Dual Whip Antenna's

[blackcoffee]

Hey guys girls, I've got two 102" whip antennas and only one is hooked up. I plan to buy another heavy duty mounting bracket for the right side of the rear bumper (the left is where the pre existing whip antenna is). How would I connect the two or make them both work at the same time?! Right now its just Left Antenna > Coax Cable > CB radio.

 

[kickitandholdit]

i heard from some of my red neck friends that it doesnt make much of a difference.

could be wrong

wire up 2 CBs

i would avoid splicing those wires though sounds like a bad idea lol

 

[95TwinTT]

The truckers have used the “Tennesee Twin Sticks”, for many years to improve signal strength ahead and behind them. It shapes the pattern of the transmission. The trick was, being such a low frequency on CB, the physical distance needed between the antenna’s, put them out on the edges of those “west coast” mirrors. If they are too close together, the desired effect is not achieved. AM radio is all about power. The stronger signal dominates.

Do some searching on truckers and CB radios. Those guys have figured out all the tricks. From what I understand, if you can’t get the antenna’s far enough apart, you are probably better off with one antenna.

 

[blackcoffee]

Alright ha. Thanks guys.

 

[arveetek]

I had dual whips on my pickup. All you need to get is a "T" connector from Radio Shack or a truck stop. My "T" connector attached directly to the back of the radio, and then each antenna cable attached to the "T" connector.

Mine looked like this:

Or you can get one that is the same on all three sides so you can use two short cables to the "T" connector, and then one long cable up to the radio.

Casey

 

[blackcoffee]

Oh I see! I wonder if having the two antenna's on each other side of the rear bumper is adequate room between the two to not jambel the signal. I'm gonna do alittle experiment in the next couple weeks it seems ha.

 

[kickitandholdit]

let us know how it works out

 

[95TwinTT]

You should just read up on the laws of AM Mobile Radio Transmitting. It’s a lot easier than experimenting.

Your truck becomes the “ground plane”. The precise placement of the antenna, determines the strength and direction of the signal. For Omni directional transmission, the antenna would have to be dead center in the mass of the truck.

The antenna on the left rear, will project the strongest signal across the right front of the truck.

Over the road truckers wanted the strongest signal, ahead and behind their trucks to chat with other truckers. The mirrors offered a place for the needed 102” distance between the dual antennas, also being centered (front to back) for all practical purposes on the tractor.

A CB with one antenna, will be more efficient than one with two antenna’s that are too close together.

The total answers are just a quick search away on Google.

 

[drifter666]

a buddy of mine ran dual fiberglass antennas on a k5 and it worked great for him he mounted them on the piece behind the front door but before the removable top. He was running a cobra 29 i think.

 

[TigerEyz3]

You'll need 9ft (108") between the antennas for optimum effect... unless you've done something special, your rig isn't wide enough for the needed distance and you'll get a stronger, more efficient signal using a single antenna.

 

[blackcoffee]

Thanks for all the input guys. The only way I'd run dual antenna's is to mount one on my front winch bumper and one on my rear bumper.

 

[ARTEMIS1759]

This is pretty much covered but here is what I learned as a CBer back in the mid 90s. No I was not a trucker. About the max height unless mounted one front and one rear is the standard 4.5' whips. What happens is if they are any larger is it will send the signal from one into the other and it cancells them out. If the tips of the antennas touch then they e=are too close. Now I a sure they are still around (I bought mine from a guy) a black box that boosts the output works best. My CB would reach around 27 miles. I heard some guys that could play skip with like Mexico and stuff. Now mind you it is an illegal mod. They are hard to find. If you have anymore questions just ask.