Spectrum Analyzer Measurements 3-4 Setting Amplitude Parameters
Spectrum Analyzer MG PN: 10580-00447 Rev. H 3-11
Indications of Excessive Signal Level
The Field Master Series has built-in features to help prevent input overload. These include auto attenuation
and reference level. The instrument will also indicate when a received signal is too high for the current setup
by displaying an “ADC Overrange” notification in the title bar (Figure 3-6). Before proceeding with the
measurements, adjust the reference level, the attenuation level, and disable the preamplifier if necessary.
Adjusting the resolution bandwidth and frequency range may also help when measuring small signals that are
near large signals.
Overpower Warning
The Field Master Series MS2080A/MS2070A and Site Master MS2089A instruments are equipped with an
in-built overpower protection hardware in order to manage considerably high range of input power. If the input
power range exceeds beyond 5 watts, the protection relay gets activated and a notification alert is displayed as
shown in the Figure 3-7. Proceed by removing the high power input source to avoid to damaging the RF
circuitry.
Figure 3-6. ADC Overrange
Figure 3-7. Overpower Warning
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