TB 9-6625-2334-24
(10) Set signal generator for the frequencies in table 6. Slowly adjust signal
generator amplitude until TI indication is stable at applied frequency . If adjusted signal
generator amplitude exceeds limits specified, perform b below.
Table 6. Channel A Sensitivity
Adjusted signal
Signal generator output
generator amplitude
(MHz)
(mV)
10
< 25
40
< 25
70
< 50
100
< 50
b. Adjustments
f
(1) Connect signal generator RF output to TI INPUT A using 50
eedthrough termination.
(2) Set signal generator for a 100 MHz, 50 mV output.
(3) Slowly decrease signal generator amplitude to 25 mV while adjusting A12R28
(fig. 1) to obtain a stable indication of applied frequency (R). Continue decreasing signal
generator amplitude while adjusting A12R28 (fig. 1) until maximum sensitivity is achieved.
10. Channel B Sensitivity
a. Performance Check
(1) Set TI switches as listed in (a) through (d) below:
FUNCTION to RATIO B/A.
(a)
FREQ RESOLUTION, N to 1Hz.
(b)
CHANNEL A DC/AC to AC.
(c)
CHANNEL A ATTEN to X10.
(d)
(2) Connect TI rear panel internal 10 MHz oscillator output (10MHz OUT for option
010) to TI INPUT A.
(3) Connect function generator Function Outputs Unbalanced to TI INPUT B
using 50 feedthrough termination.
NOTE
In (4) through (8) below the TI indications are not critical but
should be stable. Only the channel B input sensitivity is being
checked.
(4) Set function generator for a sine wave, 50
output. Set function generator to
each frequency in table 7 and slowly adjust function generator amplitude until TI indicates
as listed. If adjusted function generator amplitude exceeds limits specified, perform b below.
