Terrasat IBUC 2, Operation Manual

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B-14
|
Cyber Hardened IBUC
2
, IBUC
2e
, IBUC
2 G
, IBUC
R
, IBUC
G
Operations Manual: Embedded Web Pages
Engineered to Endure
•
Continuous
In continuous mode, the input signal continues without interruption.
• Burst Timeout
Sets the longest allowable time between valid data bursts before the IBUC reports
an alarm. This command applies when the IBUC is set to burst power monitoring.
The set value must be between 0 and 300 seconds. 0 is the default value (No
Timeout).
• Burst Threshold
Sets the burst threshold for the IBUC. This value determines the level at which a
burst is considered valid. The threshold is for the output power level; the threshold
for input power is configured internally.
The value must be between rated power and no less than 2 dB below rated power.
Default values are listed in Table B.2 .
• Gain Mode
Options include:
•
Open: no feedback in the measuring loop.
Keep in mind the open-loop gain is affected by temperature and frequency;
however, the temperature compensation feature is still active when the unit
operates with open-loop gain. Open is the default setting.
•
Automatic Gain Control (AGC)
•
Automatic Level Control (ALC)
Note:
The user should not switch directly from AGC/ALC to ALC/ACG. This action
may cause errors. Instead the user should first change from AGC/ALC to Open
Loop gain and then change to ALC/AGC. After Switch from the ALC/AGC Gain
Mode to Open Loop Mode, the user must reset the Gain Control.
Table B.2
Default Values for Burst Threshold
Power Level Default Value Power Level Default Value
004 16.0 050 27.0
005 17.0 060 28.0
008 19.0 080 29.0
010 20.0 100 30.0
012 21.0 125 31.0
016 22.0 150 32.0
020 23.0 175 32.4
025 24.0 200 33.0
030 25.0 300 35.0
040 26.0 400 36.0