Article View: sci.electronics
Article #4575Re: RF Interference
From: Bob Myers
Date: Tue, 10 Apr 1990 18:07
Date: Tue, 10 Apr 1990 18:07
20 lines
1536 bytes
1536 bytes
A measurement of RF interference, the way it's done to verify compliance with
the various government regulations, requires very carefully-controlled
conditions, such as a test site of certain dimensions and including a ground
screen, the proper antennas, and a calibrated receiver or spectrum analyzer.
With all of this gear, meaningful measurements (usually expressed in dB over
a reference of - I think - 1 uV/meter) of the field strength can be made.
(I have the dubious honor of doing these tests right now, on a new product,
so this subject is currently near and dear. Sigh.)
You cannot duplicate these measurements in a meaningful way with simple equip-
ment. I agree that the Amiga may be causing a problem, but it'd be difficult
to show that the unit was not in compliance with the limits to which it was
originally qualified.
Bob Myers KC0EW HP Graphics Tech. Div.| Opinions expressed here are not
Ft. Collins, Colorado | those of my employer or any other
myers%hpfcla@hplabs.hp.com | sentient life-form on this planet.
Technical Details
Message-ID:
<17660061@hpfcdj.HP.COM>Path:
arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!swrinde!zaphod.mps.ohio-state.edu!usc!apple!bionet!ames!pasteur!ucbvax!hplabs!hpfcso!hpfcdj!myersReferences:
<1990Apr9.171520.2519@athena.mit.edu>Show Full Headers
Complete Article Headers
Path: arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!swrinde!zaphod.mps.ohio-state.edu!usc!apple!bionet!ames!pasteur!ucbvax!hplabs!hpfcso!hpfcdj!myers From: myers@hpfcdj.HP.COM (Bob Myers) Newsgroups: sci.electronics Subject: Re: RF Interference Message-ID: <17660061@hpfcdj.HP.COM> Date: 10 Apr 90 18:07:31 GMT References: <1990Apr9.171520.2519@athena.mit.edu> Organization: Hewlett Packard -- Fort Collins, CO Lines: 20