Installing the dual-antenna mode (optional)
3-26
Chapter 3: Installation
98-133966-G1
3.6
Installing the dual-antenna
mode (optional)
You can use the SAILOR 900 VSAT in dual antenna mode with 2 ADUs,
2 ACUs and the dual-antenna accessories kit. The kit consists of two 75
Ohm RF cables, an RF splitter and an RF combiner. In case one antenna
enters a blocking zone, the other antenna of the dual-antenna system
takes over and the system continues working.
There is a Master ACU and a Slave ACU. The VSAT modem is connected
to and configured in the Master ACU. The Slave ACU is configured as a
slave unit. It is connected with an Ethernet cable to the Master ACU
from which it gets all satellite information.
The switching from one antenna to the other is done based on the
programmed blocking zones in the two antennas and takes effect
whenever signal blockages occur from cranes etc.
To install the dual antennas, do as follows:
1. Install the master ADU, ACU, the RX combiner and the VSAT modem
2. Install the slave ADU, ACU, the TX splitter as shown below.
Figure 3-25: Dual mode antenna, overview
VSAT modem
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Summary of Contents for Sailor 900 VSAT
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