UHF Analog Driver/Transmitter/
Chapter 3, Site Considerations,
Translator
Installation and Setup Procedures
LX Series, Rev. 3
3-5
3.2 Unpacking the Chassis
w/modules, bandpass and trap
filters
Thoroughly inspect the cabinet, if
purchased, chassis with modules and all
other materials upon their arrival.
Axcera certifies that upon leaving our
facility the equipment was undamaged
and in proper working order. The
shipping containers should be inspected
for obvious damage that indicates rough
handling. Remove the cabinet, if
purchased, chassis and modules, along
with bandpass filter and trap Filter, from
the crates and boxes. Check for dents
and scratches or broken connectors,
switches, display, or connectors. Any
claims against in-transit damage should
be directed to the carrier. Inform Axcera
as to the extent of any damage as soon
as possible.
The modules are mounted to the chassis
assembly with slides that are on the top
and the bottom of the modules. There
are two thumb screws on the front panel
that hold each of the modules in place.
NOTE:
Typically the transmitter is
shipped installed into a cabinet and the
following sections may be skipped.
3.3 Installing the Chassis w/modules
and filters
The chassis assembly is made to mount
in a standard 19” rack. The chassis
assembly mounts using the four #10
clearance mounting holes on the ends.
The chassis should be positioned; to
provide adequate air intake into the front
and the air exhaust of the fan(s) in the
rear; the ability to slide the modules out
for replacement purposes; the
installation of the bandpass filter and trap
filter; the coupler assembly; and output
transmission line. The chassis or cabinet
in which it is mounted should be
grounded using copper strapping
material.
NOTE:
To remove the driver/power
amplifier module, mounted in the
exciter/driver assembly, the input and
output cables must be removed from the
rear of the module and also a 6/32” x ½”
Philips screw, mounted between the two
connectors, needs to be removed before
the module will pull out. After removal of
the screw, which is used to hold the
module in place during shipping, it does
not need to be replaced. (See Figure 3-2)
NOTE:
To remove the Combiner Module,
found in the power amplifier assembly in
high power transmitters, the output cable
must be removed from the rear of the
module and also two 8/32” x ½” Philips
screws, mounted above the connector,
need to be removed before the module
will pull out. After removal of the screws,
which are used to hold the module in
place during shipping, they do not need
to be replaced.
Figure 3-2. Front and Rear View Reconnection Drawing
Shipping Screw
