User's Manual

The transmission distance
is too close
Check the RX and TX antenna are in a opposite
position
If there are electronic wire around the TX
antenna, please keep the electronic wire far
away from the antenna
If the TX antenna is close to the metal, please
keep the antenna far away from the metal
8. FCC Important Note
FCC Part 15.19 Warning Statement
THIS DEVICE COMPLIES WITH PART 15 OF THE FCC RULES.
OPERATION IS SUBJECT TO THE FOLLOWING TWO
CONDITIONS: (1) THIS DEVICE MAY NOT CAUSE HARMFUL
INTERFERENCE, AND (2) THIS DEVICE MUST ACCEPT ANY
INTERFERENCE RECEIVED, INCLUDING INTERFERENCE THAT
MAY CAUSE UNDESIRED OPERATION.
FCC Part 15.21 Warning Statement
NOTE: THE GRANTEE IS NOT RESPONSIBLE FOR ANY
CHANGES OR MODIFICATIONS NOT EXPRESSLY APPROVED BY
THE PARTY RESPONSIBLE FOR COMPLIANCE. SUCH
MODIFICATIONS COULD VOID THE USER’S AUTHORITY TO
OPERATE THE EQUIPMENT.