Rohde & Schwarz EMI Test ReceiverESCI - Page 204

Frequency and Span - Analyzer R&S ESCI
1166.6004.12 4.72 E-1
= CENTER
The = CENTER softkey sets the step size coupling to
MANUAL and the step size to the value of the center
frequency. This function is especially useful during
measurements of the signal harmonic content because
by entering the center frequency each stroke of the STEP
key selects the center frequency of another harmonic.
IEC/IEEE-bus command: --
= MARKER
The = MARKER softkey sets the step size coupling to
MANUAL and the step size to the value of the marker.
This function is especially useful during measurements of
the signal harmonic content at the marker position
because by entering the center frequency each stroke of
the STEP key selects the center frequency of another
harmonic.
IEC/IEEE-bus command: --
MANUAL
The MANUAL softkey activates the window for entering a
fixed step size.
IEC/IEEE-bus command:
FREQ:CENT:STEP 120MHz
START
The START softkey activates the window for manually entering the start
frequency.
The allowed range of values for the start frequency is:
0 Hz ≤f
start
≤f
max
- minspan
f
start
start frequency
minspan smallest selectable span (10 Hz)
f
max
max. frequency
IEC/IEEE-bus command: FREQ:STAR 20MHz
STOP
The STOP softkey activates the window for entering the .
The allowed range of values for the stop frequency is:
minspan ≤f
stop
≤f
max
f
stop
stop frequency
minspan smallest selectable span (10 Hz)
f
max
max. frequency
IEC/IEEE-bus command: FREQ:STOP 2000MHz