TM 11-5840-281-35/1
Control settings
Step No.
Test equipment
Equipment under test
Test procedure
Performance standard
e.
CHANNEL A
Connect coaxial cable between
e.
None.
CHANNEL A VERTICAL
SYNC IN connector on radar
POSITION: Midposition
test set and tee adapter on
CHANNEL A SENSI-
PRE TRIGGER testpoint
TIVITY (VOLTS/
TP211 on radar transmitter.
CM): .1
CHANNEL A SENSI-
TIVITY VERNIER:
CALIBRATED
CHANNEL A AC-DC:
DC
2
As last indicated, except:
As last indicated --------------
a.
a.
On radar test set, adjust ZERO
None.
Radar test set
SET controls for ZERO set
POWER: ON
indication on power meter.
Rf power switch:
b.
b.
Place function switch to INT
None.
POWER SET
FM.
Function switch: OFF
c.
c.
Rotate FM AMPLITUDE
None.
RF TUNING: Operating
control fully cw (100).
d.
d.
Set ADD TO PWR. METER
None.
control to 0 DB (PWR SET).
e.
e.
Rotate OUTPUT ATTEN.
None.
control fully cw.
f.
f.
Adjust RF TRIMMER control
None.
until indication is obtained on
power meter.
g.
g.
Place function switch to CW._-
None.
h.
h.
Adjust RF TRIMMER and
None.
REFLECTOR controls for max
indications on power meter.
Maintain power meter indica-
tion below halfscale by adjust-
ing OUTPUT ATTEN. control.
i.
I.
Adjust OUTPUT ATTEN.
None.
control until power meter Indi-
cates 0 dbm (PWR SET).
j.
j.
Rotate OUTPUT ATTEN.
None.
control cursor until cursor index
mark aligns with red mark
(PWR SET) on OUTPUT
ATTEN. control dial.
k.
k.
Alternately place function
None.
switch to OFF and CW. Power
meter indication should be
ZERO SET in OFF, and 0 dbm
(PWR SET) in CW. If neces-
sary, readjust ZERO SET con-
trol (function switch placed to
OFF) and OUTPUT ATTEN.
control (function switch placed
to CW) as required.
NOTE. Radar test set calibra-
tion must be checked by perform-
ing g through k above if frequency
of radar test set Is changed.
3
As last indicated, except:
As last indicated --------------
a.
a.
Position azimuth Antenna AS-
None.
Vtvm
1292/TPN-8 by hand to
RANGE: 1v
approximately middle of azi-
SELECTOR: -
muth scan (O-degree on azimuth
scan protractor).
4-22
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