5989-8618EN
Keysight Technologies
N9912A FieldFox RF
Handheld Analyzer
4/6 GHz
Technical Overview
02 | Keysight | N9912A FieldFox RF Handheld Analyzer - Technical Overview
Carry Precision with You
Every piece of gear in your kit had to prove its worth. Measuring up and earning a spot in
your field kit is the driving idea behind Keysight’s FieldFox RF analyzer. It is equipped to
handle routine maintenance, in-depth troubleshooting and anything in between.
Starting with adaptability: every operating mode is flexible enough to meet the needs
of novices and experts alike. To accelerate your work, each mode has a task-driven
interface that saves time in the field. Best of all, FieldFox is designed to withstand your
toughest working conditions.
Add FieldFox to your kit and carry precision with you.
03 | Keysight | N9912A FieldFox RF Handheld Analyzer - Technical Overview
World’s Most Integrated Handheld RF Analyzer
Key measurements
–– Cable and antenna test, distance-to-fault, return loss, cable loss
–– Vector network analysis with Smith chart display and time domain
–– Spectrum analyzer, channel scanner, CHP, ACPR, OBW
–– Interference analyzer, spectrogram, waterfall, record and playback
–– Independent source, CW and tracking
–– Vector voltmeter
–– Power measurements using USB power sensor, built-in power meter and pulse
measurements
Key differentiators
–– Immediate measurements with CalReady, 50 percent faster than traditional
handheld instruments
–– Integrated QuickCal calibrates for simple field measurements- no calibration
kit required
–– Superior dynamic range (96 dB) and sensitivity (-148 dBm) in the spectrum
analysis mode
Frequency specifications
Frequency Range
Cable and antenna analyzer
Vector network analyzer
2 MHz to 4/6 GHz
Spectrum analyzer
100 kHz* to 4/6 GHz
Signal source
2 MHz to 4/6 GHz
*Useable to 5 kHz
04 | Keysight | N9912A FieldFox RF Handheld Analyzer - Technical Overview
Pick up FieldFox for its ergonomics
7.4” W
188 mm
Anti-glare 6.5 inch
LCD display with
LED backlight
Convenient side
strap makes it
easy to hold
and carry
11.5” H
292 mm
Task-driven keys
are grouped to
easily and
naturally perform
standard field
measurements
Portrait design and
large buttons for
easy operation —
even with gloves on
Dedicated marker keys for quick
marker function access
Backlit keypad
05 | Keysight | N9912A FieldFox RF Handheld Analyzer - Technical Overview
…and depend on its durability and convenience
2.8” D
72 mm
RF Out
External reference
and external trigger
Connector bay protects
RF connectors
Easily accessible
battery compartment
Gasketed doors protect
ports from moisture
RF In
Spacious connector design makes
connections fast and simple
LAN port for data transfer,
SCPI programming and
remote control from iPad
SD flash card slot for
additional data storage
Mini USB port connection to
PC for SCPI programming1
Quick-connect
shoulder strap clips
Simplify interference
analysis with AM/FM
tune and listen
USB ports for data transfer, GPS
receiver, and USB power sensors
1. SCPI over USB is only available for N9912A with serial number prefix starting with MY5607/SG5607/US5607 and N9912A upgraded with Option
N9910HU-500.
06 | Keysight | N9912A FieldFox RF Handheld Analyzer - Technical Overview
Utilize the World’s Most Integrated Handheld RF Analyzer
Cable and antenna analyzer
Fifty to sixty percent of cell site problems
are caused by faulty cables, connectors,
and antennas. Degraded feed lines cause
poor coverage, unncessary handovers,
paging failures and access failures on
uplink. To avoid service quality problems,
it is critical to keep cell sites’ cable and
antenna systems in good condition.
Use FieldFox to make return loss, VSWR,
insertion loss/transmission, one-port
cable loss, and distance-to-fault (DTF)
measurements. You can test antennas,
cables, filters, and amplifiers with a single
instrument.
Return loss and DTF measurements
FieldFox can make both return loss and
distance-to-fault measurements at the
same time. This helps you correlate overall
system degradation with specific faults in
the cable and antenna system.
