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Sugar Delta Italia - The Official Sugar Delta Italy website With all the information about the SD group in Italy.

Buckmaster's World Wide HamCall Server  ^pop - Ham Call server by Buckmaster. Author of HamCall CDRom

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

The Finnish Callbook on the Web - Finnish Call Book by Heikki Hannikainen (OH7LZB)

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

IARU Web Site - The International Amateur Radio Union

Royal Signals Amateur Radio Society - The Amateur Radio Society of ROYAL SIGNALS (British Army), 1550 Members. MERCURY Journal issued three times a year (Editor G3NVK) Regular (daily) Nets. Awards and Contests. Own QSL Bureau. E-mail List Server open to all. Regularly updated Web Site (Web Master G3NVK) includes EASYMAIL facility, Guest Book, Photo Gallery, Society Rules, Military Museums.

The Radio Amateur Satellite Corporation - AMSAT NA official web 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.

Yaesu  ^pop - Yaesu official web site

Antenna Rotator System  ^{updated  pop} - The ARS will allow to control any antenna rotator (Azimuth & Elevation) from a computer. Even if you are only interested on HF arrays, the ARS will allow it. Supported from most programs as CT for DOS, tracking programs.

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

Digital Communications Conference - Hams convene each year at a Digital Communications Conference to evaluate and further the state of the art. TAPR's webserver provides conference papers from previous DCCs as well as information about the upcoming DCC.

SPACEWARN Bulletin - The SPACEWARN bulletin is intended to serve as an international communication mechanism for the rapid distribution of information on satellites and space probes.

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.

DRAO 10cm SOLAR RADIO NOISE PATROL - A graphic presentation of the 10cm solar flux index for the previous eight hours, along with links to copious archival information for previous months and years.

PIC Microcontroller Books from Square 1 - "Learn about PIC Microcontrollers from our Books ""Easy PIC'n"" and ""PIC'n Up The Pace"" See tables of contents for our books at our web site."

LZ1JZ QSL Print services - QSL printing service based Bulgaria and managed by LZ1JZ, offer from single color to full color qsl cards.

NA7EM QSL Card design - Offer custom design and printing of extremely high quality, very affordable, QSL Cards.

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

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

Weather Net - Complete weather reports from USA Puerto Rico US Virgin Islands and Guam/Marianas