SEM Results (Spectral Emissions Mask)

The SEM Results table shows power measurement information about Offsets configured for the Spectral Emissions Mask measurement. When measurement averaging is enabled, the values in SEM Results are computed from the averaged detected spectrum data. See the SEM Spectrum Trace Data Block Diagram and Detectors and Power Spectrum Analysis for more information.

SEM Results is a type of Matrix Table that provides sortable rows by column, selectable column visibility, and copy/paste and export functionality to share rows of content or complete tables to applications like email, text editing or spreadsheet programs.

									Not visible by default To make visible, right-click any column heading and select Column Visibility...						Not visible by default To make visible, right-click any column heading and select Column Visibility...
Offset identifies the offset for the row (corresponds to offsets configured in the Offsets & Limits parameter tab).	Start Frequency indicates the beginning of the frequency region used for evaluating the offset power. The frequency is presented relative to the Carrier Reference Frequency. Lower offset evaluation is below the Carrier Reference Frequency and Upper offset evaluation is above Carrier Reference Frequency.	Stop Frequency indicates the end of the frequency region used for evaluating the offset power. The frequency is presented relative to the Carrier Reference Frequency. Lower offset evaluation is below the Carrier Reference Frequency and Upper offset evaluation is above Carrier Reference Frequency.	Integ BW is the -3 dB resolution bandwidth used for the offset power measurements, as defined by Offset parameters.	Lower ∆Limit is the power difference between the measured spectrum at the Lower Location and the enabled power limit mask defined for the Lower offset. The value will be positive when the measured power exceeds the power limit mask.	Lower (Rel.) is the power measured at the Lower Location relative to the defined Power Reference. The result units and availability depends on Reference Power Selection (dBc deciBels referenced to the carrier: A technique for expressing a power measurement in logarithmic form using the carrier power as a reference. for Integrated Power, dB for Spectrum Peak, and result unavailable for PSD Power Spectral Density: See power spectral density.).	Lower is the power measured at the Lower Location. The result units depend on Reference Power Selection (dBm for Integrated Power and Spectrum Peak, and dBm/Hz for PSD).	Lower Location is the spectrum location within the defined Offset (Lower) where the measured power is largest, relative to any enabled power limit mask.	Lower Status indicates the Lower Offset limit test result (Pass, Fail, or Not Tested).	Lower (Ref.) is the Lower Location's reference power such that Lower (Ref.) + Lower (Rel.) = Lower. Units are dBm/Hz when Reference Power Selection is PSD.	Lower Reference Carrier indicates which carrier is used for the power reference calculation. This result is useful when multiple carriers are enabled.	Upper ∆Limit is the power measured at the Upper Location relative to the defined Power Reference. The result units and availability depends on Reference Power Selection (dBc for Integrated Power, dB for Spectrum Peak, and result unavailable for PSD).	Upper (Rel.) is the power measured at the Upper Location relative to the defined Power Reference. The result units and availability depends on Reference Power Selection (dBc for Integrated Power, dB for Spectrum Peak, and result unavailable for PSD).	Upper is the power measured at the Upper Location. Units are dBm/Hz when Reference Power Selection is PSD. The result units depend on Reference Power Selection (dBm for Integrated Power and Spectrum Peak, and dBm/Hz for PSD).	Upper Location is the spectrum location within the defined Offset (Upper) where the measured power is largest, relative to any enabled power limit mask.	Upper Status indicates the Upper Offset limit test result (Pass, Fail, or Not Tested).	Upper (Ref.) is the Upper Location's reference power such that Upper (Ref.) + Upper (Rel.) = Upper. Units are dBm/Hz when Reference Power Selection is PSD.	Upper Reference Carrier indicates which carrier is used for the power reference calculation. This result is useful when multiple carriers are enabled.

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Offset

Start Frequency (Hz)

Stop Frequency (Hz)

Integ BW (Hz)

Lower ∆Limit (dB)

Lower (dB)

Lower (dBm deciBels referenced to a milliWatt: dB relative to 1 milliwatt dissipated in the nominal input impedance of the analyzer)

Lower Location (Hz)

Lower Status

Lower (Ref.) (dBm)

Lower Reference Carrier

Upper ∆Limit (dB)

Upper (dB)

Upper (dBm)

Upper Location (Hz)

Upper Status

Upper (Ref.) (dBm)

Upper Reference Carrier

Offset identifies the offset for the row (corresponds to offsets configured in the Offsets & Limits parameter tab).

Start Frequency indicates the beginning of the frequency region used for evaluating the offset power. The frequency is presented relative to the Carrier Reference Frequency. Lower offset evaluation is below the Carrier Reference Frequency and Upper offset evaluation is above Carrier Reference Frequency.

Stop Frequency indicates the end of the frequency region used for evaluating the offset power. The frequency is presented relative to the Carrier Reference Frequency. Lower offset evaluation is below the Carrier Reference Frequency and Upper offset evaluation is above Carrier Reference Frequency.

Integ BW is the -3 dB resolution bandwidth used for the offset power measurements, as defined by Offset parameters.

Lower ∆Limit is the power difference between the measured spectrum at the Lower Location and the enabled power limit mask defined for the Lower offset. The value will be positive when the measured power exceeds the power limit mask.

Lower (Rel.) is the power measured at the Lower Location relative to the defined Power Reference. The result units and availability depends on Reference Power Selection (dBc deciBels referenced to the carrier: A technique for expressing a power measurement in logarithmic form using the carrier power as a reference. for Integrated Power, dB for Spectrum Peak, and result unavailable for PSD Power Spectral Density: See power spectral density.).

Lower is the power measured at the Lower Location. The result units depend on Reference Power Selection (dBm for Integrated Power and Spectrum Peak, and dBm/Hz for PSD).

Lower Location is the spectrum location within the defined Offset (Lower) where the measured power is largest, relative to any enabled power limit mask.

Lower Status indicates the Lower Offset limit test result (Pass, Fail, or Not Tested).

Lower (Ref.) is the Lower Location's reference power such that Lower (Ref.) + Lower (Rel.) = Lower. Units are dBm/Hz when Reference Power Selection is PSD.

Lower Reference Carrier indicates which carrier is used for the power reference calculation. This result is useful when multiple carriers are enabled.

Upper ∆Limit is the power measured at the Upper Location relative to the defined Power Reference. The result units and availability depends on Reference Power Selection (dBc for Integrated Power, dB for Spectrum Peak, and result unavailable for PSD).

Upper (Rel.) is the power measured at the Upper Location relative to the defined Power Reference. The result units and availability depends on Reference Power Selection (dBc for Integrated Power, dB for Spectrum Peak, and result unavailable for PSD).

Upper is the power measured at the Upper Location. Units are dBm/Hz when Reference Power Selection is PSD. The result units depend on Reference Power Selection (dBm for Integrated Power and Spectrum Peak, and dBm/Hz for PSD).

Upper Location is the spectrum location within the defined Offset (Upper) where the measured power is largest, relative to any enabled power limit mask.

Upper Status indicates the Upper Offset limit test result (Pass, Fail, or Not Tested).

Upper (Ref.) is the Upper Location's reference power such that Upper (Ref.) + Upper (Rel.) = Upper. Units are dBm/Hz when Reference Power Selection is PSD.

Upper Reference Carrier indicates which carrier is used for the power reference calculation. This result is useful when multiple carriers are enabled.