Keysight x-series Instruction Manual

3 Short-Range Comms & IoT Mode
3.4 HRP UWB Demodulation Measurement
Models with Option Conditions Selection
loop local oscillator, which switches to
a single loop for fast tuning
(available in PXA)
Source Mode is set to “Tracking”
Center frequency is < 195 kHz, or
CF >= 1 MHz and Span <= 1.3 MHz
and RBW <= 75 kHz
"Best Close-in"
on page 522
All other conditions "Best Wide-
offset" on page
523
EP2
Models with option EP2 use a different
loop bandwidth for the fast-tuning
choice, which is a compromise
between tuning speed and phase
noise, giving good tuning speed at all
offsets. Although not as good as for
"Best Close-in" on page 522; this is
useful when you have to look across a
wide range of spans
(available, for example, in MXA for
excellent phase noise)
CF < 130 kHz , or
CF > 12 MHz and Span < 495 kHz and
RBW < 40 kHz
"Best Close-in"
on page 522
Span > 22 MHz, or
RBW > 400 kHz, or
CF ≤ 12 MHz and Span < 495 kHz and
RBW < 23 kHz
"Fast Tuning" on
page 523
All other conditions "Best Wide-
offset" on page
523
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 523
CF is < 109 kHz or
CF >= 4.95 MHz and Span <= 666kHz
and RBW < 28 kHz
"Best Close-in"
on page 522
All other conditions "Best Wide-
offset" on page
523
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 523
are actually the same as "Best Close-
in" on page 522, 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 523
Center frequency is < 25 kHz, or
CF >= 1 MHz and Span <= 141.4 kHz
and RBW <= 5 kHz
"Best Close-in"
on page 522
All other conditions "Best Wide-
offset" on page
523
In all the above cases:
Short Range Comms & IoT Mode User's &Programmer's Reference 525

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)