This winter I have been working on the design and construction of a compact
loop for 80 meters. The loop will be constructed from 72 ft of 3/4 in copper
pipe and will be in the shape of an octagon. The plane of the loop will be
vertical, and the loop will be remotely tuned by a vacuum variable capacitor
coupled to a geared stepper motor.

I have just finished constructing and testing the driver for the stepper
motor. See
http://tinyurl.com/bwobb for pictures and some information about the system.
Constructive comments will be appreciated.

John, N9JG