As I'm both a 'diehard scanner enthusiast' & an Amateur Radio Op, I've found that you can use two cheap antenna rotators, with either an ordinary TV antenna [for scanner hobby] or a 2/70cm antenna [normal versus SSB]. The idea, being to use one rotator to 'bore sight', in azimuth, on the desired signal. With a suitably designed bracket, the other rotator controls the vertical/horizontal antenna orientation. Naturally, you only need 90 degrees for polarity change; and it goes without saying, be sure your elements clear all parts of your antenna and guywire supports. !!! 'Crunchy' sounds eminating for your antenna location, usually means $$$.