Comtech EF Data MBT-5000 - Manual (Page 76)

MBT-5000 L-Band Up/Down Converter System MN-MBT5000
Front Panel Operation Revision 4
5–20
5.2.5.4.2 Firmware Images: Select
Current Active Image: #1
Next Reboot Image: #1 #2
The top line shows the Current Active Image. From the bottom line, use the ◄ ► arrow keys to
select the Next Reboot Image (i.e., the image that will be active the next time you reboot the
unit) as #1 or #2. Press ENTER when done..
5.2.5.5 UTILITY: LNA
LNA: ConvA ConvB
When the MBT-5000 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.