TB 9-6625-2000-24
NOTE
Maintain this indication throughout remainder of this
performance check.
(5) If frequency counter does not indicate within limits listed in first row of table 4,
perform b below. Record indication.
counter indications are not within limits specified, perform b below.
Table 3. Frequency Accuracy
TI FREQUENCY
Frequency counter
GHz dial settings
indications (GHz)
Min
Max
7.00
6.93
7.07
7.50
7.425
7.575
8.00
7.920
8.080
8.50
8.415
8.585
9.00
8.910
9.090
9.50
9.405
9.595
10.00
9.900
10.100
10.50
10.395
10.605
11.00
10.890
11.110
b. Adjustments
(1) Adjust FREQUENCY GHz control to position the CAM FOLLOWER at fixed point
(approximately 9 GHz).
(2) If frequency counter indication is not within 1 percent of FREQUENCY GHz dial
indication, loosen CAM FOLLOWER SET SCREW (fig. 1) and adjust pushrod yoke in or out as
(3) Tighten CAM FOLLOWER SET SCREW and observe that frequency counter
indication remains within 1 percent of FREQUENCY GHz dial setting.
(4) Loosen four hex nuts on underside of TUNING CAM for ADJUSTMENTS 4, 5, and
(5) Adjust FREQUENCY GHz control to position the eccentric ADJUSTMENT 4
FREQUENCY GHz dial to nearest cardinal point. Adjust hex nut 4 until frequency counter
indication is same as test instrument FREQUENCY GHz dial indication. Hold hex nut 4
with a wrench and tighten nut on underside of tuning cam with another wrench while
observing that frequency counter indication remains within 1 percent of FREQUENCY
GHz dial setting (R).
5