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Target Corporation's model CIBS-2 Integrated Beacon System is a compact, lightweight, completely modular I FIF system incorporating an Interrogator, Defruiter, Decoder and ISILS Switch Driver. Builtin design features allow the CIBS-2 to be easily expanded to provide an optional two-channel active decode capability enabling digital display of SIF codes and altitude (Mode C) on a local or remote target data indicator.
Although designed specifically for use with fire control radars and for surveillance applications on small patrol craft and gun boats, as well as aircraft and tanks, the CIBS-2 can be used in any location where the antenna system is in close proximity to the PPI display. As such the CIBS-2 can function as the nucleus of an expandable surveillance and Air Traffic Control (ATC) system providing defruited reply and triggers to decoder groups (such as Target Corporation's OX-5001/UPX) or processed data to expander units (such as Target Corporation's CDE-59) located at individual display consoles. In addition, processed data in parallel format is available for use by automatic or computerized decoding and tracking systems. The unit is compatible with the Mode 4 aspects of the I FIF Mark XII (SIF) System and is designed to allow future expansion to provide Mode B and D capability.
The Interrogator, Defruiter and Decoder subsystems are similar in design to previously developed subsystems produced in high volume quantities. These subsystems are currently in the inventories of government agencies throughout the world. Consequently, logistics and provisioning is minimized.
The CIBS-2 Interrogator subsystem utilizes the major circuit modules and most printed circuit cards from Target Corporation developed interrogators, AN/UPX-502 and AN/UPX-27. The only change is the physical location of the modules in the new chassis and changes in their mounting.
The CIBS-2 Interference Blanker (Defruiter) subsystem uses circuitry similar to that found in Target Corporation's CIB-3 and MX-5183/UPX Defruiters now in wide use internationally. This circuitry employs metal -ox ide-si I icone (MOS), integrated-circuit static shift registers as the memory elements and provides pulse-to-pulse defruiting, automatic noise thresholding, pulse width descrimination and video recirculation.
The Video Decoder subsystem has been designed to provide completely digital decoding and uses an 11 MHz system clock to provide reliable video processing. Building upon the best features of Target Corporation's CVD-5 and CVD-6 (KY5035/UPX) Video Decoders, supplied to several NATO countries and Canada, the design provides optimum processing power while keeping size and power dissipation to a minimum. Bracket decoding, as well as selective identification by passive decoding of all codes in Modes 1, 2 and 3/A is inherent in the system design. As previously mentioned, plug-in expansion capability, to include modes B and D with any interlace pattern on each of two separate channels is also provided. Communication failure (7600 emergency), civil emergency (7700 emergency), military emergency (4X), and user-definable emergency (such as 7500 HI-JACK) replies are automatically decoded, counted and displayed on the PPI with unique symbol designations. Audible and visual alarms are also provided.
The CIBS-2 also contains a built-in, selftest code generator for testing the defruiter and all passive, emergency, and active decoding features. An optional RF self-test generator is available for rapid, on-line verification of the Interrogator receiver operation. The unit is designed, to be left or right side mounted to the radar indicator or adjacent bulkhead or on a shelf adjacent to the operator. The front panel is illuminated for operation in the characteristically dark environment. The active decoding feature utilizes azimuth and range data from the PPI display but may be modified for use with a hand held light pen.
Maximum utilization of micro circuitry (integrated circuits) and solid state components is employed in the Target Corporation design. The only deviation to this concept is the use of two vacuum tubes in the transmitter output stage of the Interrogator. However, a completely solid state transmitter is available as an option. An extremely modular approach was taken for the rf modules, printed circuit cards and power supply, to facilitate ease of maintenance and provide extremely high system availability.
SPECIFICATIONS
Physical Characteristics
Weight: 65 pounds
Volume: 1.2 cubic feet
Equipment Configuration: Self contained in 7.5 x 16.75 x 22 inch
chassis
Operating Temperature: -300C to +65°C
Humidity: 0 to 95 Percent
Electrical Requirements
Primary Power: 115/220 VAC 10, 47 to 440 Hz 350 Volt-Amperes
Radar Trigger: 5 to 150 Volts (Internal PRF Limiting)
Electrical Performance
RIF Power Out: Adjustable over a 12 dB range up to 2000 watts
@ 1 % duty cycle
Receiver Sensitivity: -87 dBm (Tangential)
Defruiter Type: Pulse to pulse
Defruiter Range: 200 nautical miles adjustable in 20 nautical
mile increments
Mode Interlace: Full capability modes 1, 2, 3/A and C (expandable
to B, D, 4)
Decoder Type: All digital (1 1 MHz clock)
Passive Decoding: Full mode/4096 code capability for passive decoding
on two channels
Video Outputs: Two +2.0 to +4.0 V (adjustable) for PPI
ISLS Switch Driver: 0 to +70 V or -80 to +20 V (selectable)
Composite Video Output: 0 to +6.0 V (adjustable) for external
decoder
Options
Active decoding (via light pen activation or active area gate)
Built in RF test module for checkout of receiver
Expansion (via CDE-59) for additional passive decoding channels
in groups of 3
Solid State Transmitter
