TB 9-4931-540-24
(b) RBW-VBW-ST ENTRY RES BW to 10 Hz.
(c) ENTRY blue shift and then ENTRY CAL ON.
(d) ENTRY blue shift and then ENTRY CAL OFF.
(12) Set synthesizer/level generator as listed in (a) through (c) below:
(a) FREQUENCY to 100 kHz.
(b) AMPLITUDE to 25 dBm.
(c) AMPTD INCR to 0.1 dBm.
(13) Press keys and enter values using ENTRY keys as listed in (a) and (b) below:
(a) SWEEP ENTRY MANUAL to 100 kHz.
or .
(b) INPUT ENTRY RANGE to -25 dBm using ENTRY STEP
(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
Table 7. 50
Flatness
Synthesizer/level
Test instrument
generator
marker amplitude
frequency and TI
SWEEP ENTRY
Indications
MANUAL settings
(dBm)
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
7 combined.
7 combined.
(21) Subtract indication recorded in (19) above from indication recorded in (20)
above. Difference will be 1 dB.
11