The only problem I see with not calibrating the LISN is you wouldn't
know if / or when it goes bad until you cross check it with a calibrated
LISN.
I would suggest you run your precompliance lab just like the real lab.
This way you'll get the same results as the accredited lab you test
with. No surprises this way.
Michael Sundstrom
NOKIA
TCC Dallas / EMC
ofc: (972) 374-1462
cell: (817) 917-5021
amateur call: KB5UKT
-----Original Message-----
From: ext Ken Javor [mailto:ken.ja...@emccompliance.com]
Sent: Wednesday, November 28, 2001 9:06 PM
To: marti...@appliedbiosystems.com; emc-p...@majordomo.ieee.org
Subject: Re: LISN Calibration
I would say that if it came calibrated from the manufacturer and has not
suffered visible damage it should be okay. It is easy to check a few
spot
frequencies or use a spectrum analyzer with tracking generator or
separate
sweeping sig gen to check performance. Either way it is not a big deal.
on 11/28/01 4:15 PM, marti...@appliedbiosystems.com at
marti...@appliedbiosystems.com wrote:
>
> We are in the process of setting up a pre-compliance EMC lab. One of
the
> tests that we will be performing is pre-compliance conducted emissions
per
> EN 61326.
>
> I realize that since we are only performing pre-compliance
measurements
> that calibration of the LISN is not required. However, do you
recommend
> calibrating the LISN for pre-compliance measurements? If so, why?
>
> Your responses are appreciated
>
> Regards
>
> Joe Martin
> Applied Biosystems
>
>
>
>
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