2-10 Preamplifier Measurement Example Spectrum Analyzer
2-14 PN: 10580-00349 Rev. H Spectrum Analyzer MG
2-10 Preamplifier Measurement Example
The preamplifier can be turned on and off by pressing the Amplitude main menu key, then
selecting the Preamp On/Off submenu key.
Figure 2-9 shows the noise floor with the preamplifier off (green trace) and on (yellow trace).
Notice that when the preamplifier is turned on, the noise floor drops significantly.
2-11 Field Measurements
In Spectrum Analyzer mode, smart one-button measurements are built-in for field strength,
occupied bandwidth, channel power, adjacent channel power ratio, emission mask, and
carrier to interference ratio (C/I) tests. In addition, AM/FM/SSB demodulation is available to
aid in the identification of interfering signals. The following sections present brief examples
demonstrating the use of these measurements.
Figure 2-9. Preamplifier On and Off
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