4 - 54
PERFORMANCE TEST
-
Adjust the generator signal to an amplitude of exactly 6 divisions.
-
Connect the rear side output Y-OUT via a coaxial cable with the CH2 input.
Use external 50
Ω
termination at the CH2 input. Use the internal termination of
the oscilloscope, when available (if active, the text ‘LZ’ is visible in the lower
part of the viewing area).
-
Switch CH2 to on and CH1 to off.
-
Put CH2 in 10 mV/div.
Requirement:
Check for a vertical amplitude of the 50 kHz sine-wave signal between 5.3 .. 6.7
divisions.
Settings/procedure:
-
Adjust the 50 kHz sine-wave signal to an amplitude of exactly 6 divisions.
-
Slowly increase the frequency of the generator to 60 MHz (PM3370B) or 100
MHz (PM3380B/84B) or 200 MHz (PM3390B/94B).
Requirement:
Verify that the displayed sine-wave does not drop below an amplitude of 3
divisions across the frequency range 50 kHz .. full bandwidth. The observed
bandwidth curve is that of CH1 and CH2 in cascade.
EXT TRIGger input
Test equipment:
-
Fluke 5500A mode: levsine (Alternative: constant amplitude sine-wave
generator SG503).
-
Power splitter.
Test set up: