User's Manual

6 FCC RF exposure requirements
To allow compliance with the FCC RF exposure requirements, the SIM300’s
maximum output power is 33dBm in GSM900 band and 30dBm in
DCS1800/PCS1900 band，and the maximum antenna gain is 3dBi and the minimum
cable loss is 0.5dB。The antenna(s) used for this transmitter must be installed to
provide a separation distance of at least 20 cm from all persons and must not be
co-located or operating in conjunction with any other antenna or transmitter。