TB 9-6625-2151-24
Test instrument FILTER selections and left display indications
Calibrator
C-
15 kHz
Notch filter1
MESSAGE
FLAT
3 kHz FLAT
PROGRAM
50 KBIT
settings (Hz)
(dBm)
(dBm)
(dBm)
(dBm)
(dBm)
(dBm)
100
---
---
---
62 to 65
---
---
300
73 to 74
---
---
---
---
---
400
---
---
---
---
---
90
500
---
---
---
83 to 84
---
---
88
862
---
---
---
---
---
900
89 to 90
---
---
---
---
---
1000
90
90
90
90
90
<40
1020
---
---
---
---
---
<40
88
1182
---
---
---
---
---
1700
---
---
---
---
---
90
2000
---
---
---
94 to 95
---
---
2500
88 to 89
---
---
---
---
---
3000
87 to 88
86 to 88
---
---
---
---
4500
66 to 71
---
---
---
---
---
5000
---
---
---
95 to 98
---
---
6000
---
75 to 80
---
---
---
---
10,000
---
---
---
78 to 85
---
---
15,000
---
---
86 to 88
---
89 to 90
---
25,000
---
---
---
---
87 to 88
---
30,000
---
---
75 to 80
---
---
---
35,000
---
---
---
---
84 to 86
---
50,000
---
---
---
---
62 to 67
---
Press MEASUREMENT MEAS key to select NOISE WITH TONE then press FILTER FILTER key to select 15 kHz
1
FLAT.
, STEP UP, STEP DOWN, and
keys until TI right display indicates
(9) Press
1010 Hz.
(10) Connect oscilloscope CHAN 1 to pin 4 of JU5 (fig. 1).
(11) Adjust R132 (fig. 1) for minimum ac signal on oscilloscope (R).
, STEP UP, STEP DOWN, and
keys until TI right display indicates
(12) Press
1025 Hz.
(13) Connect oscilloscope CHAN 1 to TP7 (fig. 1).
(14) Adjust R180 (fig. 1) for minimum ac signal on oscilloscope (R).
(15) Move shorting bars to original position (JU5 shorting pins 1 to 16, 2 to 15, 3 to
a. Performance Check