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putting steel whip behind bunk

Discussion in 'CB Radio Forum' started by cuzzin it, Aug 30, 2015.

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  1. Aug 30, 2015 #1
    cuzzin it

    cuzzin it Road Train Member

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    i have a 579 petewith co phased 4 ft fiberglass antennas that are not going the distance i used to get with a single on the mirror. These mirrors have arms several inches thick and oblong in shape . So my question is how much of a 102 in whip has to be above the top of the bunk, to be worth while. It's a tanker yanker and has a big ole hose rack that easy mount. (or so it seems)
    Any ideas ? i'm guessing the tractor to be around 12 and a lot of the racks i load from are 12'6
     
    cuzzin it, Aug 30, 2015
    cuzzin it, Aug 30, 2015
    #1
    Ougigoug Thanks this.
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  3. Aug 30, 2015 #2
    BigJim63

    BigJim63 Light Load Member

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    A couple of years ago a gasoline tanker passed me with a 102 mounted to the catwalk. I think the truck was a Freightliner Columbia. I talked to him and his radio sounded nice and clear. I don't know the range he was getting because we were less than a mile apart in a hilly area. I drive a Cascadia day cab with a 102 mounted to the left door and this setup works great. A quarter wave antenna will outperform a shorter antenna most of the time depending on mount location.
     
    BigJim63, Aug 30, 2015
    BigJim63, Aug 30, 2015
    #2
    paulplj2002 Thanks this.
  4. Aug 30, 2015 #3
    Ougigoug

    Ougigoug Heavy Load Member

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    How about installing you antenna either on the side of your rack or in between rack and back of sleeper?

    That way you would be back with 1 antenna, i don't like the co-phased thing.

    Just asking.
     
    Ougigoug, Aug 30, 2015
    Ougigoug, Aug 30, 2015
    #3
  5. Aug 30, 2015 #4
    cuzzin it

    cuzzin it Road Train Member

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    Berea, KY
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    what i'm wondering is how much of it has to peek over the roof. ? would being half a foot higher be enough to get some distance ? this co phase is half of what i was getting with the single mounted on the mirror of previous truck.
     
    cuzzin it, Aug 30, 2015
    cuzzin it, Aug 30, 2015
    #4
  7. Aug 30, 2015 #5
    Ougigoug

    Ougigoug Heavy Load Member

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    Look like you will limited by the rack where you are loading.

    I have a T600 and i run a predator antenna i have made a bracket of my own the look is neat almost factory built
     
    Ougigoug, Aug 30, 2015
    Ougigoug, Aug 30, 2015
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    rabbiporkchop Thanks this.
  8. Aug 30, 2015 #6
    Ougigoug

    Ougigoug Heavy Load Member

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    Just tought about it google outback cb antenna bracket that might be a solution for you.

    Good luck
     
    Ougigoug, Aug 30, 2015
    Ougigoug, Aug 30, 2015
    #6
  9. Aug 31, 2015 #7
    luftkoph

    luftkoph Bobtail Member

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    I seem to remember reading somewhere that 2/3 of the antenna needs to be in the clear.I have Tried using a 102 but could never get a suitable location on the truck to work
     
    luftkoph, Aug 31, 2015
    luftkoph, Aug 31, 2015
    #7
    rabbiporkchop Thanks this.
  10. Sep 1, 2015 #8
    rabbiporkchop

    rabbiporkchop Road Train Member

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    There's nothing wrong with co phased antenna system as long as they're installed correctly. It does make diagnosing problems more complicated but it's a similar concept to using multiple elements for a beam antenna on a base station: it makes you very directional which to me running coast to coast is beneficial because it cancels out signals coming in from the sides and makes it easier to talk and hear further ahead and further to the rear which is desirable for a fast truck in a slow state such as California and Oregon and Washington and Ohio when it was 55 miles an hour for trucks.
     
    rabbiporkchop, Sep 1, 2015
    rabbiporkchop, Sep 1, 2015
    #8
    Ougigoug Thanks this.
  11. Sep 1, 2015 #9
    rabbiporkchop

    rabbiporkchop Road Train Member

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    Check out this antenna that I made for a t600 Kenworth
     
    rabbiporkchop, Sep 1, 2015
    rabbiporkchop, Sep 1, 2015
    #9
  12. Sep 1, 2015 #10
    Ougigoug

    Ougigoug Heavy Load Member

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    My beef with co phased is like you said diagnostic problems and the splitter junction that comes with the truck is kind of cheap.

    1 antenna is to me more user friendly, nice antenna btw!!!
     
    Ougigoug, Sep 1, 2015
    Ougigoug, Sep 1, 2015
    #10
    rabbiporkchop Thanks this.
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