User's Manual

MM-015039-001, Rev. H
30
The MASTR V HPA series EA-555014 is also equipped with an RF linearizer circuit to improve RF
performance. The RF linearizer samples the RF output of the HPA, and provides waveform correction to
the RF input signal relative to its RF output characteristics. This improves waveform distortion.
Figure 4-10: High Power Amplifier Module with Integrated Linearizer
Table 4-12: HPA Front Panel Indicators and Switches
INDICATOR/CONTROL
INDICATOR COLOR
DESCRIPTION
TX Disable LED
Off
Normal Operation
Yellow
PA Disabled
Status LED
Off
No Status
Green Solid
PA Active (Keyed)
Green Flashing
TX Inhibit
Red Solid
Major Fault
Red Flashing
Minor Fault
Yellow Solid
Flash Write
Yellow Flashing
Program Downloading
Activity LED
Off
No Activity
Green Solid
Ethernet Activity
Red Solid
Loss of Ethernet Activity