TB 9-6625-2334-24
Table 9. Channel B Sensitivity
Adjusted function
Function generator
Test instrument
generator amplitude
frequencies
indications
(mVp-p)
10 kHz
0.001000
<71
20
Hz
0.000002
<71
100
Hz
0.000010
<71
1 kHz
0.000100
<71
100 kHz
0.010000
<71
1 MHz
0.100000
<71
(13) Disconnect function generator from TI.
f
(14) Connect signal generator RF output to TI INPUT B using 50
eedthrough termination.
(15) Set TI FREQ RESOLUTION, N switch to 10Hz.
(16) Set signal generator for frequencies in table 10. Slowly adjust signal generator
amplitude until TI indicates as listed. If adjusted signal generator amplitude exceeds
limits specified, perform b below.
Table 10. Channel B Sensitivity
Signal
Adjusted signal
generator
Test instrument
generator
indications
amplitude
frequencies
(MHz)
(mV)
25
10
1.00000
25
40
4.00000
50
70
7.00000
50
100
10.00000
(17) Disconnect signal generator from TI.
b. Adjustments
f
(1) Connect signal generator RF output to TI INPUT B using 50
eedthrough termination.
(2) Set signal generator for a 40 MHz, 50 mV output.
(3) Slowly decrease signal generator amplitude while adjusting A12R26 (fig. 1) for a
stable TI 4.00000 indication. Continue decreasing signal generator amplitude while
adjusting A12R26 (fig. 1) until maximum sensitivity is obtained (R).
11. Channel C Sensitivity (Option 031)
a. Performance Check
(1) Connect signal generator RF output to TI CHANNEL C input.
(2) Set FUNCTION switch to FREQ C and FREQ RESOLUTION, N switch to 1 kHz.