Multi-Tech Systems F2, MTCBA-G-F1 manual Electrical Characteristics, Antenna/RF Specifications

				Chapter 1 – Product Description and Specifications
Electrical Characteristics
	Electrical Characteristics
	Switching the GSM modem on/off	The device is permanently powered (when connected to the power
		supply).
	Voltage Range	Voltage range : 5 to 32V DC
		GND : 0V
	Over voltage and Under voltage	Correct operation of the Wireless MultiModem in communication mode is
		not guaranteed if input voltage falls below 5V.
	Input/output electrical characteristics for external connections
	Parameters		GSM/GPRS 850/900			GSM/GPRS 1800/1900			Unit
				Typ.			Typ.
					32
	Input Supply Voltage		5	13.2		5	13.2	32	V
	Input peak supply current in comm. mode at Pmax		1	.4	.2	1	.4	.2	A
	Input average supply current in comm. mode at		360	150	75	300	125	70	mA
	Pmax
					10
	Input average supply current in idle mode		30	10		30	10	10	mA

Antenna/RF Specifications

	GSM 850	EGSM 900
Frequency RX	869 to 894 MHz	925 to 960 MHz
Frequency TX	824 to 849 MHz	880 to 915 MHz
RF Power Stand	2W at 12.5% duty cycle	2W at 12.5% duty cycle
Impedance	50 ohms
VSWR	<2
Typical Radiated Gain	0 dBi on azimuth plane

	GSM 1800	GSM 1900
Frequency RX	1805 to 1880 MHz	1930 to 1990 MHz
Frequency TX	1710 to 1785 MHz	1850 to 1910 MHz
RF Power Stand	1W at 12.5% duty cycle	1W at 12.5% duty cycle
Impedance	50 ohms
VSWR	<2
Typical Radiated Gain	0 dBi on azimuth plane

Multi-Tech Systems, Inc. MultiModem GPRS Wireless Modem User Guide 7