Subject:  W&G EMF meters (fwd)
Date:     Wed, 18 Feb 1998 153639 -0600 (CST)
From:     "Roy L. Beavers" <rbeavers@llion.org>
To:       emfguru@hotmail.com
--------------------------------------------------

Ingrid:

Here is a good response to your question about the EMF meter.....

Roy Beavers (EMFguru)
rbeavers@llion.org..............http://www.feb.se/EMF-L/EMF-L.html
................................It is better to light a single candle ...
than to curse the darkness...............................................

---------- Forwarded message ----------
Date: Wed, 18 Feb 1998 16:31:16 EST
From: RadioTVWiz@aol.com
To: rbeavers@llion.org
Cc: thistle@plainfield.bypass.com
Subject: W&G EMF meters

Roy,
   The Wandel & Goltermann EMF measurement equipment is quite good, but care
must be exercised to determine use of the proper model.  The EFA-2 has
internal clock and memory capacity for a site survey, but it is only useful
for E- and H-field measurements from 5Hz to 30kHz, so a communications site
survey will likely require another model, either W&G or from another
manufacturer, to cover the range beyond 30kHz.  (We use a Narda 8718 with
probes shaped to our new US standards to give a quick reading, in percentage
of allowable exposure, of all the emitters up to 40 GHz in the case of E
field, simultaneously.  Since we are almost always concerned first about total
exposure - as opposed to emission from a particular antenna - this is a very
helpful first step in the site survey.  It also allows for more likely success
in an unannounced inspection!)  The W&G meters do not offer shaped-response
probes, but are much lighter than the Narda and do not require as bothersome
meter-zeroing as the Narda.
   Best wishes,
   Mark H

~~~~~~~~~~~~~~~~~~~~
Butler, Hutchins & Company • Brattleboro (Vermont) Office
Main: (802)258-3000 • FAX: (802)258-2500 • Service: (802)258-4500
Direct Lines: Josh Butler - (330)JGB-3000
Mark Hutchins - (500)HUTCHINS

In a message dated 98-02-18 10:20:05 EST, you write:
<< Dear Roy,
 
 can you please help me with a query, about a meter with the following
 specifications:
 
 Wandel & Goetheke, EFA-2, EM field analyzer.
 
 The chap using it claimed it concurrently measured several
 frequency-ranges, and in the display would show any peaks of any
 frequency, etc. How good is this??
 
 with warm greetings,
 Ingrid High
  >>



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Reprinted with permission of Roy Beavers, http://www.feb.se/EMF-L/EMF-L.html