NEC Univerge SV9100 Hardware Manual page 393

UNIVERGE SV9100
Range
Nominal values of the DECT system are:
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The telephone is designed to achieve a maximum range of up to 350 feet (107
metres) (depending upon the environment). This phone has been rated to operate at
a maximum distance with the qualification that the range depends upon the
environment in which the telephone is used. Many factors limit range, and it would be
impossible to include all of the variables in our rating. The maximum range rating of
this telephone is meant to be used as a means of comparison against other range
claims.
Radio Interference
Radio interference may occasionally cause buzzing and humming in your cordless
handset, or clicking noises in the base unit. This interference is caused by external
sources such as TV, fluorescent lighting, or electrical storm. Your unit is NOT
DEFECTIVE. If these noises continue and are too distracting, check around your
office to see what appliances may be causing the problem. In addition, we
recommend that the base not be plugged into a circuit that also powers a major
appliance because of the potential of interference.
In the unlikely event that you consistently hear other voices or distracting
transmissions on your telephone, you may be receiving radio signals for another
cordless telephone or other source of interference.
Finally, it should be noted that some cordless telephones operate at frequencies that
may cause interference to nearby TVs and VCRs. To minimize or prevent such
interference, the base of the cordless telephone should not be placed near or on top
of a TV or VCR. If interference is experienced, moving the cordless telephone farther
away from the TV or VCR will often reduce or eliminate the interference.
More than One Cordless Telephone
If you want to use more than one cordless telephone in your office, they must operate
on different channels and more than 20 feet apart.
If more than eight DTL-8R-1s are used in the same area, there is a possibility that the
following problem occurs:
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System Hardware Manual
164 feet (50 meters) – Indoor
984 feet (300 meters) – Outdoor
Difficulty connecting the Handset with the Base Unit
Some noises can be heard during conversation
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