User's Manual

3300-Watt VHF Low Band Transmitter Chapter 3, Installation and Setup Procedures
335B, Rev. 0 3-5
Figure 3-2. Chassis Trak Cabinet Slides
Open the rear door and inspect the
interior of the cabinet for packing
materials and carefully remove any that
are found. Slowly slide each tray in and
out to verify that they do not rub against
each other and have no restrictions to
free movement. It may be necessary to
adjust the position of the trays to keep
them from rubbing. This is accomplished
by loosening the cabinet slide mounting
bolts that hold the front of the slide to
the mounting frame of the cabinet and
moving the tray up or down, as needed,
to correct for the rubbing.
3.3 Installing the Cabinet and Trays
The air intake to the 3300-watt
transmitter is only intended for room air.
The cabinet should be positioned for
adequate air intake and exhaust, the
opening of the rear door, if present;
access to the trays, including sliding
them out for testing, the main AC
hookup, and the installation of the output
transmission line. The cabinet should be
grounded using copper strapping
material and should be permanently
mounted to the floor of the site using the
holes in the bottom of the cabinet.
Once the cabinet is in place, and the
trays are checked for damage, the main
AC hookup can be made.
Caution: Before connecting the 220
VAC, make certain that the circuit
breaker associated with the
transmitter has been switched off.
The main AC input circuit to the 3300-
watt transmitter should be a 50-amp,
220-VAC line, inside of a 1-1/4-inch
conduit. The three wire 220 VAC input is
connected to the AC distribution block,
white to white, black to black and green
to green by stripping the ends of the
wires, approximately ½”, and placing
them into the proper hole and tightening
the retaining screws that holds them in
place. NOTE: The 220VAC should be
connected by a qualified electrician.
The AC is distributed to the trays through
AC plugs that connect from the power
distribution block to the rear of each tray.
The output of the (A16) coupler assembly
at (A16-J2), which is a 1-5/8” connector
and the RF output for the transmitter,
should connect to the transmission line
for the antenna system.