TB 9-4931-540-35
(14) Adjust synthesizer/level generator amplitude, using INCR ⇑ or ⇓ keys, until TI
marker amplitude indication is as close as possible to TI marker amplitude indication
recorded in table 6 for 100 kHz setting.
(15) Set synthesizer/level generator frequency to 1.1 MHz.
(16) Press SWEEP ENTRY MANUAL key and enter 1.1 MHz using ENTRY keys.
(17) Record TI marker amplitude indication in table 7.
(18) Repeat technique of (15) through (17) above using remaining settings listed in
table 7.
Table 7. 50Ω Flatness
Synthesizer/level
Test instrument
generator
marker amplitude
frequency and TI
Indications
SWEEP ENTRY
(dBm)
MANUAL settings
1.1 MHz
5.1 MHz
9.53 MHz
10.1 MHz
15.1 MHz
20.1 MHz
25.1 MHz
30.1 MHz
35.1 MHz
40.1 MHz
(19) Record the most negative TI marker amplitude indication from table 6 and table
7 combined.
(20) Record the most positive TI marker amplitude indication from table 6 and table
7 combined.
(21) Subtract indication recorded in (19) above from indication recorded in (20)
above. Difference will be ≤ 1 dB.
(22) Repeat technique of (2) through (21) above for remaining TI INPUT ENTRY
RANGE settings.
(23) Disconnect synthesizer/level generator rear panel 10 MHz OUTPUT from
synthesized/function generator rear panel EXT REF IN.
(24) Disconnect synthesizer/level generator OUTPUT 50Ω from TI 50-75Ω input.
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