TB 9-6625-2250-35
c. Press TI keys as listed in (1) through (3) below:
(1) INSTRUMENT STATE RECALL
(2) [MORE]
(3) [CRT ADJ PATTERN]
d. Adjust TRACE ALIGN (rear panel) until
leftmost line of
test pattern A
(fig. 1) is
parallel with crt bezel.
e. Adjust X POSN (rear panel) until
leftmost @
characters B
(fig. 1) and
softkey labels
C (fig. 1) appear just inside left and right edges of crt bezel.
f. Adjust Y POSN (rear panel) until the
softkey labels C
(fig. 1) align with the
appropriate softkeys.
g. Press INSTRUMENT STATE PRESET key.
a. Performance Check
NOTE
If necessary, perform measuring receiver and sensor module
(11722A) ZERO and CALIBRATE.
(1) Connect measuring receiver sensor module input to TI CAL OUTPUT.
(2) Setup measuring receiver to measure frequency. If measuring receiver does not
indicate between 299.9988 and 300.0012 MHz, perform b (1) below.
(3) Setup measuring receiver to measure RF power in dBm at 300 MHz. If
measuring receiver does not indicate between -9.7 and -10.3 dBm, perform b (2) below.
(4) Disconnect sensor module from TI.
(5) Connect TI CAL OUTPUT to INPUT 50Ω.
(6) Press TI keys and enter values using the DATA keys as listed in (a) through (g)
below:
(a) INSTRUMENT STATE PRESET.
(c) SPAN then [SPAN WIDTH] to 20 MHz.
(d) MARKER PEAK SEARCH.
(e) AMPLITUDE then [REF LVL] to -10 dBm.
(f) [MORE].
(g) [REF LVL CAL].
(7) Adjust TI knob until MKR indication is between -9.83 and -10.17 dBm.
(8) Press [STORE REF LVL] key.