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Guidance and Manufacturer’s Declaration: Electromagnetic Immunity
SDC Ultra™ is intended for use in the electromagnetic environment specified below. The customer or
the user of SDC Ultra should ensure that it is used in such an environment.
(a) Field strengths from fixed transmitters, such as base stations for radio (cellular/cordless) tele-
phones and land mobile radios, amateur radio, AM and FM radio broadcast, and TV broadcast, can-
not 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 SDC Ultra system is used exceeds the applicable RF compliance level
above, the SDC Ultra system should be observed to verify normal operation. If abnormal performance
is observed, additional measures may be necessary, such as reorienting or relocating the SDC Ultra
unit.
(b) Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m.
