STM SatLink VSAT - Appendix G. Satlink 403 X: Interfacing Vsat Rx;Tx Antennas

SatLink VSAT User Guide
Publication no. 101557
Rev 14.1.1-2
Copyright 2006-2012 – STM Group, Inc.
Page 154 (182)
Appendix G. SatLink 403x: Interfacing VSAT RX/TX
Antennas
The SatLink 403x series of Ku-band transceivers is configured with internal OMT as shown in Figure 60
below. The output interface of the transceiver (C120) is therefore connected directly to the feed horn of
the antenna.
Figure 60: SatLink 403x Output Interface (Option A)
Antenna vendors offer different variants of the feed horn for their Ku-band RX/TX
antennas. The different options are listed below.
Option
Feed Horn Interface
A
C120 – 6 UNC screws
B
C120 – 6 or 8 M4 screws
Option A interfaces the SatLink 403x directly, while Option B requires an adaptor in order to fit the
SatLink 403x output interface. The hole patterns for option A and B are shown in Figure 61 and Figure
62.
Figure 61: Option A Antenna Feed
Hole Pattern. Holes are distributed
equally at 60 degrees apart. The
SatLink 403x fits directly to this
pattern using 6 UNC screws for
fastening.
Figure 62: Option B antenna Feed Hole Pattern. Holes are
equally distributed at 45 degrees apart. Some versions have
only 6 holes. SatLink 403x fits on this pattern by means of
adapter SatLink 4901 (STM P/N 107268).