TB 9-6625-2250-24
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.
8. Calibrator Output Accuracy Test
a. Performance Check
(1) Zero and calibrate measuring receiver sensor module.
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 50 .
(6) Press TI keys and enter values using the DATA keys as listed in (a) through (g) below:
(a) INSTRUMENT STATE PRESET.
(b) FREQUENCY then [CENTER FREQ] to 300 MHz.
(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.
