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Table 4. Center Frequency Accuracy - Continued
Figure 6. A19 board.
Calibration Procedure For Spectrum Analyzer, Model 8566B
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TB
9-6625-2340-24
Figure
3.
A16
board.
(11)
Set
oscilloscope
to
display
a 0 to 10
volt
sweep
ramp
using
Vertical
2
as
the
trigger
source.
(12)
Adjust
A16R67
SWP
TIME
for
a
ramp
of
500
msec
(fig.
4)
duration
(R).
(13)
Disconnect
oscilloscope
from
A16TP3
(fig.
3).
(14)
Connect
oscilloscope to
A16TP4
(fig.
3).
Display
should
be
similar
to
figure
4.
Figure
4.
500
mSec
ramp.
(15)
Adjust
A16R68
AUX
(fig.
3)
to
align
the
dc
level
of
the
rest
time
between
each
ramp
with
the
upper
dc
level
of
each
ramp.
Refer
to
RAMP
2
(fig.
5).
Figure
5.
Ramps.
(16)
Disconnect
oscilloscope
from
A16TP4
(fig.
3).
10
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