I'm not sure if DO-199 or 233 has EMC requirements but I am very
interested if you come with any.  IEC 62A/MT 23 is in the process of
amending 60601-1-2 for medical equipment  used in the aircraft
environment.  We have based our requirements on the environment
specified in DO-160.  In general, the DO-160 requirement for RE are
higher than CISPR except in the communications and navigation
frequency bands.  For example, RE dips to 25 uV/m in the 100 - 150
MHz band for category II equipment.  Please let me know if you find
anything in DO-233 that might alter our assumptions.  Thanks.

Jim

-----Original Message-----
From: owner-emc-p...@majordomo.ieee.org
[mailto:owner-emc-p...@majordomo.ieee.org]On Behalf Of
m.bushn...@ieee.org
Sent: Monday, October 28, 2002 4:28 PM
To: emc-p...@majordomo.ieee.org
Subject: RE: RTCA document vs. IEC 60601-1-02


Late reply:
I have not looked at DO-199, but I noticed that RTCA also has the
following
document:
DO-233 Issued: 08/20/1996
Description: This document addresses the potential interference to
installed
aircraft electrical and electronic systems from Portable Electronic
Devices
(PEDs) carried aboard by passengers. It defines the potential
interference
phenomena; outlines the risk potential from interference events;
provides test
methods to determine whether or not a potential for interference
exists for
certain PEDs, aircraft and combinations thereof; and addresses
acceptable
levels of interference. The report also recommends modification of
Federal
Aviation Regulation 91.21, continued PEDs testing to identify and
better define
the possibility of interference to aircraft electronic systems,
increased
public awareness of the potential for interference from PEDs, and
the
development and use of devices to detect spurious PEDs emissions.

FYI, here is the descriptions for DO-199 Volumes I and II:
DO-199 Issued: 09/16/1988
Description: Reports on the investigation to determine potential
interference
effects to aircraft electronic systems due to emissions from
self-powered
portable electronic and electrical devices operated aboard aircraft.
Recommends
regulatory actions relating to operation and identification of
passenger-
operated devices to assure control of possible sources of
interference, and
recommends standardized procedures for reporting suspected
interference. Volume
I is the basic report and includes background, data collection, data
analysis,
conclusions and recommendations. Volume II provides amplification or
background
material for some of the summary data included in the basic report.
Superseded
DO-119

Sincerely,
Mark E. Bushnell, Technical Writer IEEE EMC P299 WG
m.bushn...@ieee.org
L-3 communications Integrated Systems, Greenville, Texas
Tel. 903.457.6375  Fax 903.457.4413
This message is printed on 100% recycled electrons.
________________________________________________
----------
From:   Ron[SMTP:r...@vascor.com]
Reply To:       Ron
Sent:   Friday, September 13, 2002 01:58 PM
To:     EMC
Subject:        RTCA document vs. IEC 60601-1-02


I recently came across a synopsis of document DO-199, "Potential
Interference to Aircraft Electronic Equipment from Devices Carried
Aboard".
Since I don't have the complete document, does anyone know if this
document
contains EMC specs/limits on RF emissions, etc.  Are these the same
specs/limits as outlined in IEC 60601-1-02?  ... same as CISPR 11?

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