two way radio

UALR Call Sign Search - University of Arkansas at Little Rock's, U.S. Amateur Radio Callsign Lookup Page.

Canadian Amateur Radio Callsign Database - Search engine is provided by Radio Amateurs of Canada.

The Radio Amateur Satellite Corporation - AMSAT NA official web site.

Jefferson County Amateur Radio Club - Jefferson County Amateur Radio Club - Arnold, Mo

Slovenia - ZRS - Zveza Radioamaterjev Slovenije

10-10 FTP archive - Ham radio related anonymous ftp site by 10-10

UCSD - University if California San Diego Ftp site

Radio Gateway by IKXHT - "The project ""Internet on the Air!"" Radio Gateway project"

Dunestar Systems - Manufacturer of single band and multiband transceiver bandpass filters for HF. High pass filters, two radoi headphones mix and switch, 6 meter portable antenna, antenna remote switching and steering.

Kantronics - Kantronics produce Modems, Tnc, Kam, Marine, wireless modems. Packet radio communication devices, HF E-mail, paging, GPS tracking, weather data gathering, or wireless data transmission.

Lazy Dog Engineering LLC - Manufacturer of software-defined radios and portable antennas

OH3TR ATV Pages - OH3RTR ATV Repeater, and some local ATV inventions like a two-stage 23 cm preamp.

West Devon Repeater Group Web Site - English ham radio group devoted to ATV

Atlanta ATV - ATV ham radio group based in Atlanta USA

Deutscher Amateur-Radio-Club e. V. Priority listing - German ATV Club

Celes Trak - NORAD Two-Line Element Sets, FAQ, and related informations.

HF-FAX - The home of Radio Facsimile wefax & SSTV.

Near-Realtime MUF indicator  ^pop - This is a highly informative map that can be used by amateur and professional radio communicators to determine maximum usable frequencies for any world-wide path at the indicated UTC (Zulu) time.

Radio Propagation - Spread Spectrum Scene. Radio Propagation notes, with downloadable files.

SHF MICROWAVE PARTS Co. - Microwave parts for ham radio and experimenters.

Antique Electronic Supply - Antique Electronic Supply has a complete line of vacuum tubes. We feature Svetlana vacuum tubes for amateur radio, broadcaasting and audio applications. We have over 700,000 new old stock tubes to choose from. We also have a complete line of transformers, featuring Hammond and One Electron. Capacitors, resistors, parts, books, etc. Most orders shipped within 24 hours. Major credit cards accpeted. E-mail for free catalog!

QRZ Cdrom Shareware - Shareware and Freeware HAM radio software by QRZ.COM

EZLog - Amateur radio log by WN3WVG

Radio Propagation & Diffraction Calculator  ^pop - This is a radio frequency propagation calculator for the transmission path between an RF transmitter and a receiver.

SSTV FAX WX Software  ^pop - A very clomplete ham radio software collection for SSTV, FAX, and WX