How to get a better reception on Avanti Grande CB radio

In this radio they forget one IF filter out :-) ... like in many others type of cb radios (in an cheap one I do understand, but not in this one) , and there is a small smd resistor zero ohm (starp / bypass) in stead  ... remove this carefully, and then on the back side of pcb is easy to solder one refurbished filter.  Now the sensitivity and selectivity of the radio will be ok, like it was intended to be from the project.