TB 9-6625-2211-24
20. Input Frequency Accuracy
a. Performance Check
(1) Position controls as listed in 7 d above.
(2) Connect equipment as shown in figure 12.
Figure 12. Input frequency - equipment setup.
(3) Set SIG GEN FUNCTION switch to SWP 5 MHz and MEASUREMENT
FUNCTION SEL switch to FREQ.
(4) Adjust oscilloscope controls as necessary to view 5 timing markers on
Channel 2 display.
with a 0.0-dBm level.
NOTE
Signal generator No. 1 output level controls may require
readjusting to obtain optimum usable signal in (6) and (7)
below.
(6) Adjust signal generator No. 1 frequency controls to center the oscilloscope
Channel 1 signal on the first timing marker listed in table 15. The signal generator No. 1
display will indicate as specified.
(7) Repeat technique of (6) above for TI timing markers listed in table 15. The
signal generator No. 1 display will indicate as specified.