Enfora GSM2218 ユーザーズマニュアル
GSM2218PB001MAN - GSM/GPRS MT-GL User Manual
Page 14
Copyright 2005, Enfora L.P
2.5 Connecting GSM/GPRS modem Antenna
The user must supply the GSM/GPRS antenna. 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.
Ohms. The VSWR must be less than 2.0:1. System antenna gain should be 0 – 2 dB for optimum
performance.
The antenna connector on the GSM/GPRS MT-GL model is a TNC female connector.
The antenna has to be connected to the connector labeled “MODEM ANT”. See Figure 11 -
GSM/GPRS Antenna Connection.
The antenna has to be connected to the connector labeled “MODEM ANT”. See Figure 11 -
GSM/GPRS Antenna Connection.
GSM/GPRS
Antenna
Figure 11 - GSM/GPRS Antenna Connection