The following was received from the ERO in Europe:
"Dear Mr Ackerly,
We have similar problems in Europe! The problems
are usually interference
from amateur or other powerful transmitters
in adjacent bands into short
range devices (SRD) operating in the ISM band
(433.050 - 434.790 MHz). A
common feature is the relatively poor selectivity
of the SRD receivers
(usually SAW devices). Hence the trend
in Europe, for professional SRD
applications at least, is now to move to the
868 -870 MHz band - I'm not
sure this band is available in Region 3 (Australasia)."