I am currently using the Remtronix now. LOVE that antenna... MUCH better than the stock one. I'm looking into a base antenna that covers all bands since I live close to a lot of towers and activity but far enough that the Remtronix doesn't pull in. I live close to Regan National Airport (KDCA) to only hear sporadic traffic. I live close to Washington DC but far enough where the Remtronix doesn't pull in the radio traffic with any consistency. There are other things I want to tune in to and I think having a base antenna will help get the most out of this expensive scanner. Hence me asking about solid base antennas.. Hope that helps...How far away from your location is the nearest site in the system? If you're not far away, the stock antenna or a Remtronix may be good enough.