TB 9-4931-540-24
Table 11. 60 dB Bandwidth - Continued
Test instrument
RBW-VBW-ST
ENTRY
RBW-VBW-ST
Actual marker
ENTRY
FREQUENCY
ENTRY
offset
SWEEP TIME
SPAN
RES BW
settings (sec)
settings
settings
indications
100 Hz
2 kHz
8
300 Hz
5 kHz
5
1 kHz
20 kHz
5
3 kHz
50 kHz
5
10 kHz
100 kHz
5
30 kHz
500 kHz
5
(24) Divide first TI actual marker offset frequency indication recorded in table 11 by
first TI actual marker offset frequency indication recorded in table 10. Results will be < 11
to 1 ratio.
(25) Repeat (24) above for remaining TI actual marker offset frequency indications
recorded in tables 11 and 10.
input.
(26) Disconnect synthesizer/level generator OUTPUT 50
from TI 50-75
b. Adjustments. Refer to paragraph 6 d.
19. Tracking Generator Flatness
a. Performance Check
(1) Press keys and enter values using ENTRY keys as listed in (a) through (g) below:
ENTRY blue shift and then 604.
(a)
ENTRY INSTR PRESET.
(b)
ENTRY dB/DIV to 1 dB.
(c)
or .
INPUT ENTRY RANGE to -20 dBm using ENTRY STEP
(d)
ENTRY START FREQ to 100 kHz.
(e)
ENTRY STOP FREQ to 40.1 MHz.
(f)
TRACE CLEAR A.
(g)
(2) Allow one complete sweep to occur.
(3) Press keys and enter values using ENTRY keys as listed in (a) through (f) below:
TRACE STORE A
B.
(a)
TRACE VIEW B to off.
(b)
ENTRY SAVE and then 1.
(c)
ENTRY INSTR PRESET.
(d)
ENTRY RECALL and then 1.
(e)
INPUT ENTRY RANGE to .0 dBm using ENTRY STEP .
(f)
(4) Connect TI TRACKING GENERATOR output to 50-75
input.