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Slim Jim Newbie

antenna Slim Jim HT

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#1 Sojourner In Alien World

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Posted 16 February 2021 - 05:35 PM

I am a newbie working on setting up my ribbon slim jim inside my apartment as I cannot mount an outside antenna.  Everyone talks about keeping it away from metal objects but how far away?  I need to use the antenna in my kitchen which of course has a refrigerator and range that are curiously made of metal.  I also would like to know which part of the antenna radiates.  The top or the bottom?  



#2 Lscott

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Posted 16 February 2021 - 07:58 PM

I would recommend keeping it about 12 inches away from large metal objects. The top part of the antenna, about 75 percent of it, is where the RF mainly radiates from. If you don’t need to use the antenna often you can try hanging it from an eye-hook screwed into the ceiling.
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#3 Corey

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Posted 16 February 2021 - 08:32 PM

Don't rule out a 1/4 wave on a magnet mount in the center of a 18" pizza pan.

 

Believe it or not this will talk almost as good as a mobile if you can get it in front of a window.


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Just My $.02

 

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#4 Sojourner In Alien World

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Posted 16 February 2021 - 11:46 PM

Thank you for your replies.  I will be trying the Slim Jim hanging from the ceiling two feet from the refrigerator and two feet from the range.  This is exactly where I stood to hit a repeater that is seven miles away with just my HT without an external antenna.  So I am excited to see how it works.  I am going to try to hit two other repeaters.  One is 15 miles away and the other is a little further than that.  



#5 Sojourner In Alien World

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Posted 17 February 2021 - 06:45 PM

OK.  So the slim jim doesn't work.  I have seen UHF only ribbon Slim Jims and was wondering if I could cut this dual band slim jim down to a UHF only slim jim?



#6 axorlov

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Posted 18 February 2021 - 01:56 AM

Get outside. Hang up slim jim off the tree or fence or anything. Repeat the test.


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- Alex


#7 Sojourner In Alien World

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Posted 18 February 2021 - 08:31 PM

I am communicating with people on the repeater with my stock antenna for the Btech MGRS V1.  So I am happy.  The slim jim will go in my bug out bag and when SHTF we will see if it works.  Until then I am done with it.  However I do have a Nagoya coming so we will see if that improves things.  Thank you for all your suggestions. 







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