R&S ESU Instrument Functions
IF Spectrum Analysis Mode
4.86 Operating Manual 1302.6163.12 - 03
Example:
A spectrum is displayed with a large span after PRESET. A signal off the center is to
be examined in detail:
NEXT PEAK
The NEXT PEAK softkey sets the active marker/delta marker to the next lower peak
value on the trace.
For further information refer to the descriptions in section “Receiver Mode” – “NEXT
PEAK” on page 4.66.
NEXT PEAK
RIGHT
The NEXT PEAK RIGHT softkey sets the active marker/delta marker to the next
lower peak value to the right side of the current marker position on the selected
trace.
For further information refer to the descriptions in section “Receiver Mode” – “NEXT
PEAK RIGHT” on page 4.66.
NEXT PEAK
LEFT
The NEXT PEAK LEFT softkey sets the active marker/delta marker to the next lower
peak value to the left side of the current marker position on the selected trace.
For further information refer to the descriptions in section “Receiver Mode” – “NEXT
PEAK LEFT” on page 4.66.
SEARCH
LIMITS
The SEARCH LIMITS softkey limits the search range for maximum or minimum
search. The softkey switches to a submenu in which the search range limits can be
set in the x and y direction.
LEFT LIMIT
RIGHT LIMIT
The LEFT LIMIT and RIGHT LIMIT softkeys define the two vertical lines F1 and F2
in the frequency domain (span > 0) and T1 / T2 in the time domain (span = 0).
For further information refer to the descriptions in section “Receiver Mode” – “LEFT
LIMIT RIGHT LIMIT” on page 4.68.
THRESHOLD The THRESHOLD softkey defines the threshold line.
For further information refer to the descriptions in section “Receiver Mode” –
“THRESHOLD” on page 4.68.
[PRESET] R&S ESU is set to the default setting.
[MKR->] MARKER 1 is switched on and automatically jumps
to the largest signal of the trace.
[CENTER=MKR FREQ] The center frequency is set to the marker frequency.
The span is adapted in such a way that the minimum
frequency (= 0 Hz) or the maximum frequency is not
exceeded.
[SPAN] The span can, for example, be reduced using the
rotary knob.
LEFT LIMIT RIGHT LIMIT
THRESHOLD
SEARCH LIMIT OFF
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