Ecovacs Robotics Co. Ltd. LSD4RF Manuel D’Utilisation

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Changes or modifications not expressly approved by the party responsible for compliance could 
void the user’s authority to operate the equipment. 
Under Industry Canada regulations, this radio transmitter may only operate using an antenna 
of a type and maximum (or lesser) gain approved for the transmitter by Industry Canada. To 
reduce potential radio interference to other users, the antenna type and its gain should be so 
chosen that the equivalent isotropically radiated power (e.i.r.p.) is not more than that 
necessary for successful communication. 
 
The antenna of the module has been printed on it. 
The frequency of the is 2400~2483.5MHz. 
And the required impedance is 50 ohm.