MEAS - Analyzer R&S ESCI
1166.6004.12 4.162 E-1
ADJUST
SETTINGS
The ADJUST SETTINGS softkey automatically optimizes the
instrument settings for the selected power measurement (see
below).
All instrument settings relevant for a power measurement within
a specific frequency range (channel bandwidth) are optimized
for the selected channel configuration (channel bandwidth,
channel spacing):
• Frequency span:
The frequency span should cover at least all channels to be
considered in a measurement.
For channel power measurements, the frequency span is set
as follows:
(No. of transmission channels - 1) × transmission channel
spacing + 2 x transmission channel bandwidth +
measurement margin
For adjacent-channel power measurements, the frequency
span is set as a function of the number of transmission
channels, the transmission channel spacing, the adjacent-
channel spacing, and the bandwidth of one of adjacent-
channels ADJ, ALT1 or ALT2, whichever is furthest away
from the transmission channels:
(No. of transmission channels - 1) × transmission channel
spacing + 2 × (adjacent-channel spacing + adjacent-channel
bandwidth) + measurement margin
The measurement margin is approx. 10% of the value
obtained by adding the channel spacing and the channel
bandwidth.
• Resolution bandwidth RBW ≤ 1/40 of channel bandwidth
• Video bandwidth VBW ≥ 3 × RBW
• Detector RMS detector
Trace math and trace averaging functions are switched off.
The reference level is not influenced by
ADJUST SETTINGS. It
can be separately adjusted with
ADJUST REF LVL.
The adjustment is carried out only once; if necessary, the
instrument settings can be changed later.
IEC/IEEE-bus command:
SENS:POW:ACH:PRES ACP|CPOW|MCAC|OBW
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