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
Quad antenna calculator
- To get the dimensions for your quad, all you have to do is type in the center frequency of the range where you talk, or the frequency you use most and then click the Calculate button.
PJ2T Caribbean Contesting Consortium
- A contest club dedicated to fun, international friendship, and advancement of the contesting art through superior operating technique and maximum application of technology.
Tennessee Contest Group
- The Tennessee Contest Group (a.k.a. TCG) is a group of amateur radio operators (hams) who enjoy operating in competitive radio sporting events or "contests."
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.
RAM Mounting Systems, Inc.
- Ram mounting systems is a world leader for design and manufacturing of mounting applications. ram mounts offer more than 900 interchangeable components for unlimited uses and configurations.
DEHN, Inc. Surge & Lightning ProtectionPriority listing
- Offering transient voltage surge suppressor, TVSS, patch cables, surge arresters, surge protectors for lightning and power surge protection for electrical equipment, IT networks, communication systems, data lines, relay systems and solid state controllers.
- 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.
Black Cat CW Keyer
- Black Cat CW Keyer for Macintosh lets you send morse code from your computer. You can type out the text to be sent (immediately or buffered) as well as create and send from one key
- 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.
Using ferrite for interference suppression
- Excellent guide to using ferrite cores for interference suppression.
Understanding and Solving RF Interference and Noise Problems by Jim Brown K9YC Audio Systems Group, Inc. PDF File