Comtech EF Data SPOD PS 1, PS 1.5, and PS 2 C-, X-, or Ku-Band - Manual (Page 19)

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SPOD PS 1 SPOD PS 1.5 SPOD PS 2
Chapter 1. INTRODUCTION
1.1 Overview
Comtech EF Data’s SPOD family of C-, X-, and Ku-Band Outdoor Amplifiers – referred to
throughout this manual as the SPOD – deliver their rated power, guaranteed, to the transmit
waveguide flange at the 1 dB compression point. The SPOD provides a cost effective, more
reliable replacement for Traveling Wave Tube (TWT) amplifiers in satellite communications.
Figure 1-1. Comtech EF Data SPOD Outdoor Amplifiers
1.2 Functional Description
The compact size and weight of the SPOD lends itself to any installation with limited available
mounting space. These include ship-borne antenna systems, small “flyaway” systems, and
Satellite News Gathering (SNG) installations.
As shown in Figure 1-1, the SPOD is available in three models: the PS 1, PS 1.5, and PS 2. Each
SPOD consists of a CEFD Solid-State Power Amplifier (SSPA) module with a Monitor/Control
Processor (MCP), a power supply, and one or two fan assemblies. The amplifier features a
Comtech EF Data low-loss combining technique and MCP-based temperature-versus-gain
compensation.
The SPODs are configured as SSPAs (RF in, RF out). The PS 1 and PS 1.5 models have available
power levels to 100W; the PS 2 model can be configured at power levels to 250W.