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Author Topic: best type of rf-isolator ????  (Read 3134 times)
KC8Y
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Posts: 496




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« on: July 22, 2016, 04:31:06 PM »

Have obtained a G5RV Jr. antenna, that comes premade. (51-ft wire, insulators, and 70-ft of RG-8x coax).  Use a Palstar AKTKP antenna tuner and never operate above 100-watts.
 
I, already know about he MFJ-915 rf-isolator.

Are there any other models???

Ken KC8Y


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KE6EE
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Posts: 1938




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« Reply #1 on: July 22, 2016, 08:38:53 PM »

There are several makers of much-higher-quality, doubtless more effective, common-mode chokes. They cost more. You want one that provides a high level of choking impedance and specifies that for the choke offered for your situation.

Balun Designs are such and probably the most reasonably-priced. You can also get them from DX Engineering who sell several makes including their own, as well as Array Solutions. I have successfully used baluns from all three suppliers.

You can email them with your specs/expectations and hear back quickly with a recommendation.

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KC8Y
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« Reply #2 on: July 23, 2016, 05:42:16 AM »

Thank you for all the information.

I plan to visit DX Engrg (located only abut 35-mi due west of me).   Will, also
check out Balun Design and Array Solution on the web.

Ken KC8Y
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KU3X
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Posts: 471




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« Reply #3 on: July 24, 2016, 04:07:36 PM »

GU 6-160-5KW-S made by Hy Power Antenna Company.
Barry
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