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Set the trigger:
SMART (COMPLEX)
Source:
Coupl:
Mode:
Delay
Level
Set input CHI:
Coupl:
Gain:
Var
Gain:
Offset:
Trigger: OFF
CHI
HF
NORM
zero
zero
50 Q
lV/div
1
zero
Set the time base:
-Time/div
.5
ysec/div
-Interleaved
ON
Bandwidth
limit:
OFF
Adjust
the
generator
output
amplitude
and CHI
offset
to
get
a
5
division
p-p sine wave, or maximum possible from
the
generator
for the
large V/div gains (Marconi 2.8 V p-p maximum).
Increase
the
generator frequency, while decreasing
the
Time/div until
the
sine wave p-p amplitude
is
.7*5
divisions
=3.5
divisions
(3
dB
point), or 70% of the initial amplitude at
.5
MHz.
Check:
-
the
frequency
of the
generator must
be at least 350 MHz
Repeat
the
above
for
CHI and CH2
for input
Volts/div
= .5 V,
.2 V,
.IV,
50
mV,
20mV, 10
mV, 5 mV.
Set the
bandwidth limiter
ON.
Repeat
the
same
test as for the
bandwidth limiter
OFF.
Check:
-
the
frequency of
the
generator
at the
3
dB point must be 70 MHz
±
20%
11
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