HP 8904A - Page 104

2-2
Modulate or Sum the Signals
Adjust Your Oscilloscope
Display .......................................... Channel A
Vol ts/Division ........................................... 1 V
Coupling ................................ dc (High Impedance)
Time/Division
....................................... .0.2 ms
Trigger
........................................... Channel A
Select Chassis Ground
1. Press the blue SHIFT key and the PRESET key on your HP 8904A.
2. Press the blue SHIFT key and then the FLOAT key.
3. Press the 1 key and then the OFF key to reference the
HP 8904A’s circuit ground to chassis ground at Output 1. (Note
that
the FLOAT LED for Output 1 is now off.)
4. Adjust the oscilloscope’s trace position if necessary to center
scale.
Access the
Four Channels
5. Press the 11 1: h.2 t-! t-1 E? 1 C: o t-1 f 112 , softkey.
6. Press the NEXT key to access the Channel A Configuration
display.
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