Hell Duncan:
- Would they use S1 when leakage testing our type of equipment?
Your equipment is cord-connected equipment, not
direct-plug-in equipment. Therefore, S1 is not
used when testing leakage current from your
equipment.
- What is the definition of 'direct plug in' (it is
Kevin:
You are actually testing a signal-to-noise ratio. The desired signal is
reduced until you get to a certain level of degradation (which is unique to
the receiver you have chosen). You then use that level to determine the
amount of undesired (interfering) signal. You apply that undesired
Greetings everyone,
I was wondering if anyone has already worked this out. The test
under question measures the sound power level generated by fan trays or
other noise producing structures in Central Office type telecom
equipment.
ETS 300 753 Acoustic noise test calls for the test to be
Not so. Most household appliances contain motors (excluding
entertainment appliances). Motors (ac induction types; the
most commonly used) are generally less efficient at lower
voltages (largely by virtue of their increased I^2*R loss)
and draw more current to perform the same amount of work or
Hello,
I'm puzzled by a proposed RF link performance standard I have just reviewed
that is calling for some immunity to inband interference signals. The
proposed procedure to do this to is to place a system receiver in an
anechoic room and then transmit to it. The transmitter signal strength is
One of the formulas for power is Voltage Squared/Resistance. So, in the
case where the load is purely resistive (and doesn't change), a dramatic
reduction in power can be obtained by reducing the voltage.
Max Kelson
Evans Sutherland
-Original Message-
From: Ravinder Ajmani
Another good buy is the HP-8562A. The HP-8562A design is over 15 years old,
but it's still a good choice, with a lot of them on the market now. It goes
up to 18 GHz, and then accepts external waveguide harmonic mixers (18-26
GHz, 26-40 GHz, 33-50 GHz, others that I forget now, but up to something
The 72V upper limit is still needed also for the future.
In Germany as well as in eastern European countries including Russia, the
central battery in
telecom centres is a 60V (nominal) battery. The uppper limit is 72 V (2,4V
x 30).
This situation will not change in the near future
regards
Forwarded for Jun Nakamura. Please include Mr. Nakamura
(nakamur...@naka.melco.co.jp) on any replies
Dave Heald
Original Message
Subject: Re: Product Safety - Japan
List-Post: emc-pstc@listserv.ieee.org
Date: Sat, 05 May 2001 23:10:05 +0900
From: nakamur...@naka.melco.co.jp
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