Dual Whip Antenna's

Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.

blackcoffee

O.G. Black.
Joined
Aug 17, 2009
Posts
1,292
Reaction score
6
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

Full Access Member
Joined
Dec 7, 2009
Posts
438
Reaction score
1
Location
GA
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

Full Access Member
Joined
May 23, 2009
Posts
357
Reaction score
0
Location
Minnesota
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. :)
 

arveetek

Full Access Member
Joined
Feb 5, 2010
Posts
165
Reaction score
6
Location
Granby, Missouri
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:

con-t.jpg

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
 
OP
OP
blackcoffee

blackcoffee

O.G. Black.
Joined
Aug 17, 2009
Posts
1,292
Reaction score
6
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.
 

95TwinTT

Full Access Member
Joined
May 23, 2009
Posts
357
Reaction score
0
Location
Minnesota
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

Member
Joined
Mar 9, 2010
Posts
40
Reaction score
0
Location
Plainville, CT
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

Slow and Steady
Joined
Feb 11, 2010
Posts
676
Reaction score
44
Location
TN
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.
 

Forum statistics

Threads
132,748
Posts
1,873,517
Members
97,573
Latest member
Roblusk

Latest posts

Top