Nautel NX50, Installation Manual

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NX50 Installation Manual Pre-installation / Installation assistance
Page 11-2 Issue 6.1 2021-07-13
• Ac power wiring for the transmitter has been installed and connected at the breaker
panel or the building’s service entrance. If local electrical codes allow Nautel personnel
to connect the transmitter to the ac supply, using the customer's cable, that task is
included in this service. Otherwise, the customer must ensure that an approved
electrician is present for this task.
• The customer has prepared the RF coaxial cable – used to connect the transmitter to
the antenna – and installed the required connector. The customer has also installed the
RF coaxial cable in place and connected it to the antenna, while leaving the transmitter
end of the cable unconnected.
• Where required, all remote control and monitoring cables have been installed and
connected to the station equipment (e.g., modulation monitor, frequency monitor, and
power meter).
• The site has been made ready for the equipment, and adequate protection against
lightning and lightning-induced transients has been provided.
• The transmitter has been unpacked, closely checked for any damage caused by
shipping, and then assembled.
• The following test equipment has been made available at the site:
– Two-channel oscilloscope (with probes)
– Audio signal generator
– Distortion analyzer
– Spectrum analyzer
– Modulation monitor
– Frequency counter
– 50

test load (rated for 150% of carrier power, VSWR less than 1.1:1)
Nautel’s service representative takes full responsibility for commissioning the transmitter,
validating all external interfaces (i.e., the ac supply, RF output, remote control and monitoring
equipment) and checking out the equipment prior to activation. The service representative
turns on the transmitter, performs all adjustments and set-up procedures, and carries out proof
of performance tests at the site. These tests ensure that the transmitter is operating normally in
compliance with its specifications. The service representative also provides a demonstration
and a short explanation of the operation of the transmitter. Finally, the customer signs an
Acceptance of Installation Certificate that provides feedback to Nautel regarding the
commissioning service.