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Size Matters - An A99 question......

Discussion in 'General CB Services Discussion' started by guitar_199, Sep 17, 2019.

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  1. guitar_199

    guitar_199 Well-Known Member

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    I just downloaded the assembly manual for an A99 and what I am looking for does not seem to be written in there.

    Does anyone know off the top of your head ... what is the max diameter pole that an A99 will mount to? I guess the basic thing is.... how wide are the U bolts that come with it...and I don't know.

    Anybody?

    Thanks in advance,
    Bob


     
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  2. Unit 75

    Unit 75 "TRAINMAN"

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    It will mount up to a 1.5" max. diameter mast or pole.
     
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  3. guitar_199

    guitar_199 Well-Known Member

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    Excellent. Thank you much!

    Bob
     
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  4. AtLarge

    AtLarge Member

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    Just a thought... That 1.5'' might be using the included U bolts. When I put up my HF flagpole I had to cheat a little since it's slightly larger in metric. I just got U bolts from my local Ace and tweaked them slightly and the bolts are longer. The ones included with the antenna are pretty short.
     
  5. guitar_199

    guitar_199 Well-Known Member

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    That is a great thing to keep in mind. I was thinking of the original U-bolts....but I suppose a hardware store could add some possibilities..... thanks!!!
     
  6. Road Squawker

    Road Squawker Sr. Member

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    why do you need anything larger than 1 1/2" mast to hold up an a 99?
     
  7. guitar_199

    guitar_199 Well-Known Member

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    Me? I don't. Originally I could find no indication of what size mast this thing could use.... either recommended or MAX. I was thinking of a 1 3/8" chain link fence top rail and wanted to be sure that it would fit that.
     
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  8. Big Kahuna

    Big Kahuna Sr. Member

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    Top rail from Home Depot works great.
     
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  9. Mudfoot

    Mudfoot Elmer

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    I had to do that.
     
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  10. kaos513

    kaos513 Sr. Member

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    I used electrical conduit of course with ground strap
     
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  11. guitar_199

    guitar_199 Well-Known Member

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    So just for fun...... do you have any kind of lightning arrester/protector anything like that on your coax? Does anybody do that anymore?


     
  12. Unit 75

    Unit 75 "TRAINMAN"

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    I just unplug my coax when I'm done talking, Only takes 5 seconds..... no worries.
     
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  13. 357magnum

    357magnum Sr. Member

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    I heard/read someplace ( or maybe someone told me ) that the chain link fence rail isn't that great ? I was going to use it for my beam install & was advised not to . I can't remember who/where & that doesn't mean they were right !:D I have plenty of that rail .
     
  14. CB590

    CB590 W9WDX Member

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    What I found testing today was that with my A99 and power of like 100w or more the top rail may conduct the RF off the feedline coax and skew your SWR abit. I made some 6" standoffs to keep the coax away from the mast/top rail.. SWR was better..

    IMG_20190920_132056203.jpg

    If your not running power you can just ignore and ziptie the coax to mast like most..

    Also use caution if you decide to choke the A99 as it does need some coax for the grounding.. unless you get the GPK too.

    Anyways that's my take from today's up/down to mine..
     
  15. S&W357

    S&W357 WDX-556 / 2NC556 $upporting Member

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    Hmmmm...my coax from A99 runs straight down the mast pipe (as does a ground wire) and is attached with rubber tape at a few spots. I don't seem to have any SWR issues with/without an amplifier on. I do have the coax right below the antenna rolled into a small 5" choke coil. Why, I dunno. o_O

    [​IMG]
     

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