Keysight Technologies N9321C, User Manual

Page: 137 / 220

129
Key Reference
Meas
Offset/Limits
Displays the menus to change the following parameters for offset
frequency settings and pass/fail tests:
Offset
,
Start Freq
,
Stop Freq
,
Sweep Time
,
Res BW
, and
Limits
.
Refer to the tables below for
default settings of particular radio standards of interest.
Key access:
Meas > Spectrum Emission Mask
a.
Fail Mask
is set to
Absolute
and
Rel Stop
is set to
Couple
.
Res BW
Auto Man
Specifies the resolution bandwidth used in measuring
and the power in the main channel.
Total Pwr Ref
(PSD Ref)
Auto Man
Displays the type of power measurement reference
selected by
Measure Type.
Total Pwr Ref
is the power in the carrier that is used as
the reference in computing the relative power values
for the offsets. When
Man
is selected, this can be set
by the user. When
Auto
is selected, this is the
measured power in the reference carrier.
PSD Ref
is the mean power spectral density in the
carrier that is used as the reference in computing the
relative power spectral density values for the offsets.
When
Man
is selected, this can be set by the user.
When
Auto
is selected, this is the measured mean
power spectral density in the reference carrier.
Key access:
Meas > Spectrum Emission Mask > Ref
Channel
Table 2 Offsets & Limits Defaulted for W-CDMA (3GPP) Base Station Measurements
a
Offset Start
Freq
(MHz)
Stop
Freq
(MHz)
Res BW
(kHz)
Abs
Start
(dBm)
Abs
Stop
(dBm)
Abs
Couple
Rel
Start
(dBc)
Rel Stop
(dBc)
Meas
BW
A. On 2.515 2.715 30.00 -14.00 -14.00 Couple -30.00 -30.00 1
B. On 2.715 3.515 30.00 -14.00 -26.00 Man -30.00 -30.00 1
C. On 3.515 4.000 30.00 -26.00 -26.00 Couple -30.00 -30.00 1
D. On 4.000 8.000 1000.00
30.00
-13.00 -13.00 Couple -30.00 -30.00 1
33
E. On 8.000 12.500 1000.00 -13.00 -13.00 Couple -30.00 -30.00 1