D-Link DWM-156 User Manual page 20

‐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.
Changes or modifications not expressly approved by the party
responsible for compliance could void the user's authority to
operate the equipment.
The antenna(s) used for this transmitter must not be co‐located
or operating in conjunction with any other antenna or
transmitter.