Enfora GSM0000PB001MAN Connecting the GSM/GPRS Antenna, GSM/GPRS Spider SA Connecting the Antenna

GSM/GPRS Spider SA User Manual

3.4Connecting the GSM/GPRS Antenna

The antenna is supplied by the user. The antenna must have a nominal impedance of 50 Ohms. The VSWR must be less than 2.0:1. System antenna gain should be 0-2 dB for optimum performance. See section 2 Regulatory Compliance FCC.

There are two varieties of GSM/GPRS Spider SA modems. Model number GSM1202 operates at the 900/1800 MHz frequency band while model number GSM1203 operates in 1900 MHz frequency band. Care needs to be taken when connecting the antenna since the right type of antenna will be required for proper operation of the modem. The antenna connector on the GSM/GPRS Spider SA modem is SMA Female. The antenna has to be connected to the connector labeled “Antenna” as shown below in Figure 7.

Figure 7: GSM/GPRS Spider SA Connecting the Antenna

GSM0000PB001MAN 8 Version 1.07 - 02/14/05