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Author Topic: Forward slanted CB antennas  (Read 382 times)
K3DC
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Posts: 88




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« on: June 01, 2008, 07:36:46 PM »

I've got a question on something I've seen and been curious about.

A few times I've seen trucks with CB antennas on their mirror that were slanted forward.  There is even a large Ford pickup in my sub with the same arrangement.    

Why do they do this?  Does it effect the takeoff angle?

73,
Chris
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KB9CRY
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Posts: 4283


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« Reply #1 on: June 01, 2008, 07:51:01 PM »

Why do they do this?

So they don't scrap on the underpasses.

Does it effect the takeoff angle?

Yes, but with only 5 watts who's counting?
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K9NW
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Posts: 447




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« Reply #2 on: June 01, 2008, 08:43:26 PM »

I know a few long-haul truck drivers.  They do it so the antenna becomes mostly vertical from the wind resistance when they're going down the road at 60+MPH.  Whether it really matters or not is open to debate but they feel better about it.

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W7ETA
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Posts: 2527




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« Reply #3 on: June 01, 2008, 08:53:24 PM »

Ask 'em.
Be prepared for strange answers though.
Lots of rumors and partial information in CB land.
Bob
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N3OX
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« Reply #4 on: June 01, 2008, 09:36:49 PM »

"Lots of rumors and partial information in CB land. "

And not in ham radio?

;-)
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73,
Dan
http://www.n3ox.net

Monkey/silicon cyborg, beeping at rocks since 1995.
N4CQR
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Posts: 566




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« Reply #5 on: June 02, 2008, 05:20:28 AM »

Actually I have wondered the same thing...

BTW, good one there, Dave. hehe...

N4CQR
Berea.KY.USA.Earth
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KB1GTX
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Posts: 460




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« Reply #6 on: June 02, 2008, 11:01:14 AM »

Their theory is a lower take off angle, but it's only in the front direction.  But in my experience running ONE antenna straight up out ranges the two every time.
My primary hobby of ham radio is trying to squeeze every FOOT of range out of low power vhf signals and I enjoyed the same back in my cb days too.
Dave
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K1CJS
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Posts: 6034




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« Reply #7 on: June 02, 2008, 06:57:12 PM »

K9NW has the answer for the reason--when that habit was started.  Then the antennas were swung forward a little bit so they would be vertical when the truck was going down the road.  

After, some truckers started putting more of a tilt on them, probably because they believed some of the malarky floating around that the signal strength toward the front was better when the antennas were pointed like that.  Other drivers did it because they thought it made their rigs look sharp.

Like one poster said, you can never tell--because of the trucker mentality.  BTW, before you start throwing stinging remarks, I still drive occasionally for my cousin.

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