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Thread: random aerial question

  1. 21st March 2014, 07:20 AM #1
    Geoff's Avatar
    Geoff
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    random aerial question

    hi guys,


    just out of my need to know stuff, what are those big (diameter) aerials you see mounted to the rear of 4wd's and caravans?


    Cheers
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  2. 21st March 2014, 09:10 AM #2
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    JDNSW
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    I think what you are referring to are HF aerials.
    John
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  3. 21st March 2014, 09:13 AM #3
    slug_burner
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    As a bove HF antenna, tuning network/mechanism contributes the the size. Usually the bottom part is thicker.
    Quote Originally Posted by benji View Post
    ........

    Maybe we're expecting too much out of what really is a smallish motor allready pushing 2 tonnes. Just because it's a v8 doesn't mean it's powerfull.

    One answer REV IT BABY REV IT!!!
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  4. 21st March 2014, 01:34 PM #4
    Geoff's Avatar
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    ahhhh, thanks
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  5. 26th March 2014, 02:13 AM #5
    jim bolton Guest

    HF

    Hi Geoff, have a look at "screwdriver aerial" I think this is what you've seen. The large diameter bit at the bottom contains a coil which is tuned by contacts moving up and down it driven by an electric screwdriver motor in the original version. Cheers, Jim.
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