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KA9LCF > NEWS 28.04.12 00:01l 71 Lines 2732 Bytes #999 (0) @ ALLIN
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Subj: ARN: 2012 Olympics
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From: KA9LCF@KA9LCF.#NEIN.IN.USA.NOAM
To : NEWS@ALLIN
2012 OLYMPICS: UK REGULATOR OFCOM ANNOUNCES HAM BAND
RESTRICTIONS DURING 2012 OLYMPICS
Details of amateur band frequency restrictions during the
London 2012 Olympic and Paralympic Games have now been
released by U-K Telecommunications regulator Ofcom. The
greatest impact to ham radio appears to be satellite and
other operations in the 436 to 437 Mhz segment of 70
centimeters. Amateur Radio Newsline's Norm Seeley, KI7UP,
explains why:
--
Parts of the 70, 13 and 9 centimeter amateur bands in the
United Kingdom will face restrictions between June 28th and
September 23rd. This, due to need for spectrum during the
2012 Olympic and Paralympic Games.
The restrictions only apply in geographically limited areas,
with 70cm being particularly affected around London and
Weymouth. Also hard hit by the restrictions will be ham
radio satellite operations.
According to a notice on the AMSAT-UK web site the Amateur-
satellite Service allocation in the 435 to 438 MHz range
will be restricted to 436.25 to 437.25 MHz. This is based
on an understanding that the equipment being used for
Olympics communications in the 430 MHz band will include
handheld FM rigs at the hotels, the routes to the venues and
at the venues themselves.
The U-K communications regulator Ofcom say the use of radio
by amateurs in the designated areas could cause interference
to various communications at the games. Also, it is
possible that higher power transmissions from outside these
areas could cause interference as well. Consequently, to
avoid the risk of interference, Ofcom has requested that
United Kingdom amateurs do not operate within the frequency
ranges it has outlined. This says AMSAT-UK means that the
spectrum identified by Ofcom should be avoided for a
considerable distance outside the designated Olympic
communications zones.
AMSAT-UK notes that a well equipped station on a good site
75 km or more from the edge of an Olympics communications
zone could still put a fairly decent signal into that area.
Newsline did a bit of research and found that the closest
heavily populated mainland European city to London appears
to be Calais, France. This is mainly over water path only
about 93 airline miles or 149 kilometers away from the
closest Olympic venue.
That said, Ofcom has so far not asked the French or any
other European telecommunications administrations to
restrict their nations Amateur Service allocations during
the Olympic and Paralympic games.
For the Amateur Radio Newsline, Im Norm Seeley, KI7UP, far
from the U-K in Scottsdale, Arizona.
--
More on this is on-line at www.uk.amsat.org/6574 and
RSGB.org/olympics. (GB2RS, AMSAT-UK, ARNewslineT)
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