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Set the amplitude to +10 dBm
You can do this by keying AMPL, 1, 0, dBm.
The display will now look like this:
PER =80.00000us
OUT =+10.0dBm
DC=+0.00mV (+0.00mV)
SYM=50.0% (50.0%)
If you switch the amplitude display back to VhiZ you
should see:
PER =80.00000us
VhiZ=+4.00 Vpp
DC=+0.00mV (+0.00mV)
SYM=50.0% (50.0%)
If you are using a 50 Ω termination on the oscilloscope
input then the signal amplitude will be half the displayed
value, 2 V p-p.
50Ω
50Ω
Have a look at some other waveforms
Using the function keys you can select any of the
waveforms and observe them on the oscilloscope display.
Change the dc offset
If the output is still set to 4 V p-p then with the dc offset in
the fractional millivolts range you will not be able to see
changes on the oscilloscope, so the first thing to do is to
force a range change.
Do this by pressing the DC OFFSET key and entering
(say) 1.5 V.
You can then use the rotary control to adjust the waveform
offset in steps which depend on the cursor position. For
smoother control press the right DIGIT key.
PER =80.00000us
VhiZ=+4.00 Vpp
DC=+1.50 V (+1.50 V)
SYM=50.0% (50.0%)
Note that with the cursor placed as shown, pressing the
+/- key will change the polarity of the offset voltage.
Getting Started
Using the Instrument
50Ω
13
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