Instruction manual

LS300G GSM/GPRS/EDGE/HSPA+ Sierra Wireless Cellular Modem

o The 21831 Half-Wave Dipole Whip Antenna is a lower gain antenna

used in transmitting short distances. It is an 800 MHz cellular antenna

that terminates in a SMA male connector for attachment to the

modem. This antenna is intended for use inside the enclosure. Please

note that the backplate of the enclosure is a grounded plane. If it is

interposed between the antenna and the cell tower, it may attenuate

the strength of the transmission signal. Simply turning the enclosure

90 to 180 degrees on its mounting mast may solve weak transmission

issues.