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05-25-2014, 04:57 PM
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#1
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Senior Member
Join Date: Jul 2012
Location: Sioux Falls
Posts: 212
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Antenna for XM radio
I am installing a new dash radio with satellite radio. The dealer said to mount the antenna on a metal surface or at least a metal plate preferably on the roof to improve the reception? I was wondering if I just place the antenna on the dash board and not on any metal plate. Would it receive a signal through the wind shield? A GPS works on the dash why wont the radio?
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Gary and Karen plus our furry kids Sable, Jetta, & Winston. 2014 Newmar DutchStar 4369 & 2013 Chevy Equinox.
Home is where we park it 
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05-25-2014, 05:04 PM
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#2
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Senior Member
Join Date: Jul 2011
Posts: 792
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My factory installed antenna failed. I put a new one in and put it in the cabinet above the drivers seat. Np problems.
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2011 Itasca Suncruiser, Jeep Grand Cherokee toad
MSgt retired USAF 1988, AA retired 2005
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05-25-2014, 05:19 PM
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#3
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Senior Member
Join Date: Jul 2012
Location: Sioux Falls
Posts: 212
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Quote:
Originally Posted by toneumanns
My factory installed antenna failed. I put a new one in and put it in the cabinet above the drivers seat. Np problems.
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You put it in the cabinet? Now I am really lost  How does it get it's signal?
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Gary and Karen plus our furry kids Sable, Jetta, & Winston. 2014 Newmar DutchStar 4369 & 2013 Chevy Equinox.
Home is where we park it
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05-25-2014, 05:32 PM
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#4
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Senior Member
Join Date: Apr 2009
Posts: 291
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Mine is in the upper cabinet above the sattelite receiver. Signal goes right thru the roof anywhere in the coach. Rkl
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2002 Journey 36GD, Roadmaster Blackhawk tow system, 2006 Jeep Commander Hemi, 2005 Jeep Wrangler...Webster NY/Ft Myers Fl.
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05-25-2014, 07:42 PM
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#5
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Senior Member
Join Date: Jul 2012
Location: Sioux Falls
Posts: 212
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Well that sounds easy. Thanks "toneumanns and RKL" I'll give it a try.
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Gary and Karen plus our furry kids Sable, Jetta, & Winston. 2014 Newmar DutchStar 4369 & 2013 Chevy Equinox.
Home is where we park it
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06-03-2014, 11:01 PM
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#6
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Junior Member
Join Date: Feb 2013
Posts: 3
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I mounted one by sticking it to the inside of the (class A) crown (fiberglass) just above windshield on passenger side. Ran antenna cable behind windshield post trim. No metal anywhere near it... Works great..
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06-04-2014, 07:16 AM
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#7
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Senior Member
Official iRV2 Sponsor
Overland Owners Club
Join Date: Nov 2013
Posts: 730
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Quote:
Originally Posted by fountain42
I am installing a new dash radio with satellite radio. The dealer said to mount the antenna on a metal surface or at least a metal plate preferably on the roof to improve the reception? I was wondering if I just place the antenna on the dash board and not on any metal plate. Would it receive a signal through the wind shield? A GPS works on the dash why wont the radio?
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Technically speaking, the XM antennas designed for use on autos are designed to have a ground plane mounting surface. (ferrous metal roof). While they will usually work on a non-metallic surface, the performance can be affected. Since most RV roofs are not made of ferrous metal, a marine antenna design will work better, since the ground plane is designed into the antenna itself.
In wide open spaces you probably will not notice the difference, when the signal starts to get interference (heavy clouds, light tree cover etc.) the marine style antenna will start to out perform when mounted on a fiberglass roof.
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Don & Anita Sweger
98 Overland Larado 4141SO
41' 325hp Cummins C8.3 Nicknamed "Lola"
Owners of: www.tvformyrv.com
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06-04-2014, 07:23 AM
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#8
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Senior Member
Thor Owners Club Ford Super Duty Owner
Join Date: Apr 2012
Location: Wherever the rig is parked
Posts: 8,092
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Quote:
Originally Posted by TVforMyRV
In wide open spaces you probably will not notice the difference, when the signal starts to get interference (heavy clouds, light tree cover etc.) the marine style antenna will start to out perform when mounted on a fiberglass roof.
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I agree. I started off with the stock magnetic antenna velcro'ed inside the front cap but kept getting signal dropouts. I then drilled the roof and mounted a marine antenna outside. No more dropouts.
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Bruce Dickson 2013 Thor Challenger 37GT, 5 Star Tune, Safe-T-Plus Steering Control with Air Trim, Roadmaster front and rear Sway Bars, SuperSteer rear Track Bar, Crossfires, 2018 Honda CRV . Full timers since Jan 2012.
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