Nautel NX5 AM, Operation & Maintenance Manual

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NX5 OPERATION & MAINTENANCE MANUAL OPERATING THE TRANSMITTER
PAGE 3.2.162 VERSION 0.1 2015-08-01
Adjusting PDM Settings - Using the Front Panel UI
The front panel UI’s
PDM Settings
menu (see Figure 3.2.148 ) displays the selected PDM settings. The
settings are based on the PDM configuration of the transmitter and are set at the factory during product
testing.
PDM phase calibration may be required after replacing or moving RF power modules. See the
“Replacing a Power Module” section of the
NX5 Troubleshooting Manual
for more information
.
Figure 3.2.148: Factory Settings - PDM Settings Menu
Use the up and down buttons to move the cursor to the desired item and then press the right button to
enable editing.
Figure 3.2.149 shows the two editing screens for the
PDM Settings
menu.
Within the PDM Offset screen, 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.
Within the Minimization screen, press the accept (checkmark) button to begin the minimization routine.
Perform this routine after any PDM offset changes.
Figure 3.2.149: PDM Settings Editing Screens
WARNING! Attempting to begin the minimization routine will display a screen
prompting you to confirm the selection.
Set the PDM phase offset between -1 and 1, in 0.001 degree
increments. Press the cancel (
X ) button to discard changes
and return to the previous menu.
Press the accept (checkmark) button to begin the minimiza-
tion routine. Press the cancel (
X ) button to return to the pre-
vious menu.