New member Username: OscilentincIrvine, CA USA Post Number: 2 Registered: May-11 | RF Filters can cause lots of issue is not installed properly. As far as setting up your own unique antenna I would always check the frequencies being used so that they match up with the rf filter that you are using. here is a rock solid list of rf filters http://www.oscilent.com/catalog/Category/rf_saw_filter.htm |