18
Important Notes on
Operation
Notes on Using the Microphone
• The digital wireless microphone system product must be
used within a temperature range of 0 °C to 50 °C (32 °F
to 122 °F).
• Operating the microphone near electrical equipment
(motors, transformers, or dimmers) may cause it to be
affected by electromagnetic induction. Keep the
microphone as far from such equipment as possible.
• The presence of the lighting equipment may produce
electrical interference over the entire frequency range.
Position the microphone so that interference is
minimized.
• To avoid degradation of the signal-to-noise ratio, do not
use the microphone in noisy places or in locations
subject to vibration, such as the following:
- near electrical equipment, such as motors,
transformers or dimmers
- near air conditioning equipment or places subject to
direct air flow from an air conditioner
- near public address loudspeakers
- where adjacent equipment might knock against the
tuner
Keep the microphone as far from such equipment as
possible or use buffering material.
On Cleaning
• If the microphone is used in a very humid or dusty place
or in a place subject to an active gas, clean its surface as
well as the connectors with a dry, soft cloth soon after
use. Lengthy use of the microphone in such places or not
cleaning it after its use in such places may shorten its
life.
• Clean the surface and the connectors of the microphone
with a dry, soft cloth. Never use thinner, benzene,
alcohol or any other chemicals, since these may mar the
finish.
Notes on Simultaneous Multi-Channel
Operation
• Keep the microphone at least 30 cm (11
7
/
8
inches) away
from another transmitter/microphone.
When the distances between transmitters and microphones
need to be closer than the distances above, use a grouping
system for multi-channel systems that include both digital
wireless and analog wireless devices.
For details, refer to “Sony Digital Wireless Microphone
System Frequency Lists” on the supplied CD-ROM.
• When only digital wireless microphones are being used,
keep the microphone at least 4 m (13 feet) away from the
antenna of a receiver for up to 10 channels, and at least
6 m (20 feet) away for 11 or more channels.
• When a mixture of digital and analog wireless
microphones/transmitters is being used, keep the
microphone at least 6 m (20 feet) away from the antenna
of a receiver.
• This system should be kept at least 100 m (328 feet)
away from any analog wireless systems using the same
frequency when both are being used in a wide area with
no walls or obstructions.
• If you experience noise, increase the distance between
the microphone and receiver or decrease the
transmission power on the microphone.
To prevent electromagnetic interference from portable
communication devices
The use of portable telephones and other communication
devices near the DWM-02N may result in malfunction and
interference with audio signals. It is recommended that
portable communication devices near the DWM-02N be
turned off.
