GSM quad-band antennas cover all four GSM frequencies (850/900/1800/1900 MHz) via SMA connector for 2G modem modules, alarm communicators, and legacy cellular devices requiring global frequency coverage.
| Pin | Name | Function | Type |
|---|---|---|---|
| 1 | Center | GSM RF signal multi-band | BUS |
| 2 | Outer | Ground | GND |
GSM quad-band antennas cover all four GSM frequencies (850/900/1800/1900 MHz) via SMA connector for 2G modem modules, alarm communicators, and legacy cellular devices requiring global frequency coverage.