TM 11-6625-847-45
Simulator, Radio Frequency SM-442A/GRC-
4-12. Summary of Test Data
Personnel may find it convenient to arrange the
Continued
checklist in a manner similar to that shown below:
Test
Performance standard
Simulator, Radio Frequency SM-442A/GRC
12.
A1R1 fully clockwise
Less than 70 usec to
Test
Performance standard
and A1R2 rotated
more than 210 usec.
13.
A1R1 fully counter-
Amplitude varies less
1. Voltage test
Less than + 190 volts dc
clockwise to fully
than 0.1 to more than
to more than +210
clockwise
0.8 volt
volts dc.
14.
Oscillator modules
Less than 30 mv.
2. Regulation test
1 percent of the value
A1A2, A1A3,
in test 1 above.
and A1A4
3. Ripple test
Ripple not greater than
15.
IF OSCILLATOR
More than 300 mv.
0.2 percent rms of
control fully
output voltage.
clockwise
4. Test set DC VOLT-
Less than 18 volts dc to
16.
Frequency check
1.7500 mc 100 cps;
AGE 20
more than 22 volts dc.
1.7515 mc 100 cps;
5. Negative voltage
Between -31 volts dc and
1.7525 mc 100 cps
-35 volts dc.
17.
Rotate C1 on each
Not more than 100 cps
6. 125 volts dc
Between 115 vdc and
IF oscillator
from value in test 16
135 vdc.
above.
7. 6.3-volt ac filament
Between 12 volts to 14
18.
Mixer module A1A5
TWO TONE OUT, 0.075
voltage
volts, peak to peak,
mv.
square wave.
19.
Test load at A1A5J3
Less than 1 mv; A1A5R1
8. Pulse generator
Positive pulse less than
counterclockwise.
module A1A1
1.0 usec to more than
20.
Test load at A1A5J3
More than 10 mv; A1A5R1
1.2 usec.
clockwise.
9. A1R3 rotated
Positive pulse less than
21.
Test load at A1A5J4
Less than 1 mv; A1A5R1
0.35 volts to more than
counterclockwise.
5 volts.
22.
Test load at A1A5J4
More than 10 mv;
10. A1R2 rotated
Positive pulse less than
A1A5R1 clockwise
70 usec to more than
23.
Potentiometer ad-
25 mv or approximately
210 usec.
justed for maxi-
20 db.
11. A1R1 rotated
Amplitude less than 0.1
mum output.
volt to more than 1.3
24.
Modules A1, A2,
At A1A3A1J3: not less
volts.
A4, and A5
than 45 mv; less than
40 mv; at least 100 mv.
25.
Module A3
Not less than 5 mv; less
than 460 mv; more
than 660 mv.
4-18
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