Free 7 Day Trial RV GPS App RV Trip Planner Campground Reviews RV Maintenance Free 7 Day Trial ×
RV Trip Planning Discussions

Go Back   iRV2 Forums > MOTORHOME FORUMS > Class C Motorhome Discussions
Click Here to Login
Join iRV2 Today

Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts.
Reply
  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on iRV2
 
Thread Tools Search this Thread Display Modes
 
Old 06-19-2021, 03:16 PM   #1
Member
 
Join Date: Dec 2010
Posts: 63
CB radio install

Has anyone installed a CB radio in their RV? If so, where did you install the antenna ( best place for reception ) and how did you run the cable without having to tear up walls? I want to mount mine around the dash someplace where its convenient while driving. Thanks in advance. By the way, I have a class C Entegra Esteem 29V
Richie is offline   Reply With Quote
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!

Old 06-19-2021, 03:33 PM   #2
Moderator Emeritus
 
TXiceman's Avatar


 
Vintage RV Owners Club
Texas Boomers Club
Oklahoma Boomers Club
Ford Super Duty Owner
Join Date: Aug 2000
Location: Full Time, TX Home Base
Posts: 19,896
Blog Entries: 21
On our class C, i used one of the through the glass antennas on a window in the side of the overhead bunk area. If that is not good for you look at the FireStix NGP antennas.Firestik Antenna Company Home Page

You can read about the different grounded or non-grounded antennas. In any case, I would not go shorter than a 3 ft antenna wit h1/2 to 2/3 of it above the roof. Also use a spring mount on the antenna.

You will also need to get the antenna SWR (standing wave ratio check and the antenna tuned for your installation. With improper SWR, the antenna can back feed into the radio and run the radio and performance will be poor.

As for the radio, you can mount it on the side of the engine cover. I carried a CB under the back seat for 15 years and finally tossed it in the trash. It was never very useful for me. Too much trucker garbage for me.

Ken
__________________
Amateur Radio Operator (KE5DFR)|Full-Time! - 2012 6.7L Ford Crew Cab Dually -2013 HitchHiker Champagne 38RLRSB - Travel with one Standard Schnauzer and one small Timneh African Gray Parrot
TXiceman is offline   Reply With Quote
Old 06-19-2021, 03:42 PM   #3
Senior Member
 
Winterbagoal's Avatar
 
Join Date: Mar 2017
Location: Sarnialabad, Peoples Republik of Canuckistan
Posts: 1,841
https://www.irv2.com/forums/f55/cb-r...ll-533460.html
__________________
All comments are my opinions, and worth exactly what you paid for them.
2018 (2017 Sprinter Cab Chassis) Navion24V + 2016 Wrangler JKU (sold @ ????) - 2016 Sunstar 26HE (sold @ 4600 miles) - 2002 Roadtrek C190P (sold @ 315,000kms)
Winterbagoal is offline   Reply With Quote
Old 06-20-2021, 03:07 PM   #4
Member
 
Join Date: Jun 2018
Posts: 32
CB antenna mount

I have an older Class A RV. It came with a CB antenna already installed above the driver side mirror (Iíve included a photo). Back in the 80ís people would mount CB antennas on both mirrors of their pickup trucks (totally overkill).
I still have a small magnetic mount CB antenna in my garage. That might be a good option for you. Walmart sells them for around $15. I would think the most difficult part is routing the wire inside the cabin.
Attached Thumbnails
Click image for larger version

Name:	A6A55A23-C586-4B38-A0DB-9096A44B83C2.jpg
Views:	9
Size:	126.8 KB
ID:	332913  
Stannman is offline   Reply With Quote
Old 06-24-2021, 12:00 PM   #5
Senior Member
 
Healeyman's Avatar
 
Join Date: Nov 2008
Posts: 493
Quote:
Originally Posted by Richie View Post
where did you install the antenna
My antenna is centered on the hood. I ran the cable under the hood and in the driver's door.

I have a pair of Midland hand-held units that I use in the RV and in the car.

They work VERY well.

Tim



Healeyman is offline   Reply With Quote
Old 06-24-2021, 12:48 PM   #6
Senior Member
 
Join Date: Sep 2018
Location: Moline, IL
Posts: 598
Quote:
Back in the 80’s people would mount CB antennas on both mirrors of their pickup trucks (totally overkill).

