TB 9-6625-2250-24
Table 8. Log Gain Uncertainty (1 dB Steps) - Continued
Synthesizer/level
Test instrument
MKR indications
AMPLITUDE (REF LVL)
generator amplitude
settings
settings
(dB)
(dBm)
(dBm)
Min
Max
+5
-5
-6
-4
+4
-6
-7
-5
+3
-7
-8
-6
+2
-8
-9
-7
+1
-9
-10
-8
0
-10
-11
-9
-1
-11
-12
-10
-2
-12
-13
-11
(24) Set synthesizer/level generator amplitude to +10 dBm and AMPTD INCR to 10 dB.
(25) Press TI keys to values using DATA keys as listed in (a) through (e) below:
MARKER MKR then [MARKER NORMAL].
(a)
AMPLITUDE then [REF LVL] to 0 dBm.
(b)
[LINEAR] then [MORE].
(c)
[UNITS] then [dBm].
(d)
CONTROL TRIG then [CONT].
(e)
(26) Adjust attenuator No. 1 to position signal peak 2 to 3 dB (2 to 3 divisions) below
TI reference level.
(27) Press TI keys as listed in (a) through (e) below:
CONTROL TRIG.
(a)
[SINGLE].
(b)
[SINGLE].
(c)
MARKER ON.
(d)
[MARKER DELTA].
(e)
(28) Press synthesizer/level generator AMPLITUDE key.
(29) Press synthesizer/level generator INCR
key.
(30) Press TI AMPLITUDE key then [REF LVL] to -10 dBm.
(31) Press TI CONTROL TRIG key then [SINGLE] key and wait for completion of sweep.
MKR indication will be within limits specified in first row of table 9.
(32) TI
(33) Repeat technique of (29) through (31) above for synthesizer/level generator and
TI AMPLITUDE [REF LVL] settings listed in table 9. TI
MKR indications will be
within limits specified in table 9.
