I had occasion once to look at the input relay on an NM-37. The set acted
as if relay contacts were corroded -- but the sealed reed relay was fine;
the problem was a cold-solder joint.
Relays sealed in inert gas or vacuum should never fail due to corrosion,
and there's no need to limit their
In a message dated 4/21/2003 Marko writes:
I don't have much technical to add but was wondering why you are looking
into this standard. Have you customers that are asking for this requirement
to be met or is it simply a planning exercise? If it's customer-driven,
could you share what type of
Joe,
I don't have much technical to add but was wondering why you are looking
into this standard. Have you customers that are asking for this requirement
to be met or is it simply a planning exercise? If it's customer-driven,
could you share what type of customer (ILEC, PTT, North America,
Don,
I have encountered this problem with low-level signals. It seems to vary
greatly from manufacturer to manufacturer (the company we had the best results
with went out of business). When the contact(s) became dirty I would run a DC
current and clean it. The problem would quickly return and
There was a thread on this some time ago and I think the consensus was that
the -20 dBm limit must be a typo, or a misunderstanding by the sales dept
that writes the catalog copy. if the switch is purely mechanical, the
signal level shouldn't matter, except for here are some wool-gathering
Hello Friends,
I have an application in which I would like to switch system signals on coax
cables. One system is 80 to 1000 MHz, the other is 1-2 GHz. I have found
coax switches by Narda, DB Products and Dow Key. Dow Key indicates that the
signals should be above -20 dBm to ensure that contact
-Original Message-
From: Low, Aaron S [mailto:aaron.s@lmco.com]
Sent: Thursday, April 17, 2003 1:24 PM
To: emc-p...@majordomo.ieee.org
Subject: Bulk current injection method for CS101
I am wondering if any of you have had experience using a
current probe to
inject current into a
Richard,
Thank you for your ongoing comments on this situation.
This issue is mixed between the technical and legal communities. In
the US, there have been a number of cases lost where sufficient information
was not given to the user on the equipment and the user was seriously
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