Huawei E169 Manual page 22

Class B Digital Device
This equipment has been tested and found to
comply with the limits for a Class B digital
device, pursuant to Part 15 of the FCC Rules.
These limits are designed to provide reasonable
protection against harmful interference in a
residential installation. This equipment
generates, uses and can radiate radio
frequency energy and, if not installed and used
in accordance with the instructions, may cause
harmful interference to radio communications.
However, there is no guarantee that
interference will not occur in a particular
installation.
If this equipment does cause harmful
interference to radio or television reception,
which can be determined by turning the
equipment off and on, the user is encouraged
to try to correct the interference by one or
more of the following measures:
Reorient or relocate the receiving
antenna.
Increase the separation between the
equipment and receiver.
Connect the equipment into an outlet on
a circuit different from that to which the
receiver is connected.
Consult the dealer or an experienced
radio/TV technician for help.
Warning: Changes or modifications made to
this equipment not expressly approved by
HUAWEI may void the FCC authorization to
operate this equipment.
* This device should be installed and operated
with a minimum distance of 20 cm between
the radiator and your body when using it via
USB cable.
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