coax antenna for hf

The Homebrew Slim Jim Antenna Gain - Slim Jim antenna gain

AT Forum - AT Forum managed by Bob, 26AT026

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

ARRL contest branch - ARRL contest calendar, scores, Forms and rules

FCC Forms Available via Internet - Many official FCC forms available in Acrobat PDF format.

Desert RATS forum - Ham Radio Open Forum for all Hams. Sponsored by the Desert RATS (Radio Amateur Transmitting Society) .Palm Springs, Coachella Valley and the inland Desert Communities in Southern California.

UCSD - University if California San Diego Ftp site

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.

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.

NAVSTAR GPS Timing Operations - NAVSTAR GPS Timing Operations, USNO GPS Data & Information Files Global Positioning System Overview Current GPS Constellation, GPS Time Transfer Operations, GPS & Glonass Satellite Visibility

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

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.

Introduction to HF propagation - An Introduction to High Frequency Radio Propagation by IPS Radio & Space Service

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."

Muir Communications Ltd - Victoria BC. - Amateur Radio and 2-way commercial Radio Dealer. Sales and service for ICOM Radio Products. CB Radios, antennas and installations. Spread Spectrum Radio modems.

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!

DIGTRX - High definition SSTV software for windows 2000, xp by PY4ZBZ

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

40MHz Frequency Counter Module - Design for a very low cost 6-digit frequency counter module using of the shelf components