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Thread: Mobile Radio Antenna Base

  1. #1
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    Mobile Radio Antenna Base

    So this is a base for a large antenna that gets used for FEMA deployments to disasters where a base station needs to be established during a possible grid failure/major disaster etc to cover a large area.

    A car or truck tire gets parked on it for ballast.

    They asked me to replicate it, to which I asked if I can change the design so it doesnít need a bunch of silly pins.

    So this is what I came up with, itís all 1/4Ē. Waiting for final approval on the design to start the build. Should be a couple hour project.

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  3. #2
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    Re: Mobile Radio Antenna Base

    Zach, how big is the antenna (or what frequency band is it) and how long of a mast will plug into the yellow section? I recently bough an antenna for my ham radio that tilts over, but the design seems a whole lot simpler. this is a 43 foot mast, so it might be overkill. The tilt plate and mast are aluminum, the hardware is stainless. See below:

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    Miller Multimatic 255

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  5. #3
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    Re: Mobile Radio Antenna Base

    Quote Originally Posted by BrooklynBravest View Post
    They asked me to replicate it, to which I asked if I can change the design so it doesnít need a bunch of silly pins.

    So this is what I came up with, itís all 1/4Ē. Waiting for final approval on the design to start the build. Should be a couple hour project.
    Nice, simple design. That mass of pins was a mess. I would, however, attach a small chain from the mast holder to the pull pin with the ring in it....that will be the first thing that gets lost, I guaraaaannnnteee!

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  7. #4
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    Re: Mobile Radio Antenna Base

    Quote Originally Posted by shortfuse View Post
    Nice, simple design. That mass of pins was a mess. I would, however, attach a small chain from the mast holder to the pull pin with the ring in it....that will be the first thing that gets lost, I guaraaaannnnteee!
    It has one, it’s too much work to draw in CAD lol.
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  9. #5
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    Re: Mobile Radio Antenna Base


  10. #6
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    Re: Mobile Radio Antenna Base

    Did Hadden help you design that? Ask him about the wonderful Mystery Machine we had to work out of this summer in Washington.

    Onelick

  11. #7
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    Re: Mobile Radio Antenna Base

    Looks great from here! I bet the local COMT was happy to see the pins gone.

    John S.

  12. #8
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    Re: Mobile Radio Antenna Base

    I'd make it fold the other direction so the OAL when folded is shorter.
    MillerMatic 252, HTP 221 w/cooler, Hypertherm PM45, Lincoln IdealArc 250 AC/DC, victor Oxy/Acet

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  13. #9
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    Re: Mobile Radio Antenna Base

    Quote Originally Posted by frieed View Post
    I'd make it fold the other direction so the OAL when folded is shorter.
    I wonder if the idea is to first place the ballast (Fat Albert, a 15 gallon drum of water, ???) on the plate, then install the mast in the yellow holder and have two people hinge the assembled mast upward, using the hinge for control? With governmental or quasi-governmental agencies, don't you always need at least two people in case one forgets which way is up?

  14. #10
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    Re: Mobile Radio Antenna Base

    Louie, I gotta remember that, real slick.

  15. #11
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    Re: Mobile Radio Antenna Base

    Nice job to have.

    Dave

    Quote Originally Posted by BrooklynBravest View Post
    So this is a base for a large antenna that gets used for FEMA deployments to disasters where a base station needs to be established during a possible grid failure/major disaster etc to cover a large area.

    A car or truck tire gets parked on it for ballast.

    They asked me to replicate it, to which I asked if I can change the design so it doesnít need a bunch of silly pins.

    So this is what I came up with, itís all 1/4Ē. Waiting for final approval on the design to start the build. Should be a couple hour project.

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  16. #12
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    Re: Mobile Radio Antenna Base

    I did end up finishing this.

    Unfortunately I forgot to take pictures of it actually finished.

    This is the best I got

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    www.FirehouseFabricators.com

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  18. #13
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    Re: Mobile Radio Antenna Base

    Quote Originally Posted by BrooklynBravest View Post
    I did end up finishing this.

    Unfortunately I forgot to take pictures of it actually finished.

    This is the best I got

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    Looks awesome!

    I understand the base plate is thick and shouldn't bend easily.. but for the peace of mind I would add a few ribs to it (lengthwise) along the edges, Maybe some angle iron facing down.

    I hope you painted it bright yellow or something!

    Mikel

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