Radio Interference; More Than One Cordless Telephone - Uniden MER 9600C Manual

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, refrigerator,
vacuum cleaner, fluorescent lighting, or electrical storm. Your unit is
NOT DEFECTIVE. If these noises continue and are too distracting,
please 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 for interference. Be certain that the antenna on the unit is
fully extended when needed.
In the unlikely event that you consistently hear other voices or
distracting transmissions on your phone, you may be receiving radio
signals from another cordless telephone or other source of
interference. If you cannot eliminate this type of interference, you
need to change to a different channel.
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. This telephone will
automatically select a channel that provides the clearest
communication.
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