of the 160 meters band

Achims Free Radio Desaster Priority listing - European free radio on shortwave and mediumwave.

AutoRec - AutoRec is windows freeware time based automatic recorder - player for radio broadcast. Auto Recorder will record or play wav audio files, and execute batch or other executable application programs at scheduled times. The primary use for Auto Recorder is automatic, unattended recording and playback of network or other satellite-delivered radio station program material.

ExpressPCB  ^updated - Free PCB software is a snap to learn and use. For the first time, designing circuit boards is simple for the beginner and efficient for the professional.

ClusterTalk - Freeware talking DX Cluster client for Mac OS X version 10.3 or later. With clusterTalk you can log into your favorite DX Cluster via telnet and have the spots "spoken" to you by the Mac's built-in speech synthesizer

Ipox5 radio link system - Ipox5 is the freeware version of a commercial radio linking system, designed for amateur, nhw, emergency communications etc. It is optimised for mobile broadband and difficult IP links. It allows PC access, and up to 100 users on your link at one time. Usefull for multiple PMR446 use on very large sites. Works under Windows 98, XP, Vista, and Linux (under Wine)

Grig Radio Control - Grig is a freeware simple Ham Radio control (CAT) program based on the Ham Radio Control Libraries (Hamlib). It is intended to be highly generic presenting the user to the same graphical user interface regardless of which radio is being controlled. Grig supports the most commonly used CAT commands that are implemented by Hamlib, and integrates well with other ham radio programs like Xlog and gMFSK. Grig has been developed on Linux, but has been ported on Mac and Windows OS.

Cleverscope - The PC USB mixed signal oscilloscope - Cleverscope PC based oscilloscopes, spectrum analyzers and signal generators

BIP Electronics Lab Oscilloscope - Freeware windows oscilloscope uses the sound card's input to measure signals. This means that the quality of the scope depends on the quality of your sound card. The scope automatically uses the highest sample frequency available at the input that you select

Fldigi - Freeware Digital modem program for Linux, Free-BSD, OS X, Windows XP, W2K, and Vista. Support several modes and is fully multi platform application by W1HKJ

KWRTTY - Freeware RTTY windows decoding program in German by DGØKW, Klaus

FreeSCAN - Freeware windows program for programming the Uniden SC230, BC246T, BC330T, BCD396, BC15T and BCD996T scanners. FreeSCAN allows to download and uploading programming, remote control the scanner, log hits, and supports printing out of systems and groups.

Sine Wave Generator - Freeware windows Wave Generator use the sound card's output as sine wave output. A built in sweep algorithm is used by audio hackers to measure frequency repsonses of their amplifiers

QuickMix - Freeware windows program that allows you to store configuration of your audio mixer in a settings file, and to restore the mixer to that state whenever you want. Useful for digital mode operations where different dsp programs may require different audio in and out settings.