MKR FCTN - Analyzer
R&S FSMR
1166.3363.12
4.14-6
E-2
The AUTO PEAK SEARCH softkey activates an automatic peak
search for the reference fixed marker 1 at the end of each
particular sweep.
The phase noise
AUTO PEAK
SEARCH
adds an automatic peak
search action for the reference fixed marker 1 at the end of each
particular sweep. This function may be used for tracking of a drifting
source whilst phase noise measurement. The delta marker 2 which
shows the phase noise measurement result keeps the delta frequency
value. Therefore the phase noise measurement in a certain offset is
valid although the source is drifting. Only when the marker 2 is
reaching the border of the span the delta marker value is adjusted to
be within the span. Choose a larger span in such situations.
IEC/IEEE-bus command:
CALC:DELT:FUNC:PNO:AUTO ON|OFF
Measurement example:
The phase noise of a CW signal at 100 MHz with 0 dBm level is to be measured
at 800 kHz from the carrier
[
PRESET
]
The R&S FSMR is set to the default setting.
[
CENTER
: 100
MHz
]
The center frequency is set to 100 MHz.
[
SPAN
: 2
MHz
]
The span is set to 2 MHz.
[
AMPT
: 0
dBm
]
The reference level is set to 0 dBm.
[
MKR FCTN
]
MARKER 1
is switched on and positioned at the
maximum of the displayed trace.
[
PHASE NOISE
:
The phase noise measurement is switched on. The delta
800
kHz
]
marker is positioned on the main marker and the
measured phase noise value is displayed in the marker
info field. The sample detector is used and the video
bandwidth is set to 3 x RBW. When the phase noise
measurement function is enabled, the entry of the delta
marker frequency is activated. It can be entered directly.
Measurement of the Filter or Signal Bandwidth
Menu
MKR FCTN
:
N dB DOWN
The
N dB DOWN
softkey activates the temporary markers T1 and T2 which are
n dB below the active reference marker. Marker T1 is placed to the left and marker
T2 at the right of the reference marker. The value n can be input in a window.
The default setting is 3 dB.
Span > 0: The frequency spacing of the two temporary markers is indicated
in the marker info field.
Span = 0: The pulse width between the two temporary markers is indicated in
the marker info field.
If, for example, it is not possible to form the frequency spacing for the n dB
value because of the noise display, dashes are indicated instead of a
measured value.
If a negative value is entered than the markers are placed n dB above the
active reference marker. This is then a n dB up function which can be used
for notch filter measurements,
IEC/IEEE-bus command:
CALC:MARK1:FUNC:NDBD:STAT ON | OFF
CALC:MARK1:FUNC:NDBD 3dB
CALC:MARK1:FUNC:NDBD:RES?
CALC:MARK1:FUNC:NDBD:FREQ? 'Span > 0
CALC:MARK1:FUNC:NDBD:TIME? 'Span = 0
Summary of Contents for FSMR
Page 1: ...R S FSMR Measuring Receiver Operating Manual Test Measurement Operating Manual 1313 9723 12 01...
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Page 26: ...Contents Preparing for Operation R S FSMR 1155 5047 12 I 1 2 E 2 Fig 1 1 Front View...
Page 28: ...Front View R S FSMR 1166 3363 12 1 2 E 2 Fig 1 1 Front View...
Page 30: ...Front View R S FSMR 1166 3363 12 1 4 E 2 Fig 1 1 Front View...
Page 32: ...Front View R S FSMR 1166 3363 12 1 6 E 2 Fig 1 1 Front View...
Page 34: ...Front View R S FSMR 1166 3363 12 1 8 E 2 Fig 1 1 Front View...
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Page 130: ...Menu Overview R S FSMR 1166 3363 12 3 42 E 3 Menu Overview another Keys MKR Key...
Page 141: ...R S FSMR Menu Overview 1166 3363 12 3 53 E 3 LOCAL Menu LOCAL...
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Page 376: ...Configuration Setup R S FSMR 1166 3363 12 4 19 28 E 2...
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Page 937: ...Contents Error Messages R S FSMR 1166 3363 12 I 9 2 E 1...