TB 9-4931-540-24
(21) Press keys and enter values using ENTRY keys as listed in (a) through (d) below:
RBW-VBW-ST ENTRY RES BW to 3 kHz.
(a)
INPUT ENTRY RANGE to .0 dBm using ENTRY STEP .
(b)
ENTRY REFERENCE LEVEL to 10 dBm.
(c)
ENTRY dB/DIV to 2 dB.
(d)
(22) Set synthesizer/level generator amplitude to 10 dBm.
(23) Repeat (17) through (20) above.
(24) Press keys and enter values using ENTRY keys as listed in (a) through (d) below:
RBW-VBW-ST ENTRY RES BW to 1 kHz.
(a)
INPUT ENTRY RANGE to .0 dBm using ENTRY STEP .
(b)
ENTRY REFERENCE LEVEL to 10 dBm.
(c)
ENTRY dB/DIV to 2 dB.
(d)
(25) Set synthesizer/level generator amplitude to 10 dBm.
(26) Repeat (17) through (20) above.
(27) Press synthesizer/level generator INCR .
(28) Press ENTRY REFERENCE LEVEL key and enter -70 dBm using ENTRY keys.
(29) Subtract synthesizer/level generator amplitude from TI marker amplitude
indication. Record difference in table 5 for ENTRY REFERENCE LEVEL 90 dBm setting.
(30) Repeat technique of (24) through (29) above for remaining RWB-VBW-ST
ENTRY RES BW settings listed in table 5.
(31) Values recorded in table 5 will be within limits specified in (a) through (c) below:
(a) 10 to -50 dBm: 0.4 dB.
(b) -50 to -70 dBm: 0.7 dB.
(c) -70 to -90 dBm: 1.5 dB.
Table 5. Reference Level Accuracy
Test instrument
RBW-VBW-ST
ENTRY REFERENCE LEVEL
ENTRY
settings (dBm)
RES BW
-801
-902
10
0
-10
-20
-30
-40
-50
-60
-70
settings
30 kHz
XXXX
XXXX
10 kHz
XXXX
3 kHz
XXXX
1 kHz
300 Hz
100 Hz
30 Hz
10 Hz
3 Hz
1Not
performed at 30 kHz setting.
2Not
performed at 30, 10, and 3 kHz settings.
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