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Changing antenna shaft length

Discussion in 'CB Radio Forum' started by sbaumann14, Feb 28, 2020.

  1. Feb 28, 2020 #1
    sbaumann14

    sbaumann14 Road Train Member

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    Will changing an antenna shaft length affect the SWr? Currently have a browning antenna with an 18 inch shaft length that I want to go to a 24 inch shaft to get it up a little higher
     
    sbaumann14, Feb 28, 2020
    sbaumann14, Feb 28, 2020
    #1
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  3. Feb 28, 2020 #2
    Night Stalker10

    Night Stalker10 Road Train Member

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    Yes, because you're not only changing the physical length of the antenna, but also the electrical length of the antenna.
     
    Night Stalker10, Feb 28, 2020
    Night Stalker10, Feb 28, 2020
    #2
    jessejamesdallas Thanks this.
  4. Feb 28, 2020 #3
    jessejamesdallas

    jessejamesdallas Road Train Member

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    Yep...you'll need to re-tune.
     
    jessejamesdallas, Feb 28, 2020
    jessejamesdallas, Feb 28, 2020
    #3
    Diesel Dave Thanks this.
  5. Feb 28, 2020 #4
    sbaumann14

    sbaumann14 Road Train Member

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    Rhinelander, WI
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    Ok....have weekend off. Will do
     
    sbaumann14, Feb 28, 2020
    sbaumann14, Feb 28, 2020
    #4
  7. Mar 15, 2020 #5
    craig_sez

    craig_sez Road Train Member

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    novascotia,Canada
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    Its likely gonna be close to same over all height but coil will be higher...
    Be sure to use a beefy mount and stud...Check it closely every week and after heavy winds...Might be there one min and gone the next...
    Another good idea is to use a smidge of antisieze where any two points connect..
     
    craig_sez, Mar 15, 2020
    craig_sez, Mar 15, 2020
    #5
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