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 Mobile Antenna Installation Advice.... 
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Post Mobile Antenna Installation Advice....
Good evening, I am planning to install a 70MHz whip antenna on my Vauxhall Insignia SRI tourer, I have found some pre-tapped holes on the gutter which I assume are for roof bar mounting and I am making a simple L-plate to bolt into this feature and fit a 3/8th" stud mount for the antenna.

Now, my question is how the hell do I get the coaxial cable into the car without drilling holes? :scratch:

Any advice would be greatly appreciated.

Cheers

Rob.


Thu Dec 01, 2016 4:54 pm
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 Mobile Antenna Installation Advice.... 
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Post Re: Mobile Antenna Installation Advice....
When you find out Rob will you let me know as I too have a Insignia Tourer and have no idea how to mount and antenna on it tidily.

I am currently using a mag mount and feeding the coax in along the boot edge and under the carpet,

How will you attach the bracket to the rail those holes are not tapped??

Thanks
Trevor

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Thu Dec 01, 2016 5:03 pm
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 Mobile Antenna Installation Advice.... 
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Post Re: Mobile Antenna Installation Advice....
ei2glb wrote:
When you find out Rob will you let me know as I too have a Insignia Tourer and have no idea how to mount and antenna on it tidily.

I am currently using a mag mount and feeding the coax in along the boot edge and under the carpet,

How will you attach the bracket to the rail those holes are not tapped??

Thanks
Trevor

Trevor - you are right, they are not tapped, however I have a decent tap and die set so will tap them out then I can mount an ali angle bracket - got plenty of metal left over from antenna construction.
So is there enough gap in the boot door to close it on top of say RG58?


Thu Dec 01, 2016 5:08 pm
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 Mobile Antenna Installation Advice.... 
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Post Re: Mobile Antenna Installation Advice....
Just about and no more, if you were to go in at the side at the rail it might be easier

Trevor


2E1IIP wrote:

So is there enough gap in the boot door to close it on top of say RG58?

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Thu Dec 01, 2016 6:56 pm
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Post Re: Mobile Antenna Installation Advice....
The last Vauxhall I had was a Vectra, however the following also worked on several types of Ford Cars. I used to run the coax in via the rear Hatch Door using black double sided sticky pads to hold the coax to the roof bars or whatever. As a Service Engineer I was always opening and shutting the Hatch Door and never had any problems.

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Thu Dec 01, 2016 7:06 pm
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 Mobile Antenna Installation Advice.... 
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Post Re: Mobile Antenna Installation Advice....
Ok, great news! I have found some blanked off entry points near the gas strut on the boot door, which feeds inside the boot to one of the easily removable access panels so I ran a dummy length of mini RG8 low loss coax from the gutter near where the antenna will be mounted into the entry point and it fits like a glove, no pinching of the coax and no need for cable ties as the cowling securely holds the coax in place.

Will add the pics later.


Fri Dec 02, 2016 3:13 pm
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 Mobile Antenna Installation Advice.... 
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Post Re: Mobile Antenna Installation Advice....
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Fri Dec 02, 2016 3:31 pm
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 Mobile Antenna Installation Advice.... 
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Fri Dec 02, 2016 3:31 pm
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Fri Dec 02, 2016 3:32 pm
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 Mobile Antenna Installation Advice.... 
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Post Re: Mobile Antenna Installation Advice....
Looking good, won't be long before you are "on air". Have you found a way of getting the 13.8V DC Supply to the Radio? I used to feed mine in the Door Sills and under Carpets.

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Fri Dec 02, 2016 4:02 pm
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Post Re: Mobile Antenna Installation Advice....
If you go up under the glove box there is a very large grommet with a opening on it that will allow a wire to be ran to the battery with ease,

No pictures here, but It was a 10 minute job when I did mine,

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Fri Dec 02, 2016 4:21 pm
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 Mobile Antenna Installation Advice.... 
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Post Re: Mobile Antenna Installation Advice....
G4NVB wrote:
Looking good, won't be long before you are "on air". Have you found a way of getting the 13.8V DC Supply to the Radio? I used to feed mine in the Door Sills and under Carpets.

I was planing on putting a sealed lead acid battery in the boot and running the power cables in a similar fashion to what you have described.


Fri Dec 02, 2016 5:18 pm
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 Mobile Antenna Installation Advice.... 
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Post Re: Mobile Antenna Installation Advice....
ei2glb wrote:
If you go up under the glove box there is a very large grommet with a opening on it that will allow a wire to be ran to the battery with ease,

No pictures here, but It was a 10 minute job when I did mine,

Thanks for info Trevor - will look at that as a short-term solution to get me on air until I can afford a decent battery for the boot, got a nice ex-equipment case to house the battery with a big on/off switch on the panel and it fits nicely between the two strap anchor points on the side so an old leather belt strapped over the case will hold it nice and firm. :thumbsup:


Fri Dec 02, 2016 5:20 pm
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 Mobile Antenna Installation Advice.... 
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Post Re: Mobile Antenna Installation Advice....
You didn't say what type of antenna you are planning to install, but as it's for 4 Metres I would imagine that it's a 1/4 wave, due to length? If that's the case then I would recommend locating the antenna in the centre of the roof, not at the edge. It will perform far better with the ground plane all around the base rather than all to one side.
You seem to have sorted the routing of the coax. but FYI when I used to use a mag-mounted VHF/UHF, in the centre of the roof of course, I filed a semi-circular slot in the lip under the door seal to pass the coax through. The cable never got damaged, but it wore a mark in the paintwork where the coax vibrated in the air stream.
I have a base-loaded 5/8 wave antenna that I use static-mobile in the car.


Tue Dec 06, 2016 6:00 pm
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 Mobile Antenna Installation Advice.... 
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Post Re: Mobile Antenna Installation Advice....
The most effective vehicle antenna solution is a panel (hole) mount base.
Solves all the problem of trying to get the coax inside the vehicle and gives the best performance, as the antenna can be installed in the middle of the ground plane.
Of course, you should use good quality antenna parts and once fitted, forget about this part of your installtion!
http://panorama-antennas.com/site/index ... path=24_65
Many people worry about having a hole in the roof, but correctly installed, it won't leak or corrode and when you want to sell the car, you can always substitute the 1m length antenna for a short cellular type.
Cheers,
John.

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Mon Jan 16, 2017 1:36 pm
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