Motorola DC600 Start Here Manual page 6

Safety and General Information
Electromagnetic Interference/
Compatibility
Note: Nearly every electronic device is susceptible
to Electromagnetic Interference (EMI) if
inadequately shielded, designed, or otherwise
configured for electromagnetic compatibility.
Facilities
To avoid EMI and/or compatibility conflicts, turn off
your device in any facility where posted notices
instruct you to do so. Hospitals or health care
facilities may be using equipment that is sensitive to
external RF energy.
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