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Figure 4. A7 phase lock loop circuit card adjustment location.
Table 7. Sine Wave Amplitude Accuracy 100 kHz to 4.999 MHz

Calibration Procedure For Function Generator Sg-1288/G Page Navigation
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TB 9-6625-2233-24
Table 6. Sine Wave Amplitude Accuracy 50 Hz to 99.99 kHz
Test instrument
Multimeter rms indications (V)
Output
Frequency
(V p-p)
Min
Max
50
Hz
1.11
0.381
0.404
50
Hz
.099
.0339
.0361
50
Hz
.2
.06858
.07282
50
Hz
.999
.345
.361
50
Hz
2
.689
.725
50
Hz
15
5.14
5.46
99.9  kHz
1.11
.381
0.404
99.9  kHz
.099
.0339
.0361
99.9  kHz
.2
.06858
.07282
99.9  kHz
.999
.345
.361
99.9  kHz
2
.689
.725
99.9  kHz
15
5.14
5.46
(5) Reduce TI output to minimum.
(6) Zero and calibrate measuring receiver sensor module.
(7) Set the measuring receiver to measure power in millivolts.
(8) Disconnect  TI  UNBALANCED  output  from  multimeter  and  connect
UNBALANCED output to measuring receiver sensor module (do not use the 50 Ω
feedthrough termination).
(9) Press pushbuttons as listed in (a) through (h) below:
(a)
FREQUENCY.
(b)
100.
(c)
EXP.
(d)
3.
(e)
ENTER.
(f)
AMPLITUDE.
(g)
.099.
(h)
ENTER.
(10) Measuring receiver will indicate within minimum maximum limits as listed in
table 7.
(11) Repeat technique of (9) (a) through (h) and (10) above substituting settings and
indications listed in table 7.
17


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