User`s guide

5Key Reference
104 N9340B User’s Guide
• Chan Span
Key access: [MEAS] > {SEM} > {Ref Channel}
Specifies the span used in measuring the power
in the main channel.
• Sweep Time
Key access: [MEAS] > {SEM} > {Ref Channel}
Specifies the sweep time used in measuring the
power in the main channel.
• Tot al Pw r R ef
Key access: [MEAS] > {SEM} > {Ref Channel}
Tot al Pw r R ef 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.
Offset/Limits
Key access: [MEAS] > {SEM}
Displays the menus where you can 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.
Table 1 Offsets & Limits Defaulted for W-CDMA (3GPP)
Base Station Measurements
a
a. Fail Mask is set to Absolute and Rel Stop is set to Couple.
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 -13.00 -13.00 Couple -30.00 -30.00 1
E. On 8.000 12.500 1000.00 -13.00 -13.00 Couple -30.00 -30.00 1