TB 9-6625-2329-24
Table 7. RF Attenuator Accuracy
Measuring receiver indications
Test instrument
DATA and
(dBm)
ENTER/UNITS
(dBm)
Min
Max
0
-1.5
+1.5
10
8.5
11.5
13
11.5
14.5
(6) Press TI PARAMETERLEVEL pushbutton, enter DATA 0 numerical value
and press ENTER/UNITS dBm key.
(7) Set measuring receiver to measure tuned RF level at 30 MHz.
(8) Press TI PARAMETERLEVEL pushbutton, enter DATA numerical value,
and press ENTER/UNITS dBm key for each row in table 8. Using measuring receiver and
RF power measurement techniques, measured power will indicate within limits.
Table 8. RF Attenuator Accuracy (Interrupted)
Measuring receiver indications
Test instrument
DATA and
(dBm)
ENTER/UNITS
(dBm)
Min
Max
-10
-8
-12
-20
-18
-22
-30
-28
-32
-40
-38
-42
-50
-48
-52
-60
-58
-62
-70
-68
-72
-80
-78
-82
-90
-88
-92
-100
-98
-102
-110
-108
-112
(9) Press TI PARAMETERLEVEL pushbutton, enter DATA 0 numerical value
and press ENTER/UNITS dBm key.
(10) Adjust controls as listed in (a) through (c) below:
(a) Press SHIFT PARAMETER SPECIAL pushbutton, enter DATA 1
numerical value, and press ENTER/UNITS dBm key.
PARAMETER LEVEL
PARAMETER STEP
pushbutton,
(b) Press
pushbutton, enter DATA 5 numerical value, and press ENTER/UNITS dBm key.
(c) Press VARIATIONSTEP key.
(11) Press TI VARIATION STEP
pushbutton for each row in table 9. Using
measuring receiver and tuned RF power measurement techniques, measured power will
indicate within limits specified.
12
