The Uniden will be no more than 8w of power and the Connex 3300 will be 40w out of the box. It can be tuned to about 75w. Side band is only good the the person on the other end has the same. If you want range it cost money. And again they can hear you but do they have the power to get back to you? I used the Connex for many years, Rolling Rock to Miami, produce to PA then store drops in DC.