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2-21 Emission Mask (In-Band) Spectrum Analyzer
2-30 PN: 10580-00349 Rev. M Spectrum Analyzer MG
2-21 Emission Mask (In-Band)
The emission mask is a segmented upper limit line that will display frequency range, peak
power and frequency, relative power, and pass/fail status for each segment of the mask. The
emission mask must have at least two segments.
1. Create or recall a multi-segment limit line or envelope to use as an emission mask.
Refer to
Section 2-36 “Limit Menu” on page 2-95 for details on the Limit menu.
2. Press the
Shift
key followed by the
Measure
(
4
) key. Then press the
Masks and C/I
submenu key, and then the
Emission Mask (In-Band)
submenu key.
3. Press the
Ref Power Peak/Channel
submenu key to toggle between the two settings.
When
Peak
is selected, the mask is moved up or down so that the mask value at the
center frequency is the same as the peak value of the trace. When
Channel
is selected,
the reference power value is the same as would be calculated by the
Channel Power
measurement, over the defined channel width; in this case, the mask value at the
center frequency is moved to the channel power measurement result.
4. Press the
Emission Mask On/Off
submenu key to turn Emission Mask
On
.
5. The table at the bottom of the screen displays the pass/fail status of each Emission
Mask segment.
Figure 2-17. Emission Mask (In-Band)