ABSTRACT.The South Pole Telescope (SPT) is a 10 m diameter, wide-field, offset Gregorian telescope with a 966 pixel, multicolor, millimeter-wave, bolometer camera. It is located at the Amundsen-Scott ...

One of the first antenna projects many new operators make is the simple 2-meter "J pole." Usually made out of copper plumbing pipe (and called by a variety of names including plumber's delight and ...