Bob brings up a good point. The band edge is at 135 kHz and the modulation
sidebands must be down to the specified level at that frequency which limits
the modulation methods. ETSI is considering a revision that will allow a
spectrum mask with some of the modulation components falling outside the
band. However, field testing has indicated that the sideband limits will
have to be lower than originally desired to prevent interference in the
adjacent amateur band.
Richard Woods
----------
From: Jacob Schanker [SMTP:j.schan...@worldnet.att.net]
Sent: Wednesday, September 19, 2001 4:07 PM
To: Sykes, Bob; emc-p...@ieee.org
Subject: Re: 134kHz transmitter in the U.K.
Bob:
You should be aware that there is a UK amateur radio band at 135.7 -
137.8
kHz. Please keep that in mind both from an interference and from an
immunity
standpoint. You'll need to check the RA's website for technical
limitations.
Another resource is the RSGB's website at www.rsgb.org.uk.
Regards,
Jack
Jacob Z. Schanker, P.E.
65 Crandon Way
Rochester, NY 14618
Phone: 716 442 3909
Fax: 716 442 2182
j.schan...@ieee.org
----- Original Message -----
From: Sykes, Bob <bob.sy...@marconi.com>
To: <emc-p...@ieee.org>
Sent: Wednesday, September 19, 2001 10:49 AM
Subject: 134kHz transmitter in the U.K.
>
>
> Greetings,
>
> We are looking at providing a short range RFID system to the U.K.,
and I
am
> tasked with
> determining the regulatory requirements for this system. It
incorporates
a
> low power
> transmitter/receiver operating at 134kHz. I am familiar with the
LVD and
> EMCD requirements,
> but unable to determine RTTE applicability, or whether U.K.
National
> regulations apply.
>
> Any help would be most appreciated.
>
> adTHANKSvance,
>
> -Bob Sykes
> Marconi Commerce Systems
>
>
> -------------------------------------------
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