| Key Features | - Working frequency: quad-band network, 850 / 900 / 1800 / 1900MHz, Working voltage: 4.8-9VDC(On-board voltage regulator circuit supply power for A6 module), Working Current: maximum of 2A, Sleep Current: 5mA, Onboard Micro SIM card holder, you can install Micro SIM card, Onboard Micro USB interface for external power supply, Communication Interface: TTL serial port / RS232 serial port, Baud rate: 115200bps and it can also be set by AT command., Interface logic voltage: 3.3V, Make and answer phone calls using a headset and electret microphone, Send and receive SMS messages, Send and receive GPRS data (TCP/IP, HTTP, etc.), Be used to test the Ai-Thinker GPRS A6 module, Pin pitch: 2.54mm, Onboard antenna interface: SMA and IPX, Antenna: Suitable for SIM800L GSM modules / FOR Arduino SIM900 GPRS Shield, Antenna: Frequency: 780MHz ~ 960MHz .1710MHz ~ 2170MHz, Antenna gain: +2.0 ± 0.7 dBi @ 880 MHz, +2.0 ± 0.7 dBi @ 1800 MHz, Antenna: S.W.R <= 2.0 @ 2100 MHz ~ 2500 MHz, Antenna: Output Impedance: 50 Ohm, Antenna interface: SMA
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