TB 9-4931-540-24
(17) Connect synthesizer/level generator OUTPUT 50 to low pass filter No. 1
f
input and connect low pass filter No. 1 output to TI 1 M input using a 50
eedthrough termination.
(18) Press keys and enter values using ENTRY keys as listed in (a) through (h) below:
ENTRY INSTR PRESET.
(a)
ENTRY blue shift and then ENTRY CAL OFF.
(b)
ENTRY STOP FREQ to 40.1 MHz.
(c)
RBW-VBW-ST ENTRY RES BW to 30 Hz.
(d)
RBW-VBW-ST ENTRY VIDEO BW controls to 1 Hz.
(e)
or .
INPUT ENTRY RANGE to -15 dBm using ENTRY STEP
(f)
ENTRY REFERENCE LEVEL to -15 dBm.
(g)
INPUT IMPEDANCE 1 M to on.
(h)
(19) Set synthesizer/level generator as listed in (a) through (c) below:
(a) FREQUENCY to 13.31 MHz.
(b) AMPLITUDE to -15 dBm.
(c) AMPTD INCR to 0.1 dBm.
(20) Press keys and enter values using ENTRY keys as listed in (a) through (d) below:
SWEEP ENTRY MANUAL to 13.31 MHz.
(a)
ENTRY CF STEP SIZE to 13.31 MHz.
(b)
ENTRY blue shift and then ENTRY CAL ON and wait for TI to calibrate.
(c)
ENTRY blue shift and then ENTRY CAL OFF.
(d)
or
keys, until TI
(21) Adjust synthesizer/level generator amplitude, using INCR
marker amplitude indicates -15 dBm.
(22) Press MARKER/CONTINUOUS ENTRY OFFSET key to on and then press
MARKER/CONTINUOUS ENTRY ENTER OFFSET key.
key.
(23) Press SWEEP ENTRY MANUAL key and then ENTRY STEP
TI
OFFSET amplitude indication will be <-70 dBm.
key. TI marker amplitude indication will be <-70 dBm.
(24) Press ENTRY STEP
(25) Disconnect low pass filter No. 1 from TI, 50
feedthrough termination, and
synthesizer/level generator.
(26) Connect synthesizer/level generator OUTPUT 50 to low pass filter No. 2
fnput and connect low pass filter No. 2 output to TI 1 M input using a 50
i
eedthrough termination.
(27) Set synthesizer/level generator as listed in (a) through (c) below:
(a) FREQUENCY to 20.01 MHz.
(b) AMPLITUDE to -15 dBm.
(c) AMPTD INCR to 0.1 dBm.
(28) Press keys or set controls to values as listed in (a) through (e) below:
20