Fora FocusTemp IR42a Operating Instructions Manual page 22

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 FocusTemp is used exceeds the applicable RF compliance level
above, the FocusTemp should be observed to verify normal operation.
If abnormal performance is observed, additional measures may be
necessary, such as re-orienting or relocating the FocusTemp.
b. Over the frequency range 150 kHz to 80 MHz, field strengths should be
less than 3 V/m.
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