TB 9-6625-862-35
FREQUENCY RANGE switch settings
FREQUENCY dial settings
X10
35
X10
100
X10
200
X1
35
X1
50
X1
100
X1
200
X100
35
X100
100
X100
200
b. Adjustments. No adjustments can be made.
10. Output Level Meter and Attenuation
a. Performance Check
(1) Adjust AMPLITUDE (OUTPUT) control to 0 (zero) and adjust meter pointer to
0 using 0 adjustment screw on the meter.
(2) Set FREQUENCY RANGE switch to X1 and turn FREQUENCY dial to 100.
(3) Connect OUTPUT to multimeter input connector.
(4) Adjust AMPLITUDE (OUTPUT) control for + 37dB indication on OUTPUT
b below.
(5) Set FREQUENCY RANGE switch to X10.
(6) Adjust AMPLITUDE control for a 54.86 V indication on multimeter. Record
OUTPUT LEVEL meter indication.
(7) While maintaining OUTPUT LEVEL meter indication recorded in (6) above, set
OUTPUT ATTENUATOR (DB) (OUTPUT DB) 0 to 100 switch to settings listed in
Test instrument OUTPUT
Multimeter indications (V or (dB))
ATTENUATOR (DB) switch
Min
Max
settings
10
16.38
(26.5)
18.38
(27.5)
20
5.18
(16.5)
5.81
(17.5)
30
1.63
(6.5)
1.83
(7.5)
40
0.518
(-3.5)
0.581
(-2.5)
50
0.63
(-13.5)
0.183
(-12.5)
60
0.0518
(-23.5)
0.0581
(-22.5)
70
0.0163
(-33.5)
0.0183
(-32.5)
80
0.00518
(-43.5)
0.00581
(-42.5)
90
0.00145
(-54.5)
0.00206
(-51.5)
100
0.00046
(-64.5)
0.00065
(-61.5)
