HP 8590 L-Series User Manual

44
REF
PEAK
LOG
10
dB/
0 dBm ATTEN 10 dB
I I
CENTER 300 00
CENTER 300 00 MHz
MHz SPAN 20.00SPAN 20.00 MHzMHz
#RES BW 1
#RES BW 1 MHZ
MHZ VBWVBW 300 kHz 300 kHz SW 20 msec SW 20 msec
Figure 3-26. Viewing an AM SignalFigure 3-26. Viewing an AM Signal
3. To demodulate the AM, press [Bw). Increase the resolution bandwidth to include both
sidebands of the signal within the passband of the spectrum analyzer.
4. Next, position the signal peak near the reference level and select a linear voltage display.
Press [AMPLITUDE] and change the reference level, then press SCALE LOG LIN to underline
LIN.
5. To select zero span, either press (SPAN), 0 IHz) or press ZERO SPAN . See Figure 3-27. If
the modulation is a steady tone (for example, from a signal generator), use video trigger
to trigger on the waveform and stabilize the display. Adjust the sweep time to change the
horizontal scale.
Use markers and delta markers to measure time parameters of the waveform.
4
REF dd 61 mV ATTEN 10 dB
CENTER 300 000 MHZ SPAN 0 HZ
XRES BW i MHz VBW 300 kHz SWP 20 msec
Figure 3-27. Measuring Modulation in Zero Span
Making Basic Measurements 3-25

HP 8590 L-Series Specifications

General

Brand	HP
Model	8590 L-Series
Category	Measuring Instruments
Language	English