ground plan

160m double L antenna - Planning and modeling a special L antenna for Top Band

Slim Jim Antenna for 144 Mhz - A slim Jim antenna plan for two meters band

Vertical Antenna for 20 15 10 meters - A small, multiband vertical which cover 20, 15, 10 meter amateur radio bands. This easy to build ham radio antenna could serve as an emergency or field day antenna.

G5RV Antenna by PA1GF - Sizing of G5RV Antenna with plan and the ZS6BKW variation

UK Band Plan - RSGB Bandplan, effective from 1st December 2006

New Zealand Ham Radio Band Plan - These charts show the New Zealand bandplan

HALO Project makes amatuer rocketry history - Launch of a hybrid rocket from high altitude by untsville Alabama L5 Society

Submarine Communications - Submarine Communications Master Plan - December 1995

Grounding and Receiver Noise - An interesting article on grounding and receiver noise