User's Manual

12
2.3.2 Electrical Interference
Electrical faults in appliances and other electrical equipment can cause interference
such as static, hum, crackling, buzzing and zip sounds in the headset when the
system is active. Interference caused by electrical faults in lighting systems might
not be noticed immediately, since most lighting systems are controlled by a timer or
light-sensing device.
Faulty Wiring or Components:
Faulty components or electrical wiring in menu boards or speaker posts can cause
symptoms identical to those caused by AM interference. Remove power to the menu
board or speaker post at the circuit breaker until the electrical system can be repaired.
Improper Earth Grounds:
Improper earth grounds in the building can cause random buzzing and zip sounds in
the headset when operating in either channel A or B. Placing a surge protector between
the base station AC adapter and the electrical outlet can eliminate the problem.
In the event of an electrical power outage —
such as from a lightning storm or power generator failure, if you experience problems with your
HME equipment after the electricity comes on again, unplug the equipment and wait 15 seconds,
then plug it back in.