Nautel XR6, Operation And Maintenance Manual

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XR6/XR3 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 XR6/XR3 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.
•
RF Current Shutback
: Sets the reference voltage for the high RF current shutback circuitry.
•
DC Current zero offset
: Sets the value of the dc offset used to zero the transmitter’s RF cur-
rent probe.
•
Carrier Ramp-Up Interval:
Sets the interval (in tenths of seconds) for the transmitter to
ramp up to its maximum carrier reference value after being turned on. If the transmitter is
ramping up to a power level that is less than the maximum carrier reference, the ramp up
time will be less than the interval setting.
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 B+1 PM:A 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 B+1 PM:A 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