I would like to try increasing my range for Close Call by using a beam antenna, like the Grove Scanner Beam at http://www.grove-ent.com/BEAMII.html. I would be using it in a mobile application, like sitting in a parking lot and pointing it towards a building or complex. I've heard that these beam antennas should be used vertically for VHF/UHF Narrow-FM. Is that just for omnidirectional reception? Or would this probably work for me? Thanks.