Operating instructions

Specification---71387
Trigger Holdoff Time
Minimum
Holdoff Setting
5 s/Div to
1 us/Div
0 .5 u/Div to 10 ns/Div
Triggering Sensitivity
from Repetitive Signal
(Auto, Norm and Single Sweep Modes)
Coupling
AC
AC LF REJ 3
AC
HF REJ
DC 4
Internal Trigger Jitter
External
Trigger Input
Maximum Input Voltage
EXT
_
10
Input R and C
Level Range (Excluding P-P AUTO)
EXT~-~1
P-P AUTO Operation Sensitivity (AC or
DC Coupling)
Low Frequency Response
TABLE 2-1 (CONT)
Electrical Characteristics
PerformanceRequirement
SWEEP GENERATOR (CON
2 times TIME/DIV setting or less .
2 .0 Ns or less .
Extends holdoff time through at least 2 sweep lengths
for
sweep rates of 20 ms/div or faster .
TRIGGERING
Triggering
Frequency
Range 2
30 Hz to50MHz
50 MHz to 400 MHz
30 kHz to 50 MHz
50 MHz to400MHz
30 Hz to 50 kHz
Dc
to 50
MHz

0 .3
div
50 -
MHz T to ^ 400
-
MHz

1 .5 div
0 .1 ns or less at 400 MHz .
250
V
(dc plus peak ac) .
1
MQ
within
5%, 20 pF
within
10% .
(Checked on 1 kHz sine wave .)
At least + and -1
.5
volts .
__
At least + and -15 volts .
Minimum Triggering
Signal Required
External
50 mV
250 mV
50 mV
250 mV
2 The triggering frequency
ranges given here are limited to the -3 de frequency
of the oscilloscope vertical system (mainframe and
amplifier unit)
when operating from
an internal source .
'Will not trigger on sine
waves at or below 60 Hz when amplitudes
are less than 8 divisions internal or 3 volts external
.
'The
Triggering Frequency Range for DC COUPLING applies to frequencies above 30 Hz when operating in the AUTO TRIGGERING MODE .
Triggering I
Frequency
Range
Minimum
Signal
Triggering
Required
Internal I External
200 Hz to 50 MHz 0 .5 div 125
mV
50 MHz to 400 MHz mm 1 .5 div 375 mV
- At least 50 a Hz~~~ M - 2 .0 div 500 mV