This is professional version serial GSM / GPRS core development board based on GPRS A6 module. It supports dual-band GSM/GPRS network, available for GPRS and SMS message data remote transmission.
The board features compact size and low current consumption. With power saving technique, the current consumption is as low as 3mA in sleep mode.
It communicates with microcontroller via UART port, supports command including GSM 07.07, GSM 07.05 and Ai-Thinker enhanced AT Commands.
About the Antenna:
- Suitable for SIM800L GSM modules / Arduino SIM900 GPRS Shield
- Frequency: 780MHz ~ 960MHz .1710MHz ~ 2170MHz
- Antenna gain: +2.0 ± 0.7 dBi @ 880 MHz, +2.0 ± 0.7 dBi @ 1800 MHz
- S.W.R <= 2.0 @ 2100 MHz ~ 2500 MHz
- Output Impedance: 50 Ohm
- Antenna interface: SMA