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Intro Hi I am new

Discussion in 'General CB Services Discussion' started by MadVeteran, Sep 8, 2021.

  1. MadVeteran

    MadVeteran Active Member

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    After bout 43 years since my last CB Radio, I just set one up. 43 years ago I had a 5/8ths wave antenna on my second floor chimney. I am building a 1/2 wave diploe but am using a Workman b100 indoors (not enough range for me).
    I did set up some computer speakers which I feel really improves the sound. However, every time I key up I get loud noise. This happens even when speakers are unplugged so, I think it is rf interfering with speaker wire.



    Is there a way to insulate the wires or, do I need a CB speaker ?

    Thanks in advance

    MadVeteran
     
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  2. cralt

    cralt Well-Known Member

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    (y) Hello and welcome!

    If they are amplified computer speakers they are likely picking up the RF from your indoor antenna and amplifying it. CBs are normally designed to power their own speaker so if you wired any old speaker to the CB “external speaker” jack it may work better for you.

    I think the dipole outside would work much better for you then that little workman inside. The workman really needs to be bolted to a big pole or something with a lot of metal to not send tons of RF down the shield of the coax.

    Does your CB have a built in SWR meter or do you own an external one? That really is a must when playing with antennas.

    Have fun!
     
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  3. AmericanEagle575

    AmericanEagle575 Sr. Member

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    Welcome back to the hobby
     
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  4. MadVeteran

    MadVeteran Active Member

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    Thanks for the replies.
    Yes, it is an amplified set of one bass + 2 midrange computer speakers.
    Would ferrite filters change my situation ?

    I have SWR meter. reading 1.2 from channel 1-40
     
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  5. w9cll

    w9cll W9WDX Amateur Radio Club Member

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    Welcome to the site!
     
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  6. MadVeteran

    MadVeteran Active Member

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    Thanks for the welcomes.
     
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  7. cralt

    cralt Well-Known Member

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  8. nomadradio

    nomadradio Analog Retentive

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    First, thank you for your service!

    Second, get a passive speaker. Amplified speakers just don't play well with RF. Doesn't mean it can't be done, but a passive speaker will be just as loud and better yet, only on receive.

    73
     
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  9. MadVeteran

    MadVeteran Active Member

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    Thanks for all the help.
    I am really encouraged to find an active radio site like this.
    And, nomadradio, thank you for your support and for your thanks.
     
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  10. Crawdad

    Crawdad Down in the mud invasive species

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    Welcome Mr. Veteran and thank you for defending our nation.

    A wire dipole will work quite well for you. An inverted "V" dipole will allow you to play both local and DX (if DX ever returns that is).

    Lots of good folks with good knowledge here, so yell for more help if you need it.
     
    #10 Crawdad, Sep 9, 2021
    Last edited: Sep 9, 2021
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  11. S&W357

    S&W357 $upporting Member KO4RJD....WDX-556

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    Welcome to the forum! Good idea to move that dipole outside if you can.

    Inverted V ain't bad for DX...or install it fully horizontal by raising the ends.

    upload_2021-9-9_14-5-4.jpeg


    A-99 antenna is good to go no hassle to install vertical antenna. I like mine...works great.
     
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  12. Crawdad

    Crawdad Down in the mud invasive species

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    Hey Ralph,
    Hope you are well......

    73
     
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  13. secret squirrel

    secret squirrel Lustrous Potentate

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    The Workman B100 antenna uses the coax as the ground plan for the antenna so your coax will radiate RF. Once you get an antenna up outside, you should see improvements. Welcome back to CB radio.
     
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  14. Slowmover

    Slowmover Supporting Member

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  15. MadVeteran

    MadVeteran Active Member

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    All great points .. Thanks all.
    I just ordered another CB external speaker.
    I intend for the dipole to go outside but, it will most likely be used from inside at first.

    CBs are proving to be fun even if its just setting them up.
     
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