Table of Contents
Advertisement
5.2.5.5
UTILITY: LNA
LNA: ConvA ConvB
When the MBT-5000A has an LNA current supply, this screen permits you to enable or disable
the LNA operation, allow calibration of the LNA reference current, and set the window (range) for
alarms and faults.
Use the ◄ ► arrow keys to select ConvA or ConvB, and then press ENTER. For either selection,
when no LNA is present, the unit displays the following message:
This converter does NOT
Have LNA Power Source.
5.2.5.5.1
LNA: ConvX (ConvA or ConvB)
ConvX LNA: Enable Calibr
Window:
Enable Range
Use the ▼▲ arrow keys to select the top line or bottom line. Then:
•
On the top line – Use the ◄ ► arrows keys to select Enable (LNA Operation) or Calibr
(Reference current Calibration).
•
On the bottom line – Use the ◄ ► arrows keys to select Enable (LNA alarms/faults) or
Range (alarms/faults window).
Press ENTER to continue.
ConvX LNA: Enable (LNA Operation)
ConvX LNA Current Src:
Disable Enable (◄ ► E)
On the bottom line, use the ◄ ► arrow keys to select Disable or Enable, and then press
ENTER.
ConvX LNA: Calibr (Calibrate Reference Current)
ConvX LNA Ref = 400.0 mA
Calibrate: No Yes (◄ ► E)
On the bottom line, use the ◄ ► arrow keys to select No or Yes, and then press ENTER. If
you select Yes and the LNA successfully calibrates, the current value appears on the top line of
the screen (e.g., 400.0 mA).
If calibration fails, however, the error message "Calibration failed. Out of Range." Displays, an
the MBT-500 returns you to the previous menu. You will also observe, once the previous menu
re-displays, that no value appears on the top line for the reference current (e.g., N/A):
ConvX LNA Ref = N/A
Calibrate: No Yes (◄ ► E)
Front Panel Operation
MBT-5000A L-Band Up/Down Converter System
5–24
Revision 1
MN-MBT-5000A
Advertisement
Table of Contents
