RE: Recommendations for a portable spectrum analyzer?

2001-03-14 Thread O'Shaughnessy, Paul

Many thanks to everyone who responded.  I've got a few models to go with
now, and I'll start looking.
 
A substantial help.  Thanks again.
 
Paul O'Shaughnessy
Affymetrix, Inc.

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RE: Recommendations for a portable spectrum analyzer?

2001-03-14 Thread John Juhasz
Oops!  Typo . . . $16 would've been a GREAT bargain!! 
 
Thanks to Gary McInturff for pointing it out!
 
It should've been $16K . . . . 
 
John Juhasz
Fiber Options
 

-Original Message-
From: John Juhasz [mailto:jjuh...@fiberoptions.com]
Sent: Wednesday, March 14, 2001 8:17 AM
To: 'O'Shaughnessy, Paul'; 'emc-p...@majordomo.ieee.org'
Subject: RE: Recommendations for a portable spectrum analyzer?



Paul, 

I bought a portable HP (just before it became 'Agilent' - ugh) 7401 
EMC analyzer. It only goes up to 1.5Ghz, but I think there is a 
version that goes higher. It has a built-in hard disk, and a 3.5 
floppy drive (it for saving data - traces, analyzer state, and screen, 
as well as loading antenna factors for the major, popular antennas). 
It is a color screen with 3 trace capability, screen split, built-in 
pre-amp, etc . . . I paid $16. It works very well when you need to 
do troublshooting. 

John Juhasz 
Fiber Options 
Bohemia, NY 

-Original Message- 
From: O'Shaughnessy, Paul [ mailto:paul_oshaughne...@affymetrix.com
mailto:paul_oshaughne...@affymetrix.com ] 
Sent: Tuesday, March 13, 2001 6:45 PM 
To: 'emc-p...@majordomo.ieee.org' 
Subject: Recommendations for a portable spectrum analyzer? 



Dear List, 

I am looking to purchase (new or used) a good general purpose spectrum 
analyzer, mostly for use with an EMCO sniffer loop set for locating hot 
boards, shields, and cables, panel joints which are leaking, etc.  The 
frequency range of interest is up to a few GHz (this is to assist with EN 
55011 emissions testing).  I also want to get something that other engineers

and techs don't shy away from.  So, I don't need or want anything incredibly

fancy, and I'm not trying to set up an open field site.  Just reliable and 
straightforward to use. 

Any brand name and model suggestions? 

My thanks in advance. 

Paul O'Shaughnessy 
Test Engineering Manager 
Affymetrix, Inc. 


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4203d61676d0ae468aa5cea90a891c13235...@cof110avexu4.global.avaya.com,
Wagner, John P (John) johnwag...@avaya.com wrote:
I think this refers to Amendment 1of IEC 61000-3-3 published January=
 2001.=A0=20
Apparently it has not yet been transposed into an EN.
It was dual-voted, so it will be.
=A0 The amendment (at=20
least as it effects me) deals primarily with requirements and limits=
 for=20
inrush current.

Well, inrush current is dealt with in the unamended standard, but
neither that or the amendment deal with it directly. Limits are
expressed as 'dmax', the maximum relative voltage change, measured as an
r.m.s. value over the worst half-cycle, starting from the zero-crossing.

The amendment goes into much more detail about this, and gives relaxed
limits for some types of equipment. The main problem with inrush current
is where there is a lot of equipment in one location, and there is a
power outage. When the power comes back on, cumulative inrush current
may reach many tens of times normal load current, causing protective

RE: Recommendations for a portable spectrum analyzer?

2001-03-14 Thread John Juhasz
Paul,

I bought a portable HP (just before it became 'Agilent' - ugh) 7401
EMC analyzer. It only goes up to 1.5Ghz, but I think there is a
version that goes higher. It has a built-in hard disk, and a 3.5
floppy drive (it for saving data - traces, analyzer state, and screen, 
as well as loading antenna factors for the major, popular antennas). 
It is a color screen with 3 trace capability, screen split, built-in
pre-amp, etc . . . I paid $16. It works very well when you need to 
do troublshooting. 

John Juhasz
Fiber Options
Bohemia, NY

-Original Message-
From: O'Shaughnessy, Paul [mailto:paul_oshaughne...@affymetrix.com]
Sent: Tuesday, March 13, 2001 6:45 PM
To: 'emc-p...@majordomo.ieee.org'
Subject: Recommendations for a portable spectrum analyzer?



Dear List,

I am looking to purchase (new or used) a good general purpose spectrum
analyzer, mostly for use with an EMCO sniffer loop set for locating hot
boards, shields, and cables, panel joints which are leaking, etc.  The
frequency range of interest is up to a few GHz (this is to assist with EN
55011 emissions testing).  I also want to get something that other engineers
and techs don't shy away from.  So, I don't need or want anything incredibly
fancy, and I'm not trying to set up an open field site.  Just reliable and
straightforward to use.

Any brand name and model suggestions?

My thanks in advance.

Paul O'Shaughnessy
Test Engineering Manager
Affymetrix, Inc.


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RE: Recommendations for a portable spectrum analyzer?

2001-03-14 Thread Leszek Langiewicz

Paul,

The Agilent Technologies has a decent product, E74000 series portable
EMC Spectrum Analyzer.
For more info go to:
http://www.tm.agilent.com/classes/MasterServlet?view=productgroup_2pgr-
ItemID=100212language=englocale=US 

Leszek M. Langiewicz
PHOGENIX IMAGING, LLC
EMC / Safety, Power Distribution

 -Original Message-
From:   O'Shaughnessy, Paul [mailto:paul_oshaughne...@affymetrix.com] 
Sent:   Tuesday, March 13, 2001 3:45 PM
To: 'emc-p...@majordomo.ieee.org'
Subject:Recommendations for a portable spectrum analyzer?


Dear List,

I am looking to purchase (new or used) a good general purpose spectrum
analyzer, mostly for use with an EMCO sniffer loop set for locating
hot
boards, shields, and cables, panel joints which are leaking, etc.  The
frequency range of interest is up to a few GHz (this is to assist with
EN
55011 emissions testing).  I also want to get something that other
engineers
and techs don't shy away from.  So, I don't need or want anything
incredibly
fancy, and I'm not trying to set up an open field site.  Just reliable
and
straightforward to use.

Any brand name and model suggestions?

My thanks in advance.

Paul O'Shaughnessy
Test Engineering Manager
Affymetrix, Inc.


---
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 Jim Bacher: j.bac...@ieee.org

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