Nautel XR3-PREINST, Руководство по предварительной установке

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XR6/XR3 Pre-installation Manual Pre-installation assistance
Page 11-2 Issue 3.0 2009-07-15
• 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 coax-
ial 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
Ω
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.