Nautel NX3, Installation Manual

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NX5/NX3 INSTALLATION MANUAL COMMISSIONING TASKS
VERSION 3.1 2021-04-22 PAGE 2.8.7
15. Set the time and date using the Main Menu -> User Settings -> Set Clock screen.
16. Using a web browser go to ftp://www3.nautel.com/NX_Series/ to make sure your software version
is the latest available. Check the existing software version using the remote AUI’s System
Settings -> Upgrade Software page. If necessary, update your software. See the “Standard
Maintenance” section of the NX5/NX3 Operations & Maintenance Manual for detailed
information.
17. To improve overall system security, change the login password for the AUI display. Nautel factory
sets the AUI with a default login password (see “Changing the Password” on page 3.2.125 of the
NX5/NX3 Operations and Maintenance Manual).
18. If you wish to participate in the Nautel Phone Home feature, which allows Nautel support
personnel to monitor, analyze and proactively troubleshoot your transmitter, use the remote AUI to
enable the use of Phone Home. See the “Operating the Transmitter” section of the NX5/NX3
Operations & Maintenance Manual for detailed information.
19. If you purchased the Exgine option (i.e., an Exgine PWB is installed on the exciter panel), use the
front panel UI or the AUI to configure your Exgine parameters. See the “Configuring Exgine
Settings” on page 3.2.97 of the NX5/NX3 Operations & Maintenance Manual for detailed
information.
20. If you purchased the GPS Sync PWB option (i.e., a GPS Sync PWB is installed on the exciter panel),
use the AUI to set the synchronization source to “GPS Sync Card”. See the “Exciter Clock
Calibration” on page 3.2.130 of the NX5/NX3 Operations & Maintenance Manual for detailed
information.
21. Use the front panel UI or remote AUI to configure your desired remote inputs and outputs. See the
“Operating the Transmitter” section of the NX5/NX3 Operations & Maintenance Manual for
detailed information.
Modulation Checks
Verify that the RF output is appropriately modulated when audio is applied:
1. Connect an appropriate modulation monitor to the control/interface PWB’s RF MONITOR BNC
connector (J1). The RF monitor level is factory set for 5 V rms. Ensure there is sufficient attenuation
installed between the
RF MONITOR connector and the modulation monitor.
2. From the front panel UI’s Main Menu -> Select Presets menu, select the desired preset and verify
the AM Source is set for your audio signal generator.
3. Verify that an audio signal generator is connected to J7 (AES1) or J9 (balanced analog) on the
control/interface PWB, and that its output is preset to 1000 Hz at a zero output level (turned off).