US Robotics USR3520 User Manual page 90


CDMA bands: BC0,1
Output Power

Power Class 4 (2W, 33dBm) for GSM, GPRS 850/900 MHz bands

Power Class 1 (1W, 30dBm) for GSM, GPRS 1800/1900 MHz bands

Power Class E2 (0.5W, 27dBm) for Edge 850/900MHz bands

Power Class E2 (0.4W, 26dBm) for Edge 1800/1900 MHz bands

Power Class 3 (0.25W, 24dBm) for UMTS 850/900/1900/2100 MHz bands
Antenna Interfaces
Main WWAN Antenna
The main antenna is labelled WWAN Main on the front panel.
Connectors

The RF connector on the Gateway is SMA female.

The antenna itself or the connector to the antenna should be SMA male.
Frequency Range

Allows all frequency bands which the integrator wants to use
Performance

Radiation pattern: Omni-directional

Efficiency over all used frequencies: > 50%

Maximum VSWR: < 2.5:1 with 50 ohm reference impedance
Polarization

Linear
Revision: 1.00 Copyright 2015 U.S. Robotics Corporation
Learn about antenna recommendations.
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