SWR and bonding...

[Freightlinerbob]

On a Freightliner with a single mirror mounted antenna, I ran a braided piece from the door hinge bolt to the firewall bolt.

With or without, either way it is:
Ch. 1- 1.4:1
Ch. 40-1.7:1


My question is: does the bonding still help antenna performance or not?

 

[W5LZ]

Does bonding vehicle body parts have any benefit? Yes, it does. It probably won't have any particular affect on the SWR you see, but it can definitely have benefits in how the antenna behaves/radiates. And, can reduce the amount of noise the radio picks up from the vehicle.
That's the 'simple' answer, for a more detailed answer, for the 'why' it can help, I would suggest looking at K0BG's site. He does a much better job of explaining it than I can.
- 'Doc

 

[Freightlinerbob]

That's a good enough/ detailed enough answer for me. Thanks!

B

 

[norman mccandless]

number 4

i have a volvo 780 big trk and only use one mirror mount antenna and i found
that if you set swr on ch 1 and then set ch 40 the same some of the white
noise is reduced. example ch1 swr 1.5 ch 40 swr 1.5 go to ch20 and
check.