Nautel XR12, Operation And Maintenance Manual

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XR12 Operations and Maintenance Manual Operating the transmitter
Page 2-22 Issue 3.1 2013-03-14
Setting thresholds
If required, you can use the Set Thresholds page - see Figure 2.17 to adjust the thresholds used to
control and protect the XR12 transmitter.
To view the
Set Thresholds
page, select
Settings
from the Main Menu ,
Hardware Settings
from
the General Settings menu ,
Calibration Settings
from the Hardware Settings menu , then
Set
Thresholds
from the Calibration Settings menu.
Figure 2.17: Set Thresholds page
Use the
Up
and
Down
buttons to select the desired threshold.
•
Reflected Power Shutback
: Sets the reference voltage for the high reflected power shutback
circuitry.
•
Low B+ Voltage
: Sets the reference voltage for the low B+ detection circuitry.
•
RF Current Shutback
: Sets the reference voltage for the high RF current shutback circuitry.
•
Maximum Carrier Reference
: Limits the maximum allowable carrier reference signal.
•
Minimum Carrier Reference
: Limits the minimum allowable carrier reference signal.
•
B+ Reconnect Level
: Sets the reference voltage for the reconnect detection circuitry.
•
DC Current zero offset
: Sets the value of the dc offset used to zero the transmitter’s RF cur-
rent probe.
WARNING: These settings are adjusted at the factory and should not
require any adjustment. These settings affect critical system
protections. Making changes to these settings may void your
warranty. Contact NAUTEL before making changes.
10:18 0.00kW M-1 PM:AB Man Ex:A Man
Set Thresholds
Reflected Power Shutback: 85
(Approximate value): 1063 W )
Use the arrow keys to select a value to
change. Press EDIT to make changes.
View Summary Edit Back
10:18 0.00kW M-1 PM:AB Man Ex:A Man
Set Thresholds
Reflected Power Shutback: 85
(Approximate value): 1063 W )
Use the arrow keys to select a value to
change. Press EDIT to make changes.
View Summary Edit Back