You have a good radio there , you can either believe the numbers or not ? (it can get deep) a good antenna will be a plus for you , for without that , it really don't matter what the radios doing. If there should be a good radio shop around you that is known for good work ? You might invest 20 to 30 bucks in a good benched tune up on it . but by all means ,hook it up and see how things are first before you decide to do anything. Enjoy and welcome to the Forum .