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Chapter 1 - System Description
The BTS includes an internal GPS receiver with hold over mechanism in case GPS
is lost or satellites synchronization was not reached. The GPS clock required is
1PPS with accuracy of 10
requirements can be reached by a GPS receiver when it receives at least 4
satellites. After initial synchronization, at least two satellites should be received to
maintain sufficient synchronization.
The system supports chaining of clock signals for up to six collocated units using
a single GPS antenna.
Alvarion offers two types of GPS antennas:
High Profile, active high-gain (35dBi) antenna that can be installed at a
distance of up to 25m from the BTS.
Miniature 28dBi antennas that can be installed at a distance of up to 3m from
the BTS.
BreezeMAX Extreme
-11
and maximum jitter of 100ns. These GPS clock
20
BreezeMAX Extreme
System Manual
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