User manual

50
NOTE 1 At 80 MHz and 800 MHz, the higher frequency range
applies.
NOTE  These guidelines may not apply in all situations Elec-
tromagneticpropagationisaffectedbyabsorptionandreflection
fromstructuresobjectsandpeople
aFieldstrengthsfromfixedtransmitterssuchasbasestations
for radio (cellularcordless) telephones and land mobile radios
amateurradioAMandFMradiobroadcastandTVbroadcast
cannot be predicted theoretically with accuracy To assess the
electromagnetic environment due to fixed RF transmitters
anelectromagneticsitesurveyshouldbeconsideredIfthe
measuredfieldstrengthinthelocationinwhichtheCLEAR™
serieshearingaidisusedexceedstheapplicableRFcompliance
levelabovetheCLEAR™serieshearingaidshouldbeobserved
toverifynormaloperationIfabnormalperformanceisobserved
additionalmeasuresmay be necessary such as re-orienting or
re-locatingtheCLEAR™serieshearingaid
bOverthefrequencyrangekHztoMHzfieldstrengths
shouldbelessthanVm
Recommendedseparationdistances
Recommended separation distances between portable and
mobile RF communication equipment and the CLEAR™ series
hearingaids
TheCLEAR™serieshearingaidsareintendedforuseintheelec-
tromagneticenvironmentinwhichRFdisturbancesarecontrolled
Thecustomer ortheuserofthe CLEAR™series hearingaid can
helppreventelectromagneticinterferencebymaintainingamini-
mumdistancebetweenportableandmobileRFcommunications
equipment(transmitters)andtheCLEAR™hearingaidsasrecom-
mendedbelowaccordingtothemaximumoutputpowerofthe
communicationsequipment