Nautel NX5 AM, Operation & Maintenance Manual

Page: 163 / 220

NX5 OPERATION & MAINTENANCE MANUAL OPERATING THE TRANSMITTER
VERSION 0.1 2015-08-01 PAGE 3.2.143
Power Lockout Settings
NOTE
: You can also adjust the power lockout settings using the remote AUI (see Power Lockout, on page
3.2.132 ).
The
Power Lockout
menu (see Figure 3.2.127 on page 3.2.143 ) allows you to set a high power limit for
the transmitter. There is provision to set up to eight different limits (which can be used to accommodate
daytime/night-time patterns or different antennae), but only the selected limit is active. You can also
select a high power limit using a digital remote input (see
Remote Inputs - Remote AUI on page 3.2.164 ).
The transmitter power cannot increase beyond the active limit. For analog and hybrid modes of
operation the displayed power limits represent carrier power. For DRM mode, the displayed power limits
represent RMS power. If the active preset set point is greater than the active lockout limit, a
High
Power Lockout
alarm will appear on the
Transmitter Status
page.
Figure 3.2.127: Power Lockout Menu
Use the up and down buttons to move the cursor to the desired line item and then press the right
button to enable editing.
Figure 3.2.128 shows the two editing screens for the
Power Lockout
menu.
Within either of the editing screens, use the up and down buttons to edit the setting. Press the accept
(checkmark) button to save the change. Press cancel (
X
) to discard changes and return to the previous
menu.
Figure 3.2.128: Power Lockout Editing Screens
Select the active power lockout (1 through 8). Press the
cancel (
X
) button to discard changes and return to the
previous menu.
For the selected active power lockout, select the high power
limit for the transmitter between 0 and 11 kW, in 0.01 kW
increments). Press the cancel (
X ) button to discard changes
and return to the previous menu.