Anritsu 3GPP, Руководство по измерениям

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5-10 Amplitude Menu LTE Signal Analyzer
5-30 PN: 10580-00234 Rev. Y 3GPP MG
5-10 Amplitude Menu
Key Sequence:
Amplitude
Scale: Press this submenu key to change the scale of the y-axis in the
RF measurement displays. The range of the scale can be set from 1 dB/div
to 15 dB/div in steps of 1 dB/div.
Power Offset: Enter the power offset to automatically adjust for the loss or
gain through any external cables, attenuators and couplers. The power can
be offset from 0 dB to 100 dB in either direction. Press the Power Offset key,
then enter a value using the arrow keys, rotary knob, or numeric keypad.
Note: When using the keypad, the submenu keys will change to Units keys
(dB) of External Loss and External Gain, as illustrated on the left, below the
Amplitude menu. Enter a value, then press the appropriate Units key to
make your selection. A negative offset value in external gain equates to the
same amount of external loss. For example, entering –1.0 dB in Ext Gain is
the same as 1.0 db of Ext Loss.
Auto Range: Press this submenu key to toggle the Auto Range function
between On and Off. When set to On, the instrument adjusts the reference
level automatically for each sweep.
Adjust Range: Press this submenu key to perform a single reference level
adjustment. Auto Range is automatically turned Off.
Units: Press this submenu key to set the units for all measurements and
summary tables in either dBm or Watts.
Figure 5-23. LTE Amplitude Menu
Amplitude
Power Offset
0.0 dB Ext Loss
Auto Range
On Off
Adjust
Range
Scale
10 dB/div
Units
dBm Watts
Units
dB
External Gain
dB
External Loss
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