TM 11-5840-360-14-1-1
mounted closer than 3 feet if they are separated by a
3. Sufficient clearance should be allowed for
steel bulkhead.
access to the radar units for inspection and servicing.
For the slotted waveguide array, allow a minimum
2. The indicator shall be installed at least 3 feet
turning circle diameter of 7 feet for the 6-foot array, 10
away from the magnetic compass to avoid mutually
feet for the 9-foot array, and 13 feet for the 12-foot
adverse magnetic interaction.
array.
3. The indicator is drip-proof only, and must not be
4. The pedestal must be mounted so that the array
exposed to the weather.
rotates in a plane parallel to the ship's water line. The
4. To maximize simplicity of operation, the
pedestal should face forward (5 .
)
indicator shall be mounted with the heading line.,
5. The waveguide run shield ' be kept as short as
pointing to the bow.
possible, in an almost straight, line to the receiver
5. Sufficient clearance shall be provided to allow
transmitter unit.
for servicing and ventilation.
6. If the antenna is supported on a stub mast, the
mast must be located where it can be properly braced or
2.2.2.5 Switching Units (V2, V3, V4). - The location of
guyed to minimize vibration.
the switching unit(s) will depend on the system
configuration (dual-partial, dual, or dual-special) and the
7. If the antenna is mounted at an unsafe working
location of the equipment to which the unit will be
height, a service platform and guard rail must be
connected. The unit should be located in the area of the
included in the installation.
prime indicator to facilitate system mode selection.
2.2.2.2 Receiver Transmitters. - The main consideration
2.2.2.6 Wave Guide Switch (V2). - The wave guide
in planning the location of the receiver transmitter is its
switch is installed in the waveguide between the two
position relative to that of the antenna. The receiver
receiver transmitters with a single waveguide run to the
transmitter shall be installed according to the following
antenna pedestal. The wave guide switch should not be
guidelines:
more than 15 feet from either receiver transmitter.
1. The receiver transmitter shall be installed at
least 3 feet away from the indicator. The units may be
2.2.3 Equipments To Be Installed Per System
mounted closer than 3 feet if they are separated by a
The equipments to be installed for each system
steel bulkhead.
are listed in Table 2-1. The table also references the
2. The receiver transmitter shall be installed at
applicable paragraph for each installation procedure.
least 6 feet away from the magnetic compass.
3. The receiver transmitter is drip-proof only, and
2.2.4 System Power Requirements
must not be exposed to the weather.
The individual equipment power requirements
4. Sufficient clearance shall be provided to allow
for each system are given in Table 2-2.
for servicing and ventilation.
2.2.5 System Interconnections
5. The waveguide run to the antenna shall be kept
as direct as possible, with a minimum of elbows and
bends.
cables required for each equipment and system.
6. A rust-free cover should be installed around the
2.2.5.1 AN/SPS-64(V) 1 Interconnections. - The
waveguide where necessary for protection against
interconnections required between Radar Set AN/SPS64
physical damage. A minimum clearance of one inch
(V) 1 equipment and related ship's equipment are shown
shall be provided between waveguide and cover.
in Figure 2-1.
2.2.3 Video Amplifiers (V2, V3, V4). The video amplifier
2.2.5.2 AN/SPS-64 (V)2 Interconnections. - The
units should be located near the receiver transmitter to
interconnections required between Radar Set
provide convenient access for maintenance. Sufficient
AN/SPS64(V) 2 equipment and related ship's equipment
clearance must be provided for maintenance and
are shown in Figure 2-2.
ventilation.
2.2.5.3 AN/SPS-64 (V)3 Interconnections. The
2.2.2.4 Indicators. - The indicator shall be installed in
interconnections required between Radar Set
the wheelhouse such that the display is viewed looking
AN/SPS64(V)3 equipment and related ship's equipment
forward. The following guidelines shall be observed
are shown in Figure 2-3.
whenever possible:
1. The indicator shall be installed at least 3 feet
away from the receiver transmitter. The units may be
2-3
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