TB 9-4931-540-35
(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.
Test instrument
RBW-VBW-ST
ENTRY REFERENCE LEVEL
settings (dBm)
ENTRY
10
0
-10
-20
-30
-40
-50
-60
-70
-801
-902
RES BW
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.
12. 50Ω Flatness
a. Performance Check
(1) Connect synthesizer/level generator rear panel 10 MHz OUTPUT to
synthesizer/function generator rear panel EXT REF IN.
(2) Disconnect synthesizer/level generator OUTPUT 50Ω from TI 50-75Ω input.
(3) Connect synthesizer/function generator SIGNAL to TI 50-75Ω input.
(4) Press keys and enter values using ENTRY keys as listed in (a) through (k)
below:
(a) ENTRY INSTR PRESET.
(b) INPUT AUTORANGE to off.
(c) INPUT ENTRY RANGE to -25 dBm using ENTRY STEP ⇑ or ⇓.
(d) ENTRY REFERENCE LEVEL to -22 dBm.
(e) ENTRY START FREQ to 0 Hz.