Not necessarily. A properly designed and installed co-phased 2 antenna system creates some directionality at right angled to a line drawn between the 2 antennas. On a vehicle, this would be in the direction of travel.
__________________
2014 Itasca Sunstar 31KE
1988 Itasca Suncruiser 31RQ
1968 Travco 21'
SLOweather is offline   Reply With Quote
Old 06-24-2021, 12:57 PM   #7
Senior Member
 
Join Date: Sep 2018
Location: Moline, IL
Posts: 598
Consider a marine CB antenna. They are designed for no-ground plane installation, and come in an adjustable ratchet or a lift-and-lay mount. I did a lift-and-lay on our last motorhome. Here's the base of a Tram L&L mount. The antenna itself is 3' long, top loaded. It should be able to be mounted vertically, and the antenna raised vertically up, or lifted and swung 108 degrees down for clearance. I like Tram marine antennas. I have a Tram marine Sirius XM antenna on my current motorhome.



__________________
2014 Itasca Sunstar 31KE
1988 Itasca Suncruiser 31RQ
1968 Travco 21'
SLOweather is offline   Reply With Quote
Old 06-24-2021, 12:59 PM   #8
Senior Member
 
Join Date: Oct 2017
Location: Elk Grove CA
Posts: 1,147
Quote:
Originally Posted by TXiceman View Post
As for the radio, you can mount it on the side of the engine cover. I carried a CB under the back seat for 15 years and finally tossed it in the trash. It was never very useful for me. Too much trucker garbage for me.
Ken
I agree with Ken on CB in general. The only reason I can see for having a CB is to communicate with a companion RV, or with a family member or friend who's away from the RV while parked, in which case a handheld FRS radio (no license required).

https://www.fcc.gov/consumers/guides...-keeping-touch

Magnetic mounts are fine if there's a metal attachment point. Tim's hood solution kills two birds with one stone, presumably it's a magnetic mount but, even if it's not, being on the metal hood, provides a good "ground plane". The same antenna, mounted on the fiberglass roof wouldn't be nearly as effective unless you added a sufficiently large metal plate to provide the ground plane.

The link Winterbagol posted gives some pretty good info.

CB and other radio antennas are affected by everything around them so location, grounding, etc. all have an effect on them. You'll find that it's part science and part "magic". This is especially apparent as the frequency range increases. CB at 27 mhz is just below the VHF (very high frequency) range which starts at 30 mhz which means it's relatively sensitive to these issues.

Ken also mentioned SWR. You can get a relatively inexpensive SWR meter on Amazon, which will help you in determining the best setup (you want to be as close to 1:1 SWR as possible. There are several here for under $30:

https://www.amazon.com/s?k=swr+meter...l_4lsgufldx6_e

Ken and I are both amateur radio operators or "Hams". If you find you really get interested in this radio stuff, the FCC Amateur Radio Technician's license exam isn't too difficult. Local Amateur radio clubs offer training sessions, in some cases, one day sessions culminating in the exam.

One more thing - The type of coaxial cable you use between your radio and antenna is critical:

https://www.rightchannelradios.com/b...ide-to-cb-coax

Bob
KJ6SVX
__________________
BobC
2002 Itasca Suncruiser 35U
BCam is offline   Reply With Quote
Old 06-24-2021, 01:51 PM   #9
Member
 
Join Date: Dec 2010
Posts: 63
Quote:
Originally Posted by BCam View Post
I agree with Ken on CB in general. The only reason I can see for having a CB is to communicate with a companion RV, or with a family member or friend who's away from the RV while parked, in which case a handheld FRS radio (no license required).

https://www.fcc.gov/consumers/guides...-keeping-touch

Magnetic mounts are fine if there's a metal attachment point. Tim's hood solution kills two birds with one stone, presumably it's a magnetic mount but, even if it's not, being on the metal hood, provides a good "ground plane". The same antenna, mounted on the fiberglass roof wouldn't be nearly as effective unless you added a sufficiently large metal plate to provide the ground plane.

The link Winterbagol posted gives some pretty good info.

CB and other radio antennas are affected by everything around them so location, grounding, etc. all have an effect on them. You'll find that it's part science and part "magic". This is especially apparent as the frequency range increases. CB at 27 mhz is just below the VHF (very high frequency) range which starts at 30 mhz which means it's relatively sensitive to these issues.

