Peterilt 579 antenna options

Jesus..There are options but haven the brain power and test equiment to test and try something different while understanding it is not always an option..

 

Dipoles Mounted to plastic fairing work for me on the Kenworth T2000 & Peterbilt 387.
Unfortunately the Freightliner Cascadia has a steel body with panels glued together which makes it difficult to attach something to the door and make it work which is why I would recommend attaching your antennas outside the fairings and grounding directly to the metal on the back of the cab which is a solid piece of Steel top to bottom.

 

the 579 stock antenna bracket only has a plastic cover over the rest of it. is not plastic bolted to metal it is a metal bracket bolted to the side of the metal cab. i have a 579 pete myself and i use the stock brackets but in saying that i did however run my own coax to the driver side bracket and only run on the driver side antenna im running a 5ft francis at the moment with a connex 4300 and its pretty good setup i get out 10 to 15 miles on good days and receive a lot more than that. if you take all the plastic apart on the inside of the truck and look at where the bracket is there are 2 ground wires running off them. peterbilt actually did the antenna brackets right in these trucks unlike the freightliner cascadia. also if you need help on installing a bigger radio in a 579 with out drilling holes i have a write up on here somewhere on what i did with mine as a connex wont fit in the cubby hole nor would i want it in there

 

Good info on how Peterbilt did it. If I move to a newer 579, it may have the same mounts.