Keysight x-series User Manual

6 Input/Output
6.9 Calibration
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 2512
All other conditions "Best Wide-
offset" on page
2513
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 2512; 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 2512
Span > 22 MHz, or
RBW > 400 kHz, or
CF ≤ 12 MHz and Span < 495 kHz and
RBW < 23 kHz
"Fast Tuning" on
page 2513
All other conditions "Best Wide-
offset" on page
2513
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 2513
CF is < 109 kHz or
CF >= 4.95 MHz and Span <= 666kHz
and RBW < 28 kHz
"Best Close-in"
on page 2512
All other conditions "Best Wide-
offset" on page
2513
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
2513 are actually the same as "Best
Close-in" on page 2512, 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 2513
Center frequency is < 25 kHz, or
CF >= 1 MHz and Span <= 141.4 kHz
and RBW <= 5 kHz
"Best Close-in"
on page 2512
All other conditions "Best Wide-
offset" on page
2513
In all the above cases:
Spectrum Analyzer Mode User's &Programmer's Reference 2515

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)