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R&S FSP
Instrument Functions
Analyzer Mode
4.62
Operating Manual 1164.4556.12 - 06
No marker enabled:
Markers are enabled:
If further markers are enabled during the phase noise measurement, they automati-
cally become delta markers and measure the phase noise at their respective posi-
tions.
When the phase noise measurement is switched off, the marker configuration
remains unchanged and the delta markers measure the relative level to the refer-
ence marker (
MARKER 1
).
The
PHASE NOISE
function measures the noise power at the delta markers
referred to 1 Hz bandwidth. The sample detector is automatically used and the video
bandwidth set to 0.1 times the resolution bandwidth (RBW). The two settings are
taken into account in the correction values used for the noise power measurement.
To obtain stable results, two pixels on the right and the left of the respective delta
marker position are taken for the measurement. The procedure for determining the
noise power is identical to the method used for the noise power measurement (see
NOISE
softkey). The measured noise level referred to 1 Hz bandwidth is subtracted
from the carrier level at the reference marker (
MARKER 1
). The measured values
are displayed in the delta marker field in dBc/Hz (= spacing in dB of the noise power
from the carrier level in 1 Hz bandwidth).
If several delta markers are enabled, only the value read by the active marker is
shown in the marker field. If several delta markers are active, their measurement
results are shown in the marker info field.
The reference value for the phase noise measurement can be defined with
REF
POINT LEVEL
,
REF POINT FREQUENCY
and
REF POINT LVL OFFSET
to differ
from that of the reference marker.
Remote command:
--
PH NOISE
(ON OFF)
The
PH NOISE (ON OFF)
softkey switches on/off the phase noise measurement.
Switching on is performed by means of the
PHASE NOISE
softkey and is only nec-
essary when the phase noise measurement has been switched off in the submenu.
Remote command:
CALC:DELT1:FUNC:PNO ON
CALC:DELT1:FUNC:PNO:RES?
[
MKR FCTN
]
MARKER 1 is enabled and set to peak.
[
PHASE NOISE
]
MARKER 1 becomes the reference marker, MARKER 2 the delta
marker; frequency = frequency of the reference marker. The
delta marker is the active marker, i.e. it can be moved with the
rotary knob or adjusted by entering numerals.
The PHASE NOISE function is switched on and the measured
value is output.
[
MKR FCTN
]
The previous marker configuration remains unchanged.
[
PHASE NOISE
]
MARKER 1 becomes the reference marker. If other markers are
enabled, they become delta markers and measure the phase
noise at their respective positions.
Summary of Contents for R&S FSP Series
Page 1: ...R S FSP Spectrum Analyzer Operating Manual 1164 4556 12 06 Test Measurement Operating Manual ...
Page 24: ...R S FSP Putting into Operation 1 2 Operating Manual 1164 4556 12 06 ...
Page 72: ...R S FSP Manual Operation 3 2 Operating Manual 1164 4556 12 06 ...
Page 793: ...R S FSP Index Operating Manual 1164 4556 12 06 4 11 ...
Page 794: ...R S FSP 4 12 Operating Manual 1164 4556 12 06 ...
Page 795: ...Operating Manual 1164 4556 12 06 4 13 R S FSP ...
Page 796: ...R S FSP 4 14 Operating Manual 1164 4556 12 06 ...