HP 8904A - Page 106

2-4
Modulate or Sum the Signals
How to Modulate
Channel A
The HP 8904A offers you a wide selection of modulation
possibilities. In this demonstration, you will discover that you can
create many useful signals by simply modulating Channel
A with
one other channel.
Set Up the Carrier
1. Press the FREQ key and enter 20 kHz as the Channel A
frequency.
Note
If you enter a wrong digit, simply press the *= key to backspace,
and then re-enter the correct digit.
2. Press the AMPTD key and enter 2.5V. The 20 kHz, 2.5 Vpk
Channel A signal should now appear on the oscilloscope display.
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