Diversity Requirements; Supported Frequency Bands - Siemens RUGGEDCOM RX1501 Installation Manual

Chapter 3
Communication Ports
If the application does not meet these requirements, further certification is required.
Section 3.6.2

Diversity Requirements

Diversity, where two antennas exist within the same physical housing, is a method for improving radio signal
strength. When two antennas are present, the following requirements must be met:
• Antenna isolation must be minimum 10 dB to prevent the receive antenna from picking up too much power
from the transmit antenna.
• Performance characteristics of the transmit and receive antennas must be comparable.
• The performance of the receive antenna, as measured by forward link throughput, must be 0 to 3 dB better
than a single antenna.
Section 3.6.3

Supported Frequency Bands

The following frequency bands are supported by the available cellular modem modules.
WARNING!
Electromagnetic radiation hazard – risk of serious injury. Do not exceed the maximum antenna gain.
Aside from causing cellular interference for other devices that use the same band, adverse health
effects for individuals in the area may occur.
Band
Band I
WCDMA 2100
Band II
WCDMA 1900
Band VIII
WCDMA 900
Band V
WCDMA 850
Band VI
WCDMA 800
GSM 850
EGSM 900
GSM 1800
GSM 1900
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Gain limits are reported on certification grants, for consideration against Radio Frequency (RF) exposure and Effective Radiated Power (ERP)/Effective Isotropic
Radiated Power (EIRP) limits.
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Frequency Range
Tx (MHz) VSWR
1920-1980 < 2.5:1
1850-1910 < 2.5:1
880-915 < 2.5:1
824-849 < 2.5:1
830-840 < 2.5:1
824-849 < 2.5:1
880-915 < 2.5:1
1710-1785 < 2.5:1
1850-1910 < 2.5:1
Rx (MHz) VSWR
2110-2170 < 3.5:1
1930-1990 < 2.5:1
925-960 < 3.5:1
869-894 < 3.5:1
875-885 < 3.5:1
869-894 < 3.5:1
925-960 < 3.5:1
1805-1880 < 3.5:1
1930-1990 < 2.5:1
RUGGEDCOM RX1501
Installation Guide
Maximum
RX Diversity
Allowable
Support
Gain (dBi)
4
ü
4
ü
5
ü
5
ü
5
ü
5
û
5
û
4
û
4
û
Diversity Requirements
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