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NOTE:
The
data
refers
equally
to
9902 and 9906
except
where
indicated
otherwise
.
1
.
GENERAL
Model 9902
is
a
6
digit
50
MHz
Autoranging
Universal
Counter Timer.
Model 9906
is
an
8
digit
200
MHz
Manual
version
with consequent extended ranges on
all
measuring
functions.
2.
MEASURING FUNCTIONS
Modes
of
operation:
9902:
Frequency (Manual), Frequency
(Autoranging), Single
and
Multiple
Period,
Single
and Multiple
Ratio,
Single
and Double
Line
Time
Interval,
Single
and Double
Line
Time
Interval
Averaging;
Totalizing.
9906:
Frequency (Manual),
Single
and
Multiple
Period, Single
and Multiple
Ratio,
Single
and Double
Line
Time
Interval,
Single
and Double
Line
Time
Interval
Averaging,
Totalizing.
3.
DISPLAY
Format:
9902:
Six
digit in-line,
I.e.d.
seven segment
display.
Decimal
point
automatically
positioned.
9906:
Eight
digit in-line,
I.e.d.
seven segment
display.
Decimal
point
automatically
positioned.
Latch:
The
display
is
latched
for
Frequency,
Period
and
Ratio
measurement and
automatically unlatched
in all
other
modes.
LED
indicators:
Refer
to the
descriptions on
page 3-4.
9902
&
9906
Vol
.
1
Tech. Spec.
(1)
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