CB antenna - single or dual stick?

[CslRkH2]

You want a large ground plane for the Antenna to work best. Interestingl your great reception will be from the antenna toward the side with the most metal. So if you mount it in the rear passenger, your best reception will be forward to the driver which would be optimal for Interstate Highways. The dual setup in the middle of the roof would provide good reception front and back straight ahead.

Everyone I;ve talked to and the websites like FireStik state yo need 18' coax length. I'm not sure that guy you spoke with was correct in this instance.

The wattage is irrelant I think because the CB's only transmit at 2-5 watts.

When you use your meter to tune the antenna, make sure to put any caps on the end of the antenna on for each measurement. The presence of the caps changes the readings. Yes your antenna needs to be in its final location before youi start tuning.

I bought the Swival with the Spring and it seems work good.