Comtech EF Data KPA-020IN, Installation And Operation Manual

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Ku-Band Solid-State Power Amplifier Revision 0
Installation MN/KPA.IOM
2-6
Perform the installation as follows:
Step Procedure
1 Assemble the waveguide load and bend to the proper port of the switch.
2 Attach the rigid lower waveguide arm, using the supplied screws. The switch should be
installed with “Port 1” facing outward.
3 The upper Waveguide (flexible arm) along with the isolator bracket should be installed
next.
4 Complete the installation by attaching the coaxial cables, coaxial load, and control
cables.
5 Note that the installation of the control cables determines which unit will function as the
backup KPA. Due to the nature of the dual WG-coax switch, this will always be the
upper unit. Therefore, the end of the redundant loop cable (40, Figure 2-1) labeled “BU
SSPA,” should be connected to J4 of the upper (back-up) unit.
6 The appropriate end of the control cable attaching to the Waveguide switch (50) should
also be attached to the backup unit (J7).
Note: Redundancy kits with all the cabling and switches for a 1:2 configuration also are
available, and are usually designed to a particular customer’s specifications. Contact
Comtech EF Data for 1:2 redundancy kits and installation diagrams.