TB 9-6625-2009-24
Table 5. Amplitude Accuracy
Test instrument display (dB)
Calibrator output amplitude values
(dBm)
Min
Max
Reference (1 V)
0 dB = FS
+3
(0.316 V)
8
12
-6.99 (0.1 V)
18
22
-16.99 (0.0316 V)
28
32
-26.99 (0.01 V)
38
42
-36.99 (3.16 mV)
48
52
-46.991 (1 mV)
58
62
1
-56.99 (0.316 mV)
68
72
1
-66.99 (0.1 mV)
78
82
1SWEEP
MODE - MANUAL VERNIER control must be readjusted for a peak indication.
(5) Press AMPLITUDE MODE LINEAR pushbutton.
(6) Adjust calibrator frequency to 10 kHz at 1 V (+13.01 dBm) output amplitude.
(7) Position controls as listed in (a) through (c) below:
(a) SWEEP MODE MANUAL VERNIER control for a peak display.
(b) CAL 10 kHz control for a full scale 1 V indication.
(c) DISPLAY CLEAR WRITE pushbutton pressed momentarily.
(8) Adjust calibrator output amplitude to values listed in table 6. TI display will
indicate within limits specified.
Table 6. Linear Amplitude
Test instrument indication (V)
Calibrator output amplitude values
(1 V = FS)
(dBm)
Min
Max
+ 13.01
(1 V)
Reference
+ 12.10
(0.9 V)
0.88
0.92
+ 11.07
(0.8 V)
0.78
0.82
+ 9.91
(0.7 V)
0.68
0.72
+ 8.51
(0.6 V)
0.58
0.62
+ 6.99
(0.5 V)
0.48
0.52
+ 5.05
(0.4 V)
0.38
0.42
+ 2.55
(0.3 V)
0.28
0.32
- 0.97
(0.2 V)
0.18
0.22
- 6.99
(0.1 V)
0.08
0.12
b. Adjustments. No adjustments can be made.
14. Amplitude Reference Level
a. Performance Check
(1) Set RESOLUTION BANDWIDTH DISPLAY SMOOTHING switch to MAX.
(2) Adjust calibrator frequency to 10 kHz at 1 V output amplitude.
(3) Adjust SWEEP MODE MANUAL VERNIER control for a peak display.