137.500 MHz Wavelength Chart

137.620 MHz Wavelenght Chart

DC Power Coulping Diagram for Coax Cable PDF 40K

Turnstile, TR Array Antenna Plans PDF 267K

My home built TR Array antenna. I used 3/4" PVC pipe for the base and 2" PVC for the mast. The preamp is inside the mast. The plans can be found on this page to the upper left.