TM 11-5840-281-35/1
Control settings
Step No.
Test equipment
Equipment under test
Test procedure
Performance standard
c. Rotate ANGLE VOLTS con-
c. 55 max, 45 min.
trol slowly ew until range
marks on artificial elevation
sweep just disappear. Observe
setting of ANGLE VOLTS
control dial.
d. Continue rotating ANGLE
d. 95 max, 85 min.
VOLTS control cw until range
marks just reappear on arti-
ficial elevation sweep. Observe
setting of ANGLE VOLTS
control dial.
3
...............................As last indicated, except:
a. On Pulse Generator 0-1333/
a. Artificial azimuth sweep
Pulse Generator
TPN-18 under test, rotate
at bottom of normal
O-S133/TPN-1 8
ANGLE VOLTS control fully
azimuth scan and range
under test
ccw. Observe position of artifi-
marks are present.
cial azimuth sweep and marks.
ANGLE VOLTS switch:
b. Rotate ANGLE VOLTS con-
AZ
b. 138 max, 132 min.
trol slowly cw until range
marks on artificial azimuth
sweep just disappear. Observe
setting of ANGLE VOLTS
control dial.
c. Continue rotating ANGLE
c. 168 max, 162 min.
VOLTS control cw until range
marks just reappear on arti-
ficial azimuth sweep. Observe
setting of ANGLE VOLTS
control dial.
4
...............................As last indicated, except:
a. On master Control-Indicator
a. None.
Master Pulse Generator
C-6988/TPN-18, place
O-iSs3/TPN-18
ANTE14NA-(servo) switch to
SCAN MODE: 35 EL
U or D as required to position
azimuth Antenna AS-1292/
TPN-8 to tilt angle of 20 deg
as indicated on clinometer.
b. On Control-Indicator C-6988/
b. 20 deg.
TPN-18 under test, observe
indication on AZ TILT meter.
5
...............................As last indicated, except:
a. On Pulse Generator 0-1333/
a. None.
Pulse Generator
TPN-18 under test, set ANGLE
0-153/ TPN-1 8
VOLTS control to 400.
under test
b. Momentarily place ANGLE
b. Artificial sweep approx-
ANGLE VOLTS switch:
VOLTS switch to EL and back
mately in middle of
OPERATE
to OPERATE. Observe position
blanked range mark
Master Pulse Generator
of artificial sweep with respect
area.
O-is33/TPN-18
to blanked sector of range
marks on 35-deg elevation scan.
SCAN: ON
Radar Receiver-
Transmitter RT-818/
TPN-18 control panel
SCAN: ON
a. On master Control-Indicator
6
...............................As last indicated, except:
a. Blanked range mark
C-6988; TPN-18, place
Master Pulse Generator
sector moves smoothly
ANTENNA (servo) switch to
O-13s3/TPN-18
through elevation scan.
D until blanked range mark
SCAN MODE: NORM
sector is at bottom of elevation
scan, then to U until blanked
range mark sector is at top of
elevation scan. Observe blanked
range mark sector moving
4-60
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