I've been trying to remember specifics about a phasing system that was sold commercially for a few years back in the 70s or 80s. It used two verticals and, depending on settings on the desktop, could
On 3/18/13 3:45 AM, Pete Smith N4ZR wrote: I've been trying to remember specifics about a phasing system that was sold commercially for a few years back in the 70s or 80s. It used two verticals and,
Here's the patent: http://www.google.com/patents?id=_WU6AAAAEBAJ&printsec=abstract&zoom=4&client=internal-uds#v=onepage&q&f=false 73, Roger Pete Smith N4ZR wrote: I've been trying to remember specifi
http://www.google.com/patents?id=_WU6AAAAEBAJ&printsec=abstract&zoom=4&client=internal-uds#v=onepage&q&f=false Interesting.. The antenna compendium article had a continously variable shifter (actuall
Artical in the Antenna Compendium Vol. 2 written by W5AH who worked for the company that sold them. He is a regular on TT. It switched in various lengths of feed line plus a RF transformer to get 180
I built a "Phase Box" with sections 2, 4, and 8 feet long. It can be used to vary the "phase" between two antennas - e.g. vertical arrays or stacked arrays, and also as a "Line Flattener" when using
Jim is right. I used a simple variable L network to create the required phase shift to convert my CC XM-240 into a rotatable, phased array that works really well. There's a Youtube video of me runnin