Sierra Wireless GL6100, User Manual

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WA_DEV_GL6100_PTS_001 Rev 002 May 24, 2010 29
GL61x0 Product Technical
Specification and User Guide
Functional Specifications
4.2. RF Functionalities
The Radio Frequency (RF) component of the GL61x0 is based on a specific quad-band chip that
contains the following:

Digital low-IF receiver

Quad-band LNA (Low Noise Amplifier)

Offset PLL (Phase Locked Loop) transmitter

Frequency synthesizer

Digitally controlled crystal oscillator (DCXO)

Tx / Rx FEM (Front-End Module) for quad-band GSM/GPRS
The Radio Frequency (RF) range complies with Phase II EGSM 900/DCS 1800 and GSM 850/PCS
1900 recommendations. The corresponding frequency recommendations for both transmission and
reception bands are listed in the table below.
Table 12: Supported RF Frequencies
Transmit Band (Tx) Receive Band (Rx)
GSM 850 824 to 849 MHz 869 to 894 MHz
E-GSM 900 880 to 915 MHz 925 to 960 MHz
DCS 1800 1710 to 1785 MHz 1805 to 1880 MHz
PCS 1900 1850 to 1910 MHz 1930 to 1990 MHz
4.3. Operating System
The GL61x0 is Sierra Wireless Software Suite compliant. With Sierra Wireless Software Suite,
customers can embed their own applications with the GL61x0 and turn it into a solution for their
specific market need. The operating system of the GL61x0 is also responsible for the following
functions:

AT command processing

Real Time Clock (RTC) with calendar

Full GSM or GSM/GPRS Operating System stack