2-34 Measure Menu
Spectrum Analyzer
2-78
PN: 10580-00349 Rev. M
Spectrum Analyzer MG
Emission Mask (In-Band) Menu
Key Sequence:
Shift
>
Measure
(
4
) key
> Masks and C/I
> Emission Mask (In-Band)
This submenu controls the setup and display of the emission mask. 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. Refer to
“Emission Mask (In-Band)” on page 2-30
for more
information.
Emission Mask On/Off:
Turns On/Off the Emission Mask graph and table
display.
Before
turning Emission Mask on, you must have created or recalled
a mask.
With Emission Mask On, the Mask/Limit Line is adjusted up or down based
on the selected Ref Power for every sweep. If the Ref Power is set to 'Peak',
the center segment of the Mask/Limit is moved to match the peak amplitude
of the current trace. If 'Channel' is selected, the center segment of the
Mask/Limit is moved to match the calculated channel power contained in the
current trace.
Recall Limit as Emission Mask:
Opens the recall menu for selecting a limit
line for use as the Emission Mask.
Ref Power Peak/Channel:
Press this submenu key to toggle between the
Peak and Channel 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.
Channel Width:
Channel Width is preset within the Signal Standard. Press
this submenu key, then use the directional arrow keys, rotary knob, or
numeric keypad to adjust the channel width as desired.
Peak Markers On/Off:
Turning on this feature displays a peak marker within
an Emission Mask segment. For example, if the Emission Mask had seven
segments then there would be seven peak markers.
Back:
Returns to the
“Masks and C/I Menu” on page 2-77
.
Figure 2-64.
Emission Mask Menu
Emission Mask
On Off
Peak Markers
On Off
Emission Mask
Back
Recall Limit
as
Emission Mask
Ref Power
Peak Channel
Channel Width
200.000 kHz
Содержание BTS Master
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