TM 11-5840-281-12-1
1-11.
EQUIPMENT DATA. (CONT)
ELEVATION ANTENNA
Beamwidth (between half-power points)
Vertical
Apparent beamwidth 1.1 degree max (0.37
apparent) optimized increased angular
resolution (iar)
Horizontal
3.4 degrees max
Gain
35 db min
Vertical or circular
Precision scan coverage
Scan -1 degree to + 10 degrees or -1 degree
Horizontal servo
to 35 degrees
15 degrees (O degree to 15 degrees
left, 0 degree to 15 degrees right)
Vertical height
8 ft (240 cm)
Horizontal width
2 ft (60 cm)
AZIMUTH ANTENNA
Beamwidth (between half-power points)
Vertical
3.5 degrees max csc2 to 30 degrees
Horizontal
1.2 degrees max
Gain
36.5 db
Horizontal or circular
Scan coverage
30 degrees or 60 degrees (precision) and
360 degrees (search)
Tilt (vertical servo) from horizontal
- 1 degree to + 25 degrees
Vertical height
4 ft (120 cm)
Horizontal width
6.5 ft (193 cm)
Operating frequency
X-band (9 to 9.6 GHz)
Pulse width
0.2 or 0.8 s
Pulse repetition frequency (prf)
1200 pps (pulse per second)
Peak power output
200 kw nominal
RECEIVER (DUAL CONVERSION)
Minimum discernible signal (mds)
Wide pulse 107 db min
Narrow pulse 101 db min
Receiver if bandwidth
Wide pulse, 2 0.05 MHz
Narrow pulse, 5 + 1 MHz
Receiver ftc (lin or log)
Wide pulse, 0.8 s
Narrow pulse, 0.2 s
Receiver stc
ON or OFF operation selected by operator
Receiver tuning
Local oscillator tuning from control-
indicator and receiver front panel
Noise figure
6.6 db max
Preamp/converter
Conversion gain
30 db max
12 MHz
Center frequency
290 + 2 MHz
Noise figure
2.8db
Dynamic range
36 db max
Output if frequency
60 + 0.5 MHz
Log if amplifier
Small signal gain
70 db min
Bandwidth (3 db)
7 + 1 MHz
Center frequency
60 +0.5 MHz
1-9
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