Operating Manual 1302.6163.12 - 03
4.181
R&S ESU
Instrument Functions
Analyzer Mode
As of firmware version 4.4x it is possible to customize ACP User Standards. The
user defined ACP standard can be activated via the entry
USER
in the standard
selection list. The related configuration file is displayed in brackets. To select
another user defined standard, use the softkey
SELECT USER STD
.
Remote command:
CALC:MARK:FUNC:POW:PRES <standard>
CALC:MARK:FUNC:POW:PRES <file name>
CP/ACP
CONFIG
See following section
“Setting the Channel Configuration” on page 4.185
SET CP
REFERENCE
With channel power measurement activated, the
SET CP REFERENCE
softkey
defines the currently measured channel power as the reference value. The refer-
ence value is displayed in the
CH PWR REF
field; the default value is 0 dBm.
The softkey is available only for multi carrier ACP measurements.
In adjacent-channel power measurement with one or several carrier signals, the
power is always referenced to a transmission channel, i.e. no value is displayed for
CH PWR REF
.
Remote command:
SENS:POW:ACH:REF:AUTO ONCE
SWEEP TIME
The
SWEEP TIME
softkey activates the entry of the sweep time. With the RMS
detector, a longer sweep time increases the stability of the measurement results.
The function of the softkey is identical to the softkey
SWEEP TIME MANUAL
in the
BW
menu.
Remote command:
SWE:TIME <value>
NOISE CORR
ON | OFF
If the
NOISE CORR ON/OFF
softkey is activated, the results will be corrected by the
instrument's inherent noise, which increases the dynamic range.
When the function is switched on, a reference measurement of the instrument's
inherent noise is carried out. The noise power measured is then subtracted from the
power in the channel that is being examined.
The inherent noise of the instrument depends on the selected center frequency, res-
olution bandwidth and level setting. Therefore, the correction function is disabled
whenever one of these parameters is changed. A disable message is displayed on
the screen.
To enable the correction function in conjunction with the changed setting, press the
softkey once more. A new reference measurement is carried out.
Remote command:
SENS:POW:NCOR ON
FAST ACP
ON | OFF
The
FAST ACP ON/OFF softkey
switches between the IBW method (
FAST ACP
OFF
) and the time domain method (
FAST ACP ON
).
With
FAST ACP ON
the power measurement is performed in the different channels
in the time domain. The R&S ESU sets the center frequency consecutively to the dif-
ferent channel center frequencies and measures the power with the selected mea-
surement time (= sweep time/number of channels). The RBW filters suitable for the
selected standard and frequency offset are automatically used (e.g. root raised cos
with IS 136).
A list of available filters is included in section
Содержание ESU Series
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Страница 27: ...R S ESU Putting into Operation 1 2 Operating Manual 1302 6163 12 03...
Страница 29: ...R S ESU Getting Started 2 2 Operating Manual 1302 6163 12 03...
Страница 31: ...R S ESU Manual Operation 3 2 Operating Manual 1302 6163 12 03...
Страница 349: ...R S ESU Instrument Functions Basic Settings 4 318 Operating Manual 1302 6163 12 03...
Страница 405: ...R S ESU Instrument Functions User Port 4 374 Operating Manual 1302 6163 12 03...
Страница 439: ...R S ESU Remote Control Basics Status Reporting System 5 34 Operating Manual 1302 6163 12 03...
Страница 821: ...R S ESU Remote Control Programming Examples More Complex Programming Examples 7 32 Operating Manual 1302 6163 12 03...
Страница 841: ...R S ESU Error Messages Device Specific Messages 9 10 Operating Manual 1302 6163 12 03...
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