TM 43-6625-916-12
RADAR TEST SET
0002 00
EQUIPMENT DESCRIPTION AND DATA - Continued
Method
Average frequency between 90% points
Within 5 MHz of nominal for specified accuracy of amplitude and
Frequency range
frequency measurements
Pulse Spacing
25 ns measured between leading edges for pulses with rise times
≤100ns
25 ns for pulses with rise times of 50 to 100ns, fall times of 50 to
Pulse Width
200ns
Receiver Bandwidth
>10 MHz at 3dB points
Oscillator Leakage:
-50 dBm maximum at antenna connection
Image Rejection:
>40 dBc
COMSEC Interface
Connector
Accessory interface cable or adapter provides the required interface
connector
Compatibility
KIT-1C, KIR-1C, KIT-1A or KIR-1A with appropriate cable or adapter
Video Outputs
Enable Trigger, Challenge Video, Pretrigger, Reply Video
High State
2.5 volts minimum into 90 ohm, 5 volts maximum (high impedance)
Low State
0.3 volts maximum at -1ma
Output Impedance
60 ohms nominal
Video Inputs
Disparity, Reply Video, Challenge Video, Time Decoded Video
High State
2.0 volts minimum, 5.5 volts maximum
Low State
0.5 volts maximum
Input Impedance
1k ohm nominal
Signaling Outputs
Code A/B, Verify Bit 1, Code Hold
High State
3.0 Volts minimum with 5 mA load to ground may be pulled up to >5
Volts if current is limited to 20 mA as the output is clamped at > 5
Volts
Low State
0.3 Volt maximum when sinking <100 mA
Signaling Inputs
TX Alarm, INT Alarm
High State
2.0 volts minimum
Low State
0.5 volts maximum at -1 mA
Input Impedance
.7k ohm to +5 volts nominal
Power for COMSEC
KIT-1A / KIR-1A
External 115 v ac provided through KIT/KIR-1A interface
cable (JPN: 55-1045-16) (not part of COEI)
KIT-1C / KIR-1C
22 to 29 Vdc at 3 watts max. (provided by the TS-4530 unit)
KIV-6
15 +/- 0.75 Vdc at 200 mA max. (provided by the TS-4530 unit) (not
part of COEI)
Code Retention
An attached COMSEC will retain code during standby and off
conditions. The Mode 4 interrogation patterns stored in the TS-4530
can be manually zeroized. An attached COMSEC computer can be
manually zeroized from its front panel. Twelve samples of Mode 4
interrogation pattern + response obtained from the interrogator
computer are stored for code A, B, A verify, and B verify.
Test Parameters
Correct reply code
Indicates reply code
Correct pulse timing
Displays pulse spacing error or pulse width error
No or low replies
Indicates % reply
Receiver sensitivity (XPDR)
Displays MTL in dBm if direct connect, effective received MTL in
dBm with antenna.
Receiver Sensitivity (INTR): MDL Test allows selecting target reply level from 0 to -12 dB in 1 dB
steps relative to nominal target level.
Transmitter power
Displays power in dBm if direct connect, effective radiated power in
dBm with antenna
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