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Making Measurements
Example 11: Time-Gated Measurement
Instrument configurations for the measurement are:
Pulse Generator: Agilent 8112A or equivalent
Instrument Connections
Pulse period
Mode
Pulse width
High level (HIL)
Waveform
Low level (LOL)
Delay
Amplitude
Offset
Signal Generator: Agilent 8642A or equivalent
Instrument Connections
Frequency
Amplitude
AM
PULSE
FM
FM MOD SOURCE
MOD
FREQUENCY
RF
Spectrum Analyzer Settings
Instrument Connections
Center frequency
Span
Reference level
Sweep time
Resolution
bandwidth
138
5 ms (or pulse frequency equal to 200 Hz)
norm
4 ms
5 V
pulse
0 V
0 or minimum
5 V
2.5 V
40 MHz
0 dBm
OFF
ON, modulation source set to EXT DC
ON, 1 kHz deviation
INT
100 kHz
ON
40 MHz
500 kHz
0 dBm
3.1 s
3 kHz
Chapter 2
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