Hum
can be heard in the audio program.
• Disconnect grounding LINK.
• Check continuity of output cables
(particularly shields).
• Disconnect shields on one end of
output cables. Connect grounding
LINK.
Radio Frequency Interference
can be heard in the audio program
(swishing sound or audio from a radio
transmitter).
Make sure that mic cables are of good
quality and that the shield is properly
connected. Avoid excessive length.
• Make sure that earth ground connec-
tion is maintained via the AC power
cord DO NOT use an isolator.
• Make sure the unit is located away
from known sources of radio frequen-
cy energy.
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