Worldwide aviation frequencies are still a matter of public record. The
most critical frequencies that come to mind where you are would be those
used in Instrument Landing System/Glide Slope operation, sometimes linked
to flight controls for fully automatic landings, and those just above 1 GHz
use
ent: 1/15/2009 4:00:40 AM
Subject: RE: Anechoic chambers: risks of energy leaking out
... An alternative view, would be to treat the fixed installation (the
EMC
Facility) and apply the limits of a well known EN for radiated emissions - at
10m from the screened room. If yo
In message <860439.96457...@web83107.mail.mud.yahoo.com>, dated Thu, 15
Jan 2009, FRED TOWNSEND writes:
>I don't think you'll find a list of important frequencies . If there
>were such a thing it would be like the terrorist handbook on how to
>bring down an airliner. I can tell you a lot of E
In message
<201048ea81ba0745aca78e4cc883900104290...@desmdswms201.des.grplnk.net>,
dated Thu, 15 Jan 2009, "Haynes, Tim (SELEX GALILEO, UK)"
writes:
>John, I will send the HTML pages that I downloaded from Ofcom under a
>plain cover J
Thanks.
--
OOO - Own Opinions Only. Try www.jmwa.demon.
Further to my last e-mail,
http://www.opsi.gov.uk/si/si1989/Uksi_19891842_en_1.htm
Is the Statutory Instrument, at the bottom of which is a link with the
word "continue" that links to the table at
http://www.opsi.gov.uk/si/si1989/Uksi_19891842_en_2.htm
Regards
Tim
SELEX Sensors and Airborne
g] On Behalf Of John
Woodgate
Sent: Thursday, January 15, 2009 9:21 AM
To: emc-p...@ieee.org
Subject: Re: Anechoic chambers: risks of energy leaking out
*** WARNING ***
This mail has originated outside your organization, either from an
external partner or the Global Internet.
Gert:
I don't think you'll find a list of important frequencies . If there were such
a thing it would be like the terrorist handbook on how to bring down an
airliner. I can tell you a lot of EMI immunity goes into every Boeing
airplane.
Fred Townsend
From: Ger
In message
<201048ea81ba0745aca78e4cc883900104290...@desmdswms201.des.grplnk.net>,
dated Thu, 15 Jan 2009, "Haynes, Tim (SELEX GALILEO, UK)"
writes:
>Strangely, there is a UK Statutory Instrument regarding Suppressed
>Radiation which dictates the limits of radiation detectable outside the
>
Sorry - errata
where I said " filling the hole with a dielectric effectively increases the
frequency that it will pass" that should read " filling the hole with a
dielectric effectively decreases the frequency that it will pass"
regards
Tim
Tim Haynes A1N10
Electroma
Hi again,
Covering comments since I last posted - yes chokes may provide sufficient
attenuation for the purpose - but to confirm this all the possible issues need
to be considered.
With a waveguide beyond cut off, filling the hole with a dielectric
effectively increases the frequency that it wil
Hi Gert,
ILS (Instrument Landing System) operates in the VHF band (108-118 MHz).
There is also DME (Distance measuring equipment) which operates in the
960-1215MHz band.
Mvg,
Willem Jan Jong
From: emc-p...@ieee.org [mailto:emc-p...@ieee.org] On Behalf Of Gert
Gremmen
Sent: donderdag 15 janu
Aircraft VOR (vhf omni-range) frequencies are from 108-118 MHz.
Aircraft COMM to tower 116-152 MHz.
Glideslope signal is 329-335 MHz.
Marker Beacon is at 75 MHz.
DME is 960-1215 MHz.
These have been around forever. There may be newer stuff I haven't listed.
Ken Javor
Phone: (256) 650-5261
> F
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