Ken also mentioned SWR. You can get a relatively inexpensive SWR meter on Amazon, which will help you in determining the best setup (you want to be as close to 1:1 SWR as possible. There are several here for under $30:

https://www.amazon.com/s?k=swr+meter...l_4lsgufldx6_e

Ken and I are both amateur radio operators or "Hams". If you find you really get interested in this radio stuff, the FCC Amateur Radio Technician's license exam isn't too difficult. Local Amateur radio clubs offer training sessions, in some cases, one day sessions culminating in the exam.

One more thing - The type of coaxial cable you use between your radio and antenna is critical:

https://www.rightchannelradios.com/b...ide-to-cb-coax

Bob
KJ6SVX
Thanks guys. What if I mount the antenna on the very top of my roof ladder and run my coaxial wire under the MH to the engine compartment and go through the firewall to my dash. Would my ladder be a ground or do I still have to use an antenna that does not need a ground? I am trying to get distance. Thanks for any help on this topic.
Richie is offline   Reply With Quote
Old 06-25-2021, 06:37 AM   #10
Senior Member
 
Join Date: Oct 2017
Location: Elk Grove CA
Posts: 1,147
Quote:
Originally Posted by Richie View Post
Thanks guys. What if I mount the antenna on the very top of my roof ladder and run my coaxial wire under the MH to the engine compartment and go through the firewall to my dash. Would my ladder be a ground or do I still have to use an antenna that does not need a ground? I am trying to get distance. Thanks for any help on this topic.
I've never tried it but, from what I've read, the ladder won't be that effective. You'll have to connect to either the chassis or install a sheet metal ground plane on the roof. Personally I like the sheet metal approach. You can easily experiment with different sizes of metal plates without permanently installing them, just don't drive. A big advantage is you can install it over your cab, shortening your coax run.

Here are two sites that may help:

https://www.thunderpole.co.uk/cb-rad...oundplane.html



The video is about a ham radio installation, but the principles are the same.
__________________
BobC
2002 Itasca Suncruiser 35U
BCam is offline   Reply With Quote
Old 06-25-2021, 07:36 AM   #11
Senior Member
 
Winnebago Owners Club
Workhorse Chassis Owner
Join Date: Nov 2018
Posts: 1,288
If the RV has an aluminum skin, that makes for about as good a ground plane as you'll ever get for a vehicle installation. If it's fiberglass, then you can either add a sheet metal groundplane as the guy did for his VHF/UHF mag mount in the video but for CB this would need to be much bigger (think the size of a trunk lid or car roof). Or just attach the antenna to something that's part of frame ground and call it done. Part of the definition of success here is what the expectation is. For CB if you can make contact with anyone for about a mile that's about as much as you may ever want or need. To get much more than that would require a more involved installation which I would guess is far beyond the interest level or attention span for most people. So skip "ideal", screw the antenna to something handy (ladder, A/C unit frame, roof gutter) and see if that meets the need. If it doesn't work you move it somewhere else. Once you hear what's on CB and the few times one may actually use it I wouldn't go through any extraordinary measures to create an ideal installation.

Mark B.
Albuquerque, NM
Mark_K5LXP is offline   Reply With Quote
Old 06-25-2021, 07:45 PM   #12
Member
 
Join Date: Dec 2010
Posts: 63
Thanks guys. You all have provided a wealth of information. I am going to try some of your ideas and hopefully one of them will serve my needs. Thanks again
Richie is offline   Reply With Quote
Reply

Tags
install, radio



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
How to upgrade radio/cassette player to radio/CD on 1986 Chieftain? amdg Winnebago Industries Owner's Forum 2 05-19-2017 04:47 AM
SeriusXM Satellite Radio - adapter to built in radio or standalone radio? vsheetz Technology: Internet, TV, Satellite, Cell Phones, etc. 9 04-02-2017 08:33 AM
Radio ID for satellite radio BINGHAMD Fleetwood Owner's Forum 5 10-10-2016 08:48 PM
Radio jensen & selector Speaker Radio/TV geraldvon Technology: Internet, TV, Satellite, Cell Phones, etc. 1 04-17-2014 02:43 AM
Bedroom wall radio and outside wall radio Plane nutty Fleetwood Owner's Forum 8 08-27-2012 02:47 PM


All times are GMT -6. The time now is 02:33 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2021, vBulletin Solutions, Inc.