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33.
Check
Option
4t
Frequency
Span/Div
Accuracv
!1t73
o.t
5
MHz/Div
over
the
cdnter
6 divisions
of
the
display)
.,
Sp:laccuracy
is c_hecked
at
center
frequency
set-
tings
of
6
GHz
and
11
GHz.
a.
'Connect
the
test
equipment
as
shown
in
Figure
4-26.
set
the
sp€ctrum
Analyzer
"ontroir
",
follows:
Perforrnance
Check
procedure
-
4g4ful4g4Ap
Service
Vol.
1
b.
Modulate
the
Comb
Generator
signal
with
.2ps
time
markers.
c.
peak
the response
with
the
MANUAL
pEAK
con-
trol and
set
REF
LEVEL
for
the
best
marker
definition.
d.
use
the
Horizontal
poslTloN
control
on
the
Spectrum
Anafyzer
to
position
a
marker
to center
screen
then
check
the accuracy
over
the center
six
divi-
sions
of
the
disptay.
e.
Check
that.the^tim€
marks
align
with
the
maior
graticule
lines
within
S0 kHz.
f.
RESET
th€ CENTER
FREQUENCY
tO
11
GHZ.
S.
Check
SPAN/D|V
accuracy.
Error
must
not
exceed
*50
kHz/Div.
FREQ
RANGE
CENTER
FREQUENCY
sPAN/DtV
RESOLUTION
BANDWIDTH
REF
LEVEL
TrMElDtv
VERTICAL
DISPLAY
5.4-18
GHz
6
GHz
5 MHz
100
kHz
As
Needed
AUTO
10
dB/Dtv
SPECTRUT
ANLAYZER
UIiIDER
TEST
COMB
GENERATOR
MOOULE
Figure
4-26.
Test
equipmeni
setup
for
checking
option
4i
span/Div
accuracy.
4-37