Magnetic Loop in action

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Uploaded by on Nov 14, 2007

During last years JOTA we decided to use the MFJ Magnetic Loop (10 - 30 Mc/s) with some good results

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Science & Technology

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Uploader Comments (PA3CSX)

  • Hello,

    When you QSY a few Khz, how long does it take to retune?

  • @demysaid

    or a few kc/s you don't have to retune.

    more than abt 10 kc/s it takes a couple of seconds to put on a carrier and push the up or down fine tune buttons.

    i would say 5 secs.

    cheerio

  • Hello I am vy interested abt this antenna but does it really eliminates QRN(NOT QRM) from electrical motors/power lines etc?

    73 de SV1EEX - Nik

  • Hi Nik,

    the antenna does great on QRN, i used it in a appartment and found it very quiet on manmade noise from lightdimmers etc.

    73, Bart

  • Thanks for the Demo -

    By looking at the MFJ meter it looks like that you are running more than 100 watts into the loop.

    Is this true, does the loop handle more than 100?

    Thanks

  • Hi,

    we were running 99 watts as you can see on the display of the radio.

    cu Bart

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All Comments (14)

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  • freaking dutch operator.

  • ...and, where is antenna ?...hi. Of course, magnetic loop is altogether good antenna.

  • I did see these being made at the MFJ plant on a tour this week. Richard from mfj was very helpfull and the antenna is very well made! It is like the strongest antenna I have ever seen... Jimmy:)

  • I was ready to give up operating since power line noise was so severe. A friend brought over a Flex Radio 5000A and absolutely no noise when the Noise Reducer was turned on. I now own a Flex Radio 5000A.

  • he forgot the "low range meter", as you can see the button is not pressed.... ;-)

  • Very Good. How big was that loop?

    Was that the MFJ loop or did you improvise? Again good show.

    vy 73 WJ2L/4

  • Serieus bezig hier. Ga zo door!

  • Vy tks dr Bart I will consider strongly to buy one cause I have extreme qrn (9 s units +) in all bands + 6m due to nearby power lines so my only solution apart from making lawsuits against the company is to go and buy this nice antenna!

    73, Nik

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