Filter
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4. Impulse and Resolution Bandwidth Accuracy
Test
17.
18.
19.
20.
21.
22.
23.
24.
25.
26.
27.
28.
29.
30.
31.
32.
Tl
to 30 kHz. On the
Set the frequency synthesizer
(FREQUENC‘
spectrum analyzer key in [FREQUENCY
SPP
0.5 seconds, SWEEP
(SINGLEI),
MA
MARKER amplitude in
Table
4
3011
[
Z,
SWEEP TIME]
RKER (PEAK SEARCH). Record
-2.
Calculate the Impulse BW of the 300 kHz filter using the formula
in step 8. Record in
Table
4-2.
Set the frequency synthesizer (FREQUENCY] to 1 MHz. Set the
pulse/function generator WID to 100
ns.
On the spectrum analyzer key in:
[RES]
100 kHz (i),
lJV’DEOBW)
1 MHz, [CENTER FREQUENCY) 1 MHz,
CFREQUENCY
SPAN) 400
kHz,
SWEEP TIME
IAUTO),
SWEEP
@Z’F),
MARKER [PEAK SEARCH].
Record MARKER amplitude in
‘Ihble
4-2.
Set the frequency synthesizer [FREQUENCY] to 10 kHz. On the
spectrum analyzer, key in: [FREQUENCY SPAN) 0 Hz, (SWEEP TIME]
0.5 seconds, SWEEP
l,S’NGLEJ
MARKER [PEAK SEARCH). Record
MARKER amplitude in Table 4-2.
Calculate the Impulse BW of the 100
kHz filter using the formula
in step 8. Record in
Table
4-2.
Set the frequency synthesizer (FREQUENCY] to 300 kHz. Set the
pulse/function generator WID to 333 ns.
On the spectrum analyzer, key in:
[REs)
30 kHz (i),
~~
.--_
-_
.,
fVll3FC-l
RW)
300 kHz,
CCENTER
FREQUENCY) 300 kHz, [FREQUENCY SPAN] 120 kHz,
SWEEP TIME
IAUTO),
SWEEP
@GiF),
MARKER,
CPEAK
SEARCH).
Record MARKER amplitude in Table 4-2.
Set
the frequency synthesizer
CFREQUENCY]
to 3 kHz. On the
spectrum analyzer, key in: (FREQUENCY SPAN] 0 Hz,
~SWEEP
TIME)
0.5 seconds, SWEEP
@FZF),
MARKER (PEAK SEARCH]. Record
MARKER amplitude in Table 4-2.
Calculate the Impulse BW of the 30
kHz filter using the formula in
step 8. Record in Table 4-2.
Set the frequency synthesizer
[FREQUENCY) to 100 kHz. Set the
pulse/function generator WID to 1
ps.
On the spectrum analyzer key in
@FGFBWI)
10 kH
100
kHz,
&ENTER
FREQUENCY] 100 kHz,
[FRI
SWEEP TIME
[AUTO_],
SW:
Record MARKER amplituc
z (i),
@iZGXQ
:QUENCY SPAN) 40 kHz,
EEP (SINGLE), MARKER [PEAK SEARCH).
de in
‘Ihble
4-2.
2
--
Set the frequency synthesizer
CFREQUENCV~
tn
1 kHz. On the
spectrum analyzer key in: (FREQUENCY
SI
0.5 seconds, SWEEP
CRINGLE),
MAR
MARKER amplitude in Table
L
m
0 Hz, [SWEEP TIME]
KER (PEAK SEARCH). Record
1-2.
Calculate the Impulse BW of the 10 kHz filter using the formula in
step 8. Record in
‘lhble
4-2.
Set the frequency synthesizer [FREQUENCY) to 30 kHz. Set the
pulse/function generator WID to 3.33
ps.
On the spectrum analyzer key in:
@?X?i)
3 kHz (i),
CVloEo]
30 kHz, (CENTER FREQUENCY) 30 kHz, [FREQUENCY SPAN) 12 kHz,
4-6
Option 462