HP 8904A - Page 124

2-22 Modulate or Sum the Signals
A
B
C
D
How to Sef
The following application examples show some of the waveforms that
you can create using the HP 8904A’s Four Channel operating
up Some capabilities.
Applications
out 1 38 kHz 140 pV 0.0 deg
Sine
DSB
1 kHz 2.5V 0.0 deg Sine
out 1 1 kHz 2.5V 0.0 deg
Sine
out 1
19 kHz
0.3V 90.0 deg Sine
FM Stereo
Composite Signal
r i I I I I I I I
b ,f I
I I t
I I f I 1 f I I 1
Application:
Testing FM Stereo Receivers
Table 2-6. Instrument Settings for the FM Stereo Composite Signal.
Comments:
1. Adjust the amplitude of Channel D to vary the pilot signal
level.
2. DSB is Double-Sideband Suppressed-Carrier AM.
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