Single antenna or co -phase

May have to go that route with the latest body on the cascadia...
Not seen one up close but looks like the mirror arm base is different.. If sooo ill have to decide on a small bunk volvo or a big bunk cascadia

 

Actually it 4x not 2....Grounding from mount to door then door to chaasie is to long...
Thats not grounding anyways...prob is that nowa days trucks need bonding just to help not cure the lack of counterpoise..All you did was basically add ant length and help to reduce static build up....
When bonding said form of transport needs surface area to travel and your basic wire doesnt have it..

 

No its not gonna work......Do you run a 24.5 on one axle and 22.5 on the other??????
Same idea..
Run 1 50 ohm coax to each ant via a switch.Now run coax from switch to radio..Tune each ant accordingly

 

Barely noticeable when distence testing..Might do 1 extra s unit(3db i think)...@ the trk stop its noticeable and based on the tune it might be noticed on more than 1 freq.

 

It is possible to run one element slightly long and the other slightly short according to AB7IF it supposedly gives you wider bandwidth.

 

Wider the bandwith the less efficient it will be aint it??

 

Usually. I hesitate to say always.

 

Yeah..I say the same about how cute i am to..lol

 

Except under some rare and exceptional circumstances, the coax length thing is something that was born on CB and, I guess, never die. Despite there being OTHER radio services that don't use specific lengths, this is one myth that has lived on 11 Meters since the beginning. Remember: it is NOT the coax that radiates the signal; its the ANTENNA that is "cut" or adjusted to a certain length to operate on a given frequency. The dual, co-phased antennas are one of those rare exceptions--the key word being "PHASED", or "IN PHASE" with one another. If you are pulling box trailers, the dual antennas *might* give some advantage. IF you are pulling flats, then ONE single antenna , preferably in the center, or just to the cab's rear would be better. Just be careful. For many shops that advocate dual antennas, its simply to sell twice the antennas! Choose wisely!

 

On these plastic trucks a duel set up might help with the lack of counterpoise..