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Old 03-19-2015, 03:48 AM   #1
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Best way to install antenna through roof?

We have a 2015 Coachman Sportscoach 404RB and I am installing a combination 4 wire antenna to support WIFI, GPS and Cellular. The link is below:


Since this must be mounted on the roof, is there a best pathway to get the wires to the dash? I see the sat TV plate and the FM radio antenna already there and I was thinking about installing just to the driver or passenger side of the roof near the FM antenna. I see that the cabinets are too far forward to go straight through the top of them so I was hoping someone could provide guidance. What is the best method for adding an antenna to a roof?


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Old 03-19-2015, 04:54 AM   #2
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Are there cabinets or such coming farther back from the front cabinets along the side? if so then try drilding down into one of the ones on the DRIVER's side (Very good reason for this) use a sewer vent assemble with cap to bring the wires up through the roof or caulk well (your choice) then run cabinet to cabinet into the electronics bay.

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Old 03-19-2015, 08:58 AM   #3
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I would start by removing some componets, speakers, lights, etc from the ceiling in the area where you want the antenna to get a look at the construction. You might be able to see any obstructions or find a pathway to snake the wires. The insulation used in the ceiling also might influence the best routing. Fiberglass isn't to difficult to get through, solid foam not so easy.
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Old 03-19-2015, 09:39 AM   #4
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Be carefull here as there may not be any pathways.

Often existing wires are routed zig zag or through holes almost large enough.

How much length of wire do you have?

The easiest place is to mount to top of the vent for fridge or next to it.

You have a huge pathway from roof to near floor and a flat surface to mount to and easy to seal.

Power is also there.

For other places remove a light or speaker or something else mounted overhead and try to fish a wire from there.

Be sure you can get the wire end to end before mounting.

Once you can get the wire routed then just figure out if the area directy above is suitable and if it is drill up through the roof and mount it.

Be sure you know haw to properly mount and seal to the roof type you have.

Since newer unit touch base with manufacturer for suggestions as they may have prefered spot or process for things like this and sat antennas.

Good luck and report back.
Tony & Lori
1989 Country Coach Savannah SE
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Old 03-19-2015, 10:02 AM   #5
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Don't forget it requires a minimum 8X8 ground plate.

You will most likely need to add that.
2013 DSDP 4347, all electric, 450 H.P. ISL
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Old 03-20-2015, 05:09 AM   #6
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Thanks everyone for the feedback!

I worked on this yesterday and I found an access panel behind the upper front cabinets on the passenger side. Opening the panel, I found quite a bit of existing cable runs and a power source (used for the DVD). The antenna was mounted on a metal bracket behind the cabinet and the access panel was reattached. Because the front cap is fiberglass, the signal for the GPS, satellite radio and cellular is excellent all with no drilling the roof!

Thanks for everyone's feedback and I will use some of this information in the future if I need to put something up there.

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antenna, install, roof

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