|
|
02-07-2017, 04:28 PM
|
#1
|
Senior Member
Tiffin Owners Club Coastal Campers Freightliner Owners Club RV Trip Wizard
Join Date: Jul 2015
Location: Live Oak, Florida
Posts: 698
|
CB antenna/mount local on THOR class A
I have read a lot with no good conclusions or great ideas of which CB radio no ground plane (NGP) antenna to buy and better yet no GOOD/EASY solution for the mount or for the mounting location.
I prefer the mirror but that's out. I have the large plastic mirrors. The through the glass antenna is worthless. I don't want to run a 50 foot cable from a mount on the rear ladder assembly. The thought of drilling through the side (which opens up potential delamination issues) is not favorable. Each of the mounts I have seen bolt either horizontal or vertically to something.
Does anyone have the BEST idea? Where did you mount the antenna and what brand/model did you use. Is your SWR setting the best?
It's something that has always been so easy with cars and trucks. Presenting a fiberglass RV front shell and it becomes rocket science.
|
|
|
|
Join the #1 RV Forum Today - It's Totally Free!
iRV2.com RV Community - Are you about to start a new improvement on your RV or need some help with some maintenance? Do you need advice on what products to buy? Or maybe you can give others some advice? No matter where you fit in you'll find that iRV2 is a great community to join. Best of all it's totally FREE!
You are currently viewing our boards as a guest so you have limited access to our community. Please take the time to register and you will gain a lot of great new features including; the ability to participate in discussions, network with other RV owners, see fewer ads, upload photographs, create an RV blog, send private messages and so much, much more!
|
02-07-2017, 07:07 PM
|
#2
|
Junior Member
Join Date: Oct 2016
Posts: 24
|
Watching this thread with interest- I have the same questions.
__________________
2014 Thor A.C.E. 29.2 "NONAPOP"
2015 Chevrolet Sonic
|
|
|
02-08-2017, 02:46 PM
|
#3
|
Senior Member
Damon Owners Club Workhorse Chassis Owner
Join Date: Mar 2009
Posts: 24,024
|
The A Pillar on a motor vehicle is the one just behind the windshield. And on my Damon (A Thor Brand) lots of cables run inside it.. I moved them aside and drilled a small hole outwards. Notes follow as to where.
Then I took half a mirror mount (The half the antenna hooks to) This mount waw two pieces of metal, One was L-Shaped (Held antenna) the other almost Flat, save for the part not holding the antenna on the first had a "V" shaped spot, as did the other half, this was designed to clamp over the "Arm" of a West Coast Mirror.. I tossed the "Back" half into my spares box.
Replaced the 4 Bolts with 4 Lag bolts (Stainless is good if you can find 'em)
The "V" went over the hole and the RG-58 Comes out under the bracket (Which by the way was filled with sealant, GOOP to keep moisture and such at bay) Loops down and around and up to where it needs to connect. All sealed with Antenna Tape or Rescue Tape (Silicon Self-Fusing Tapes).
How high to drill?
I set it so the tip of the antenna, when mounted, is about 1" higher than the next highest point on the RV.. That way, if the antenna hits, BACK OFF.
__________________
Home is where I park it!
|
|
|
02-10-2017, 11:11 AM
|
#4
|
Senior Member
Tiffin Owners Club Coastal Campers Freightliner Owners Club RV Trip Wizard
Join Date: Jul 2015
Location: Live Oak, Florida
Posts: 698
|
Quote:
Originally Posted by wa8yxm
The A Pillar on a motor vehicle is the one just behind the windshield. And on my Damon (A Thor Brand) lots of cables run inside it.. I moved them aside and drilled a small hole outwards. Notes follow as to where.
Then I took half a mirror mount (The half the antenna hooks to) This mount waw two pieces of metal, One was L-Shaped (Held antenna) the other almost Flat, save for the part not holding the antenna on the first had a "V" shaped spot, as did the other half, this was designed to clamp over the "Arm" of a West Coast Mirror.. I tossed the "Back" half into my spares box.
Replaced the 4 Bolts with 4 Lag bolts (Stainless is good if you can find 'em)
The "V" went over the hole and the RG-58 Comes out under the bracket (Which by the way was filled with sealant, GOOP to keep moisture and such at bay) Loops down and around and up to where it needs to connect. All sealed with Antenna Tape or Rescue Tape (Silicon Self-Fusing Tapes).
How high to drill?
I set it so the tip of the antenna, when mounted, is about 1" higher than the next highest point on the RV.. That way, if the antenna hits, BACK OFF.
|
Thank you,
Is there any way you could provide photos? If you don't mind please provide the brand and model of the antenna you used and the mount (if one that that did not come with the antenna) please.
|
|
|
02-10-2017, 11:18 AM
|
#5
|
Senior Member
Fleetwood Owners Club Ford Super Duty Owner
Join Date: Jun 2012
Location: SoCal
Posts: 15,749
|
I am not a fan of the performance of a NGP antenna. Instead one option is to use a magnetic mount antenna. Screw/tape a metal sheet about 2' square/round to the roof to hold it and act as a ground plane. Cable entry via Winegard wire entry plate.
