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Thread: UHF Antenna Mounting (my plan. Tell me what you think)

  1. #1
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    UHF Antenna Mounting (my plan. Tell me what you think)

    One of my first jobs when I pick up my D3, will be to transfer my UHF into the new truck. I have a GME TX3100 which was mounted in my D2 with a 6.6db whip on the bonnet. The antenna came with the head unit as a kit.



    Here is my thought about the install.

    I am not sure where I'll put the head unit until I get the vehicle. The most likely location will be in the centre console where the factory nav goes.

    I would like two antennae on a two pole switch.

    Antenna 1 for hill country and convoy use (2.5-3.3db):

    Position option 1: Glass mount high on a rear side window
    Position option 2: Mounted to the roof rail

    In both cases, I am worried about it being ripped off by tree branches.

    Antenna 2 for highway and distance (6.6 or 12db not sure which one yet)
    Position option 1: Custom bracket mounted high beside the back door.
    Position option 2: Custom bracket through the grill.

    In both cases, I am worried about the antenna slapping the vehicle when hit by branches.

    Branches are a real issue in my local area.

    I guess in both cases I am looking for locations and mounting options that will stand up to off-road use. I will not be running a bullbar.

    So I am soliciting your thoughts on position and antenna type and make/model.

  2. #2
    Tombie Guest
    Switch will reduce your gain.. so drop that idea UHF Antenna Mounting (my plan.  Tell me what you think)

    Mount to roof rail.

    Use a stubby for around town and switch to a 4.5-6db when out and about.

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    Quote Originally Posted by Tombie View Post
    Switch will reduce your gain.. so drop that idea UHF Antenna Mounting (my plan.  Tell me what you think)

    Mount to roof rail.

    Use a stubby for around town and switch to a 4.5-6db when out and about.
    Is there a good route for cabling to the roof?

  4. #4
    LRD414's Avatar
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    UHF Antenna Mounting (my plan. Tell me what you think)

    The a-pillar trim can be removed but make sure you buy genuine clips for putting it back on. You may be able to thread the cable behind it without removal. Then you can get into the engine bay easily and through the firewall into the cab.

    I decided an antenna mount on the bonnet was easier and find the reception quite good with a 6.5dB. Side of the bonnet doesn't restrict visibility like grill.

    You can also get from the roof to cab via tailgate hinge cable grommet.

    Scott
    D4 TDV6 MY14 with Llams, Tuffant Wheels, Traxide DBS, APT sliders & protection plates, Prospeed Winch Mount w/ Carbon 12K, Mitch Hitch & Drifta Drawers
    Link to my D4 Build Thread
    D3 2005 V8 Petrol
    Ex '77 RRC 2 door. Long gone but not forgotten.

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    Quote Originally Posted by LRD414 View Post
    The a-pillar trim can be removed but make sure you buy genuine clips for putting it back on. You may be able to thread the cable behind it without removal. Then you can get into the engine bay easily and through the firewall into the cab.

    I decided an antenna mount on the bonnet was easier and find the reception quite good with a 6.5dB. Side of the bonnet doesn't restrict visibility like grill.

    You can also get from the roof to cab via tailgate hinge cable grommet.

    Scott
    Thanks Scott. That's helpful.

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    Quote Originally Posted by InMused View Post
    Is there a good route for cabling to the roof?
    By gently lifting the windscreen edge of the exterior A pillar trim you can slide an aerial cable in under it. This feeds directly into the engine bay. At the top end I had to take a very small notch out of the end of the roof rail rubber trim strip and the cable will run from the A pillar trim up under the rail trim to where ever you want it. I had a simple plate fixed at the front rail bolt to attach the aerial base. The aerial base sat flush with the roof (in the rail gutter).

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    I ran my cable up the A trim..easy... and the aerial is mounted on an "adjustable" base (attached to my roof rack) which can be folded back out of harms way either by hand (from the drivers window) or it will be "pushed" back when it gets hit by any low hanging branches (I set the tension on the mount just right)...
    seems to work pretty well.

    cheers

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    Is it practical to run a 1.4M 6.5Dbi antenna on a roof rail?

    Looking at this ANU1000 Town & Country Antenna Pack - UHF CB Accessories - Oricom UHF CB Radios

    Really wanted to use the rwc, the 1.4M will over hang the roof about 150mm which is perfect but would the 3dbi interchangeable even work in that position?

    Sounds strange to have a 1.4M antenna sticking from the roof rack.

    Maybe i'll just run both, 6.5 at the rear and the 3.5 on the roof. Will mean having to buy two mounts that's all.
    Plan on adding a 7.5 dbi phone antenna too https://telcoantennas.com.au/site/CD2197

  9. #9
    Tombie Guest
    No need for such a tall antenna on the roof rail..

    Mounting it to the RWC will greatly reduce the ability to receive/transmit forwards - almost as effective as a 1/4 wave on the roof rail

  10. #10
    Tombie Guest
    Don't run a switch either - they reduce effectiveness of the antenna.

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