I picked up an e-factor dual-band horizontal antenna two months ago, and finally got it mounted on the car a couple weeks ago. I was not satisfied with it at first. Everyone was giving me 5/9 reports but I couldn't hear anything but noise. Turns out the shield was making an intermittent connection (the coax did not come with the antenna). I fixed that and tried a couple of repeaters: some degradation on some repeaters and some enhancement on others. Cool. No need to run two antennas. This morning I tried beaconing on my long commute to work (2.5hrs) and immediately got a cw response... but the sender immediately got many other responses. So I listened to the cw pile-up I created on 144.200 for about an hour while all those stations worked on another. I like the antenna.