__________________
Vince and Susan
2011 Tiffin Phaeton 40QTH (Cummins ISC/Freightliner)
Flat towing a modified 2005 Jeep (Rubicon Wrangler)
Previously a 2002 Fleetwood Pace Arrow 37A and a 1995 Safari Trek 2830.
|
|
|
02-10-2017, 11:19 AM
|
#6
|
Senior Member
Winnebago Owners Club Workhorse Chassis Owner
Join Date: May 2016
Location: Kamloops, BC, 60 miles from the Center of the Universe according to the Rinpoche, of the SF monks.
Posts: 7,387
|
I have the factory mounted antenna. It's mounted above the driver's window. Want a pic?
__________________
Happy Glamping, Norman & Elna. 2008 Winnebago Adventurer 38J, W24, dozens of small thirsty ponies. Retired after 40 years wrenching on trucks! 2010 Ford Ranger toad with bicycles or KLR 650 in the back. Easy to spot an RVer, they always walk around with a screwdriver or wrench in one hand!
|
|
|
02-10-2017, 04:50 PM
|
#7
|
Senior Member
Damon Owners Club Workhorse Chassis Owner
Join Date: Mar 2009
Posts: 24,024
|
I do not know how to post photos here. Sorry. Let me check dropbox.
https://db.tt/exaWIk1rLS
https://db.tt/sucULnaGeb
With luck, that will do it.
Well that is the link to the Photos. that checks, but I can't view them without log in .. Will work on that
__________________
Home is where I park it!
|
|
|
02-10-2017, 11:41 PM
|
#8
|
Senior Member
Tiffin Owners Club Coastal Campers Freightliner Owners Club RV Trip Wizard
Join Date: Jul 2015
Location: Live Oak, Florida
Posts: 698
|
Zoomed out photo
Thanks for the photos. Do you have one that is from a short distance from the coach you could share?
Thanks.
|
|
|
02-11-2017, 09:23 AM
|
#9
|
Senior Member
Damon Owners Club Workhorse Chassis Owner
Join Date: Mar 2009
Posts: 24,024
|
No just those two,, I thought #1 was a decent close up... If you need me to back off I can snap another later today when I go to store..
The antenna appears slanted in one of the photos, it is not that much.. Just so you know.
I have to go to the store in a bit, will try to remember to photo then.
__________________
Home is where I park it!
|
|
|
02-12-2017, 11:42 AM
|
#10
|
Senior Member
Tiffin Owners Club Coastal Campers Freightliner Owners Club RV Trip Wizard
Join Date: Jul 2015
Location: Live Oak, Florida
Posts: 698
|
My thoughts so far
I'm leaning more and more to a 2 square foot plate on the roof and use a magnetic mount. I can use some of the dicor and butyl tape I have left over and just go buy a steel plate. Hopefully Lowes would have something.
|
|
|
02-12-2017, 04:52 PM
|
#11
|
Senior Member
Damon Owners Club Workhorse Chassis Owner
Join Date: Mar 2009
Posts: 24,024
|
Two thoughts on that 2 square foot or even 2 foot square plate (not the same thing)
You need an 18 foot square or at least 18 feet in the long direction by the width of your RV recatangle.
And if your RV is 12 foot tall there is a great chance of that antenna getting knocked over by things over the road.. IN theory (But I doubt in practice) you can be cited if the tip of the antenna is over 13'6".
NO, I would not go that route
I know many folks pho-pho NGP antennas. but I have been known to design some of my own for some bands I work. and there is NO disadvantage to a NGP other than length
A proper antenna is 1/2 wavelength (rounded that's 18 feet for cb or 5.5 meters) Anything less is a comprimise.
So when you put a full length 9' Whip on a car, well the frame of the car is the other 9'.. That is why the metal plate needs to be 18' (9 to the front, 9 to the back) for best results.
The shorter antennas are "Loaded" (electronically lengthened) by some means. but for an NGP your effect length, Is less than the total whip length, which is already shorter than a full quarter wave whip.
Still.. For other bands I design and use NGP antennas all the time. and they work very well.
__________________
Home is where I park it!
|
|
|
02-12-2017, 07:42 PM
|
#12
|
Senior Member
Tiffin Owners Club Coastal Campers Freightliner Owners Club RV Trip Wizard
Join Date: Jul 2015
Location: Live Oak, Florida
Posts: 698
|
Makes me want to throw the CB in the garbage
All of this is TOO much work for a CB. I might just throw it in the garbage and forget about having one at this point.
1. I'm not going to drill holes in the side of my coach for fear of delamination.
2. Since the metal plate idea that has been used by some seems to be a bad idea. Not worried about the height thing, just want it to be worth my time and energy. I will not be putting a 18 foot by 9 foot plate.
3. I don't completely understand the mirror mount idea.
This is taking far more time than I expected with no results.
|
|
|
02-20-2017, 06:29 PM
|
#13
|
Senior Member
Tiffin Owners Club Coastal Campers Freightliner Owners Club RV Trip Wizard
Join Date: Jul 2015
Location: Live Oak, Florida
Posts: 698
|
Revisited and decided to buy Antenna
I bought this antenna today:
FireStik FG2648-B Two foot No-ground plane CB antenna kit (Black)
Amazon Prime
$47.91
https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1
|
|
|
02-21-2017, 06:01 AM
|
#14
|
Senior Member
Damon Owners Club Workhorse Chassis Owner
Join Date: Mar 2009
Posts: 24,024
|
__________________
Home is where I park it!
|
|
|
|
|
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
|
|
Posting Rules
|
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
HTML code is Off
|
|
|
|
» Recent Discussions |
|
|
|
|
|
|
|
|
|
|
|
|
|