Dual antennas or single?

Dual antennas will give a directional pattern, just like beams on a base station that are pointed in a specific direction. A single antenna is more of an omni-directional pattern.

 

No the drivers side is the left side, In everything in life there are trade offs. If your pulling a van thats taller than your cab the only reason the drivers side is better is because trees keep breaking off your antenna. There for in this situation it is better to lose a little performance instead of losing multiple antennas.

I personally run a single antennas off the rear of my second trailer, mounter in the center of the rear. This cause's it to be directional forward.

 

This would be true on my tractor with a tankers but not when pulling a tall van.

 

Number one you are arguing about things you know nothing about. You obviously
do not understand how antennas and antenna systems work. The antenna is only part of the antenna system. The rook of you vehicle becomes the ground plane for the antenna system, there for the largest mass of sheet metal becomes the strongest signal because of its reflective properties. The trailer being higher than the antenna cause a null in the signal which cause a dead spot. so when you combine 2 antennas on on either mirror (co phasing) the nulls combined with the ground planes and the other antenna creates a carotid antenna pattern with has relatively good sides a null to the rear and a increase out the front.

Jolsen if I was not telling the truth there are enough HAM's on here that would correct me. <<< Deleted because it did not matter>>>,You can look up everything I'am telling you and your going to find its right on the money. Your the one whom is typing while being miss informed....

 

I am so confused. Some people say the wave bounce off the trailer and go flying backwards. Others say its drawn to the trailer then passes though the trailer off into the trees. So many things contradicting each other. It can't make to much of a difference with cb band what little bit of loss one might see from mounting on drivers side vs passenger side when dealing with cb in its limited spectrum. Now if we were talking ham waves where antenna set up is EVERYTHING. so I am lead to believe then I'm sure its a different story. And personally I think mine does something different then normal because it sits higher then my box. But that might just be because I like my set up and it works good for me

 

CB is no difference than the 10 ham band. What effect CB also effect 10 meters.

I don't want to get to involved as to how antenna patterns are created. Mainly because it can get very involved.

As an example the pattern will be different for a Flat Bed, a Tanker, Reefer, and a box trailer. And to some degree what is load in/on the trailer.

Another example is where the loading coil (if it has one) is placed.

While I don't claim to be an expert I do have many years of experience in 2 way radio. And I have had a commercial license for over 20 years and a ham license for 50+ years.


Leon
(kc0iv)

 

Go to page 11 and read how cophasing antennas works this is as clear as it gets.

http://www.radioamateur.eu/schemi/acc_antenna/HyGain_AV-12AVQ_user.pdf

The fact is when you run 2 antennas they will become directional.

 

I don't see a truck in any of the pictures so I still don't get it. Sorry read the thing but it was speaking Greek to me.

 

FACT IS if you feed 2 or more antennas they will become directional And you don't need a truck it works either way truck or not.

 

But how do you know which direction they will go? I saw a lot of figure 8s lol