DUAL TELEVISION SCAN
CONVERTER (DUAL TVSC)
The dual television scan converter (dual TVSC)
mixes radar sweep and video with graphics video to
provide the DCC with aradar and tactical symbol
display. The dual TVSC is housed in a single
standard AN/UYQ-21(V) electronics drawer. Each
dual TVSC is capable of driving two DCCs and
there are two-dual TVSCs per six-drawer electronics
cabinets. Additional cabinets are added as dictated
by system requirements.
The dual TVSC receives radar sweep and video
data directly from the SDDS. The radar azimuth,
range, and video data is processed by the dual
TVSC into a high resolution composite video signal.
Composite video from the C-DITEG is received by
the dual TVSC, synchronized, and merged with the
radar video to produce a single high resolution raster
scan output for display on the DCC.
TACTICAL DITEG MODULE (TDM)
The tactical DITEG module (TDM) contains the
features of the TVSC and C-DITEG and is designed
to drive one OJ-535(V)/UYQ-21(V) display control
console, one TV monitor, and one hard-copy
The DITEG module of the TDM receives data
from the system computer and processes the symbol
data into a high resolution composite video signal
that is sent to the TVSC function. Tabular, or text
data, is processed into a low resolution composite
video signal for display on the TV monitor. The
DITEG module also contains the circuitry required
to drive a hard-copy printer-plotter.
The TVSC module of the TDM receives radar
video, azimuth, and range data from the SDDS and
tactical composite video data from the DITEG
module. The TVSC converts the radar data into a
raster scan composite video signal, merges it with
the tactical composite video, and sends it to the
DCC for display.
CENTRAL AUTOMATED STATUS
BOARD GENERATOR (CAG)
The central automated status board generator
(CAG) converts computer-supplied alphanumeric
data into a low-resolution (525 line) composite
video signal for display on a standard TV monitor.
The CAG can simultaneously drive 16 monitors.
The data displayed on the automated status board
(ASTAB) monitors is selectable from a display
console or a remote keypad mounted near the
The CAG can also accept video inputs from a
maximum of eight TV cameras.
generates the horizontal and vertical synchronizing
signal or composite video signals needed to control
the external cameras.
SUMMARY-COMPUTER DISPLAY SET
This chapter has presented material on the
Computer Display Set AN/UYQ-21(V).
following information summarizes important points
you should have learned.
C E N T R A L E Q U I P M E N T G R O U P
(CEG) The CEG contains the central data buffer
(CDB), sensor converter group, and the sensor data
distribution switchboard (SDDS). These equipments
interface the tactical- display consoles with the
computer and ships sensors.
CENTRAL DATA BUFFER (CDB) The CDB
converts parallel data from the computer to serial
data, and distributes the data to the TDS display
console. The CDB receives serial data from the
consoles, converts the data to parallel, and sends it
to the system computer.
SENSOR CONVERTER GROUPThe sensor
converter group is the main interface between the
ships sensors and the display consoles. Common
converters are the synchro radar azimuth converter
(SRAC) and the digital radar azimuth converter
(DRAC). These converters generate the signals
required to display sweep and range marks on the
S E N S O R D A T A D I S T R I B U T I O N
SWITCHBOARD (SDDS) The SDDS consists of
two drawers in the CDB, the sweep drawer and the
video switching drawer.
The SDDS can route
sensor data from 12 sensors to 20 display consoles.