Keysight x-series Programmer's Reference

3 VMA Mode
3.2 Custom OFDM Measurement
Models with Option Conditions Selection
between tuning speed and phase
noise, giving good tuning speed at all
offsets. Although not as good as for
"Best Close-in" on page 540; this is
useful when you have to look across a
wide range of spans
(available, for example, in MXA for
excellent phase noise)
Span > 22 MHz, or
RBW > 400 kHz, or
CF ≤ 12 MHz and Span < 495 kHz and
RBW < 23 kHz
"Fast Tuning" on
page 541
All other conditions "Best Wide-
offset" on page
541
EP4
(available in CXA for improved phase
noise)
Span > 101 MHz or
RBW > 1.15 MHz or
Source Mode is set to “Tracking”
"Fast Tuning" on
page 541
CF is < 109 kHz or
CF >= 4.95 MHz and Span <= 666kHz
and RBW < 28 kHz
"Best Close-in"
on page 540
All other conditions "Best Wide-
offset" on page
541
All Other Models
Note that in these models, the
hardware does not actually provide for
an extra-fast tuning option, so the
settings for "Fast Tuning" on page 541
are actually the same as "Best Close-
in" on page 540, but the rules are
implemented this way so that the user
who doesn't care about phase noise
but does care about tuning speed
doesn't have to remember which of
the other two settings gives faster
tuning
Span > 12.34 MHz, or
RBW > 250 kHz, or
Source Mode is set to “Tracking”
"Fast Tuning" on
page 541
Center frequency is < 25 kHz, or
CF >= 1 MHz and Span <= 141.4 kHz
and RBW <= 5 kHz
"Best Close-in"
on page 540
All other conditions "Best Wide-
offset" on page
541
In all the above cases:
–
The RBW to be used in the calculations is the equivalent –3 dB bandwidth of the
current RBW filter
–
The rules apply whether in swept spans, zero span, or FFT spans
543 Vector Modulation Analyzer Mode User's &Programmer's Reference

Keysight x-series Specifications

General

Analysis Bandwidth	Up to 1 GHz (depending on model)
Real-Time Bandwidth	Up to 1 GHz (depending on model)
Form Factor	Benchtop
Connectivity	LAN, USB, GPIB
Resolution Bandwidth	1 Hz to 10 MHz (depending on model)