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The Battle Creek Special Antenna - This antenna is often mentioned as secret weapon for LF bands (160, 80 & 40 m) operating at many DXpeditions. It is not commercially available but may be loaned to the expedition staff. It was brought to Ham Radio scene by George Guerin, K8GG, Charlie Dewey, W0CD and George Taft, W8UVZ

Antenna Impedance measurement - When experimenting on an antenna it's often important to determine its feedpoint impedance at various frequencies across the operating band. It's easy enough to measure SWR, but sometimes we need to know more detail than this

Design a J-pole Antenna - Enter the operating frequency in MHz to calculate the dimensions for your J-pole.

Collins Radio Association - This site was established to encourage hams, especially the newcomer, to share the enjoyment that comes from owning and operating Collins

KH6 - Hawaii Sea Q Maui - Hawaii, maui, Operating only as a ham radio station rental. Located in a private home, accommodating only ham operators. Two towers, two tribanders, one 40 2 el, one WARC. A FT1000MP, TS-940S, FT100, HF only no 6 mtrs No linear operations.

W6WGZ Madera County Amateur Radio Club - The Madera County Amateur Radio Club was formed for public service, education, scientific and recreational purposes of amateur radio and to elevate the standards of operating practices and ethics in amateur radio communications. San Joacquin Valley California

N6FQ Fallbrook Amateur Radio Club - It is our purpose to further the exchange of information and cooperation between members, to promote radio knowledge, fraternalism and individual operating efficiency

KA6NCR Relay Repeater Club - Welcome to the relay repeater club. we are a 2 meter/vhf amateur (ham) radio club in arcadia, california, operating on the ka6ncr repeater. we are looking for new members.

N1KT-Housatonc Amateur Radio Club - The Housatonic Amateur Radio Club was formed in 1995 to foster the development of Amateur Radio and advanced Ham Radio operating techniques, both through theory and on the air practice.

N4EH Lake Monroe Amateur Radio Society - The Lake Monroe Amateur Radio Society serves Seminole County and Central Florida, operating two 2 meter repeaters on 147.285 +600 and on 146.805 -600

The South Jersey Radio Association (SJRA( - The oldest continuously operating amateur radio club in the United States

N2OB Old Barney Amateur Radio Club - OBARC is an active organization participating in field day, various operating events, special events and contests

Long Island Amateur Radio Club - 575-Long Island Amateur Radio Simplex Club, Operating locally on 147.575 FM Simplex from Grid Square FN-30

The Texas DX Society - The Texas DX Society is an organization of radio amateurs in Houston, Texas who have a primary interest in DX chasing and contest operating on HF, VHF, and UHF.

European PSK Club - The European PSK Club, or EPC for short, is an informal club of amateur radio operators dedicated to maintaining high levels of amateur radio communications on PSK modes. Its purpose is to promote activity and good operating practice on the PSK modes on all amateur bands

W7DIN Desert Intertie Network - privately owned network of OPEN, Linked Repeaters operating in the Yuma area under the Club Callsign of W7DIN.

PSK31 Overview - Brief overview of PSK31 and basic operating techniques.

PacketRadio primer - The Packet Radio beginners guide to packet radio operating by Buck Rogers K4ABT

Voice Repeater Basics - Repeater operating is one of the most popular facets of amateur radio

AO-27 Satellite page - About operating the AO-27 satellite

ND5S6 160 meters operations - Antennas and operating note on 160 meters

Cooke International - Original Test Equipment Operating Service Manuals.

Aether - Aether is an ham radio logging for the Mac. Aether gives hams logging software that is as powerful, easy to use, and good looking as the operating system it runs on. Designed from the ground-up using Apple’s Cocoa, Aether supports the latest Mac OS X technologies, and provides the experience that Mac users expect.

PSK08 - G4JNT - PSK08 Software for the 56002EVM. PSK08 is a data communications mode identical in operation to PSK31, but operating at one quarter the speed, ie. approximately 8 symbols per second.

MacTNC - MacTNC is simple, configurable terminal software used by amateur (ham) radio operators to control a TNC (terminal node controller). MacTNC performs most of the same functions of other terminal software, but includes buttons for standard commands, and allows the user to configure additional buttons for special purposes. MacTNC works only user Mac OS X because it relies on Unix components of the current operating system.