TB 9-6625-2309-35
(13) Press MENU DELAY pushbutton to set B Delay to B = A + 0.000010000000
(10 sec).
i. Press REAL TIME pushbutton.
j. Press HOR CONT as required to observe FOCUS generated pulse on TI display
0 km
4 km
8 km
A
FOCUS
GENERATED
PULSE
974. 0
982. 0
990. 0
↑ 8. 0 dB / div
4. 0 m / div →
A = 982. 0 m
INDEX: 1. 4990
B = 4, 927. 9 m
λ: 850 MM
PW:
40 ns
A→B = 3, 945. 9 m
# AVG = 4, 096. 0
2-POINT LOSS: 14. 50 dB
Figure 22. Example of
locating FOCUS generated pulse (TD-260C).
k. Perform steps (1) through (4) below:
(1) Press digital delay generator MENU DELAY pushbutton to decrease A = T+
value by 100 nanoseconds increments until FOCUS generated pulse is just to the right of
(2) Press HOR EXP as required for a display indication of 2.0m/div.
(3) Repeat technique of (1) above using 10 nanosecond increments instead of 100
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