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Testing cables connectors issues need your help - RF Cafe Forums

Because of the high maintenance needed to monitor and filter spammers from the RF Cafe Forums, I decided that it would be best to just archive the pages to make all the good information posted in the past available for review. It is unfortunate that the scumbags of the world ruin an otherwise useful venue for people wanting to exchanged useful ideas and views. It seems that the more formal social media like Facebook pretty much dominate this kind of venue anymore anyway, so if you would like to post something on RF Cafe's Facebook page, please do.

Below are all of the forum threads, including all the responses to the original posts.

 Post subject: Testing cables connectors issues need your help
Posted: Mon Sep 07, 2009 4:23 am 

Joined: Tue Nov 11, 2008 5:03 am
Posts: 16
Location: Shanghai, China
One of my cable set connector to 8753ES is magnetical, which means the SmCo can attach to it, since the connectors are made of copper, should be non-magnetical, is it means my connector is of problem? It seems the copper material fo rthi s connector is not very pure, how it effects my testing result. I use it to test isolator built with stainless steel housings.

Many thanks for your response.

glad to learn from you

 Post subject: Re: Testing cables connectors issues need your help
Posted: Fri Sep 18, 2009 4:08 pm 

Joined: Fri May 26, 2006 8:20 am
Posts: 4
The base metal for your connector is very likely steel or some alloy, not pure copper. So it might have some magnetic properties. If it hase a nickel plating, then that will also contribute to the magnetic tendency. It should not affect your testing, even on a circulator/isolator as long as it is in a connectorized housing.

The main problem with magnetized connectors is a tendency to accumulate metallic particles in the interface that can cause poor VSWR and in the case of high power measurements, PIM (passive intermods) issues.

If you are worried about magnetic connectors, find some non-magnetic in-series connector savers to use between your test cables and the DUT.

--- Chebyshev

 Post subject: Re: Testing cables connectors issues need your help
Posted: Tue Sep 22, 2009 10:21 am 

Joined: Tue Nov 11, 2008 5:03 am
Posts: 16
Location: Shanghai, China
Thanks. Appreciate!

glad to learn from you

Posted  11/12/2012

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