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Table
1.1 -
1994
Specifications (Cont'd)
GATE
TIME
Range
Resolution:
200
pS
to 99.
9S
25.6 us
(TIME
INTERVAL
DELAY
l
—
Range:
200
jjS
to
800
mS
Step
Size:
25.6
jus,
entered
via
keyboard
Accuracy:
± 50
qs
+
0.1%
reading
BASIC
FREQUENCY STANDARD
j
Internal
Frequency:
10
MHZ
Adjustment Range:
±
5
ppm
min.
at
shipment, by
single turn
trimmer
via
rear
panel
Aging:
Initial
1
ppm/month
at
shipment
Long
Term
2
ppm/first year
Temperature
Stability:
±
10
ppm
over
the
range
0°
to
50
°C, referenced
to
25°C
External Standard
Input:
Frequency
10
MHz
Level
Min.,
100
mV
rms; Max.,
10
V
rms
Max.
Input
Level
400V peak
to
500
Hz, decreasing
to
10
V rms
at
30
kHz
and above
Impedance
1
kilohm
(nominal)
for signals
<
IV
p-p,
decreasing
to
500
ohms
(nominal)
for signals
10V
p-p
and
above.
AC
coupled
i
Note:
The
external reference
multiplier
(Option
10)
may
be used
to
lock other
standard
frequencies that are
subharmonics
of
10
MHz.
Internal
Standard Output:
Frequency
10
MHz
Level
^600
mV
p-p
into
50
ohms
1-13
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