TM 11-5840-281-35/1
Control settings
Step No.
Test equipment
Equipment under test
Test procedure
Performance standard
switch momentarily placed
to EL, strobe artificial sweep
on crt and observe that eleva-
5------------------------------------------
As last indicated-------
tion and artificial sweep (dot)
coincide. Observe indication on
ALTITUDE indicator.
a.
a.
On Pulse Generator 0-1333/
None.
TPN-18 under test, set
RANGE MILES switch
to 20 and ANGLE VOLTS
control to setting recorded in
step 3d above.
b.
b.
Adjust ALTITUDE control
0100 (1000 ft.) 0020
to position height finder
(200 ft.)
cursor on 4mi range mark.
With ANGLE VOLTS switch
momentarily placed to EL,
strobe artificial sweep on crt
6------------------------------------------
As last indicated ------
and observe that elevation and
artificial sweep (dot) coincide.
Observe indication on
ALTITUDE indicator.
a.
a.
On Pulse Generator 0-1333/
None.
TPN-18 under test, set
ANGLE VOLTS control to
setting recorded in step 3f
above.
b.
b.
Adjust ALTITUDE control
0300 (3000 ft.) 0042
to position height finder cursor
(420 ft.)
on 5-mi range mark. With
ANGLE VOLTS switch
momentarily placed to EL,
strobe artificial sweep on crt
7------------------------------------------
As last indicated ------
and observe that elevation and
artificial sweep (dot) coincide.
Observe indication on
ALTITUDE indicator.
a.
a.
On Pulse Generator 0-1333/
None.
TPN-18 under test, set ANGLE
VOLTS control to setting
recorded in step 3h above.
b.
b.
Adjust ALTITUDE control
0600 (6000 ft.) 0072
to position height finder
(720 ft.)
cursor on 5-mi range mark.
With ANGLE VOLTS switch
momentarily placed to EL,
strobe artificial sweep on crt
8------------------------------------------
As last indicated -------
and observe that elevation
and artificial sweep (dot)
coincide. Observe indication on
ALTITUDE indicator.
a.
a.
On Pulse Generator 0-1333/
None.
TPN-18 under test, set
ANGLE VOLTS control to
setting recorded in step 2j
above.
4-48
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