52 Agilent N5181A/82A MXG Signal Generators User’s Guide
Optimizing Performance
Using an Output Offset, Reference, or Multiplier
When measuring mixers, the frequency multiplier and frequency offset are often used together. In the
upconverter example below, the multiplier is set to −1 and the offset is set to 3 GHz so that the
signal generator displays f
RF
.
Mixer
Signal Generator
(local oscillator)
f
LO
= 800 − 600 MHz
f
IF
= 3000 MHz
Selected
Multiplier
−1
−1
Signal Generator
Output (f
LO
)
800 MHz
600 MHz
f
RF
= 2200 - 2400 MHz
Selected
Offset
3000 MHz
3000 MHz
Entered/Displayed
Frequency
(f
RF
)
2200 MHz
2400 MHz
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