TM 11-5840-281-35/1
Control settings
Step No.
Test equipment
Equipment under test
Test procedure
Performance standard
c.
c.
Observe elevation Antenna AS-
Elevation Antenna AS-
1291/TPN-8.
1291/TPN-8 scans at 30
cpm.
d.
d.
Observe precision display on
Normal beta sweeps on
both Control-Indicators C-
both Control-Indicators
7
--------------------------- An last indicated,
6988/TPN-18.
C-6988/TPN-18 with no
except:
flashing.
Master Pulse Generator
a.
a.
Observe azimuth Antenna AS-
Azimuth Antenna AS-
0-1333/TPN-18
1292/TPN-8.
1292/TPN-8 scans sector
SCAN MODE: 60 AZ
approximately from 20
deg cw from 0 deg (O deg
as indicated on azimuth
scan protractor) to 50
deg ccw from 0 deg.
b.
b.
Time rate of azimuth Antenna
15 cpm.
AS-1292/TPN-8 scan.
c.
c.
Observe 10-35 deg actuator ---
Red connecting rod is at
bottom of 10-35 deg.
actuator slide.
d.
d.
Time rate of elevation Antenna
15 cpm.
AS1291/TPN-8 scan.
e.
e.
Observe precision display on
Normal beta sweeps on
both Control-Indicators C-
both Control-Indicators
6988/TPN-18.
C-6988/TPN-18 with no
flashing.
a.
a.
Observe 10-35 deg actuator.---
Red connecting rod is at
8
--------------------------- As last indicated,
bottom of 10-35 deg
except:
actuator slide.
Master Pulse Generator
b.
b.
Time rate elevation Antenna
30 cpm.
0-1333/TPN-18
AS-1291/TPN-8 scan.
SCAN MODE: SIMULT
c.
c.
Observe azimuth Antenna AS-
Rotates 360 deg.
1292/TPN-8.
d.
d.
Time rate of azimuth Antenna
16 rpm.
AS-1292/TPN-8 scan.
e.
Master Control-Indicator
e.
Observe displays on both
C-6988/TPN-18 has beta
Control-Indicators C-6988/
sweeps. Slave Control-
TPN-18.
Indicator C-6988/TPN-
18 has ppi sweeps.
f.
Consecutive blanked
f.
Observe consecutive positions
sectors on ppi sweep do
of blanked sectors in ppi sweep
not overlap each other.
on slave Control-Indicator C-
6988/TPN-18.
a.
Azimuth Antenna AS-
a.
If Radar Set AN/TPN-18 is
1292/TPN-8 scans 360
used with Interrogator Set AN/
deg in synchronization
TPX-44, place IFF ANT
with iff antenna.
9
---------------------------
As last indicated ---
SCAN CONT switch on Elec-
trical Equipment Cabinet CY-
4922/TPX (part of Interrogator
Set AN/TPX-44) to RADAR,
and perform b through h below.
b.
Ppi sweeps on both
b.
Control-Indicators C-
Observe displays on both
6988/TPN-18. Sweeps
Control-Indicators C-69R88
rotate cw.
TPN-18.
c.
c.
On slave Pulse Generator O-
Ppi sweeps on both
1333/TPN-18 place SCAN
Control-Indicators C-
MODE switch to IFF.
6988/'TPN-18 rotate cw.
d.
d.
On associated iff equipment
Ppi sweeps on both
place IFF ANTENNA switch
Control-Indicators C-
on Electrical Equipment Cabi-
6988/TPN-18 stop.
net CY-4922/TPX to OFF.
4-30
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