Solving Problems
If You Encounter a Problem
Chapter 4 77
RF Output Power too Low
1. Look for an OFFS or REF indicator in the AMPLITUDE area of the display.
OFFS tells you that an amplitude offset has been set. An amplitude offset changes the value
shown in the AMPLITUDE area of the display but does not affect the output power. The
amplitude displayed is equal to the current power output by the signal generator
hardware plus the value for the offset.
To eliminate the offset, do the following:
Press
Amplitude > More (1 of 2) > Ampl Offset > 0 > dB.
REF tells you that the amplitude reference mode is activated. When this mode is on, the
displayed amplitude value is not the output power level. Rather, it is the current power
output by the signal generator hardware minus the reference value set by the
Ampl Ref Set
softkey.
To exit the reference mode, follow these steps:
a. Press
Amplitude > More (1 of 2).
b. Press
Ampl Ref Off On until Off is highlighted.
You can then reset the output power to the desired level.
2. If you are using the signal generator with an external mixer, see “Signal Loss Occurs
While Working with Mixers” on page 78.
3. If you are using the signal generator with a spectrum analyzer, see “Signal Loss Occurs
While Working with Spectrum Analyzers” on page 80.
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