Emission Mask (In-Band) Menu - Anritsu BTS Master Manual

Interference Analyzer (Option 25)

Emission Mask (In-Band) Menu

Key Sequence: Measurements > Spectrum > Masks and C/I > Emission Mask (In-Band)
Emission Mask
Emission Mask
On Off
Recall Limit
as
Emission Mask
Ref Power
Peak Channel
Channel Width
200.000 kHz
Peak Markers
On Off
Back
Figure 3-45. IA Emission Mask Menu
Spectrum Analyzer MG
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
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
PN: 10580-00349 Rev. M
"Masks and C/I Menu" on page
3-15 Measurements Menu
for more
3-50.
3-51