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Nmo antenna on a toolbox

Discussion in 'Scanning & Shortwave Listening' started by bigcountry78, Aug 29, 2018.

  1. bigcountry78

    bigcountry78 Member

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    I was going to mount a cb antenna on my toolbox, but I’ve decided to just use a scanner instead. My question is, how critical is the ground plane for a scanner antenna? I have a steel gull wing toolbox, so I have a nice square steel plate in the middle. My plan is to mount a Larsen Tri band antenna on an nmo mount in the center of the box. Will this work satisfactory? I know the roof is the ideal place, and I may end up doing a roof mount. But the toolbox mount would give me better clearance for tree limbs and the like.


     
    #1 bigcountry78, Aug 29, 2018
    Last edited: Aug 29, 2018

  2. w9cll

    w9cll W9WDX Amateur Radio Club Member

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    It will work
     
  3. BJ radionut

    BJ radionut Supporting Member and 6m addict

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    BC78: It should work fine...If the toolbox is grounded to bed. Some of those boxes use rubber gaskets between bed and box to keep from beating up the bed-rail or the bed has a liner sprayed or installed...which makes a great insulator. Even if it does not, the box clamps just hold toolbox to the bed-rail lip and of course those are painted...so no good ground. I ran a ground strap from toolbox to bed and the frame of the toolbox to solve this. Then all worked well.
    All the Best
    Gary
     
  4. bigcountry78

    bigcountry78 Member

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    Is all that bonding necessary for a receive only antenna? I know it is for one that transmits, but is swr all that critical just to receive signals?
     
  5. w9cll

    w9cll W9WDX Amateur Radio Club Member

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    No not really, it can help but not needed
     
  6. Rwb

    Rwb Well-Known Member

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    Helps reduce static n white noise
     
    bigcountry78 likes this.

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