R&S ESU Series - Page 179

R&S ESU Instrument Functions
Analyzer Mode
4.148 Operating Manual 1302.6163.12 - 03
Switching the SIGNAL COUNT function off is accomplished by pressing the softkey
again.
Remote command: CALC:MARK1:COUN ON;
CALC:MARK:COUN:FREQ?
The resolution of the frequency counter is set in the NEXT menu of the MARKER
menu. R&S ESU offers counter resolutions between 0.1 Hz and 10 kHz.
REFERENCE
FIXED
The REFERENCE FIXED softkey defines the level and the frequency or time of
MARKER 1 as a reference for one or several delta markers. The measured values
for one or several markers displayed in the marker info field are derived from this
reference point instead of the current values of the reference marker (MARKER 1).
On actuating the softkey, reference fixed is switched on and thus, the level value
and the frequency, time or x-level value of MARKER 1 immediately become the ref-
erence point.
Additionally, the REFERENCE FIXED softkey opens the submenu where it is possi-
ble to determine manually a reference point with level and frequency, time or x-axis
level, to define a level offset or deactivate the reference point.
The REFERENCE FIXED function is useful for the measurement of the harmonic
suppression at small span (fundamental not represented).
REF FXD
ON | OFF
The REF FXD ON/OFF softkey switches on or off the relative measurement to a
fixed reference value (REFERENCE POINT) independent of the trace.
Remote command: CALC:DELT2:FUNC:FIX ON
REF POINT
LEVEL
The REF POINT LEVEL softkey enters a reference level independent of the refer-
ence marker level. All relative level values of the delta markers refer to this refer-
ence level.
Remote command: CALC:DELT2:FUNC:FIX:RPO:Y -10dBm
REF POINT LVL
OFFSET
The REF POINT LVL OFFSET softkey specifies a level offset relevant to the refer-
ence level. The relative level values of the delta markers refer to the reference point
level plus the level offset.
The level offset is set to 0 dB on enabling the REFERENCE FIXED or PHASE
NOISE function.
Remote command: CALC:DELT2:FUNC:FIX:RPO:Y:OFFS 0dB
REF FXD ON | OFF
REF POINT LEVEL
REF POINT LVL OFFSET
REF POINT FREQUENCY
REF POINT TIME
PEAK SEARCH