The built-in cable editor allows you to
edit existing cable types on-site, and save
them as new cable types with user defined
names.
CalReady-calibrated at power
on and ready to go
Each instrument is CalReady at the RF Out
port, immediately following power-on or
preset. This means it’s already calibrated
and ready to make measurements such as
one-port cable loss, VSWR, return loss,
and DTF measurements at the test port.
Hassle-free calibration in the
field with QuickCal
View and control the RL and DTF displays independently
FieldFox comes with a built-in calibration
capability that allows you to calibrate the
network analyzer without carrying a cal kit
into the field. With any other test instrument, when you add additional devices
to the test port, such as jumper cables or
adapters, you need to recalibrate using a
cal kit.
FieldFox’s QuickCal supports measurements such as insertion loss/gain, 1-port
cable loss, return loss, and DTF.
Insertion loss display
Broadband calibration
FieldFox allows you to make broadband
calibrations, which means the instrument
is calibrated over the maximum frequency
span. After a broadband calibration,
you can change the frequency range or
number of points without recalibrating the
instrument.
Use FieldFox’s QuickCal capability and perform
calibrations without carrying a cal kit
07 | Keysight | N9912A FieldFox RF Handheld Analyzer - Technical Overview
Utilize the World’s Most Integrated Handheld RF Analyzer (continued)
Spectrum analyzer
Interference analyzer
Interference is a major source of cell site
problems. Interference can be internal or
external, and uplink or downlink. Downlink interference reduces coverage, while
uplink interference causes access failure.
Interference has a direct impact on the
quality of service of wireless communication services.
Interference can be internal or external,
uplink or downlink, and has a direct impact
on the quality of service (QoS) of a communication network. FieldFox’s interference analyzer is designed to identify
interference signals quickly. Spectrogram
and waterfall display detect intermittent
signals or monitor signals of interest for
longer periods of time. Signal traces can
be recorded into internal memory or external flash memory devices and play back
the saved traces for offline processing
FieldFox has an optional built-in spectrum
analyzer that covers frequency ranges
from 5 kHz to 4/6 GHz. It provides a fast
spectrum scan to detect interference and
RF burst capture to measure intermittent
signals. It displays four traces at the same
time, and you can choose different detector modes.
Field strength measurements
Field strength characterization is a common test performed by operators in the
field. To make accurate measurements, the
gain and loss of the antenna and cables
need to be accounted for. With FieldFox,
antenna factors and cable loss data can
be loaded using either the front panel or
the Data Link software.
Independent signal source
FieldFox has a built-in independent signal
source, with a frequency range of up to
4/6 GHz. The signal source can be tuned
to any frequency, independent of the
spectrum analyzer frequency. You can use
the signal source to create a test signal
to measure coverage, antenna isolation,
antenna direction alignment, and shielding
effectiveness, frequency-offset devices
and long cable loss measurement.
RF spectrum monitoring aided by spectrogram
recording
Channel scanner
Channel scanner allows users to make
multiple channel power measurements
simultaneously. It is used to verify wireless
network coverage, path loss and potential
interference issues. It also can be used
to measure primary carriers and their
intermodulated products. Each instrument
state can be a custom set of frequencies
with each frequency having unique integrating bandwidth. Users can record and
playback the data with data logging. Using
time interval logging along with geo tagging, files can be exported to Google Earth
for network coverage analysis.
Scan up to 20 channel simultenously with channel scanner option
Independent CW signal source, coupled, viewed
in “Night Vision” display mode
08 | Keysight | N9912A FieldFox RF Handheld Analyzer - Technical Overview
Utilize the World’s Most Integrated Handheld RF Analyzer (continued)
Network analysis
Network analyzer time domain
FieldFox RF analyzer can be configured
with VNA transmission/relection (T/R)
capability for S11 and S21 measurements.
IWith the time domain Option, FieldFox
computes the inverse Fourier transform of
the frequency-domain data to display reflection or transmission coefficients versus
time. Time domain gating can be used to
remove unwanted responses such as connector mismatch or cable discontinuities,
and the results can be displayed in either
time or frequency domain.
S11, S11 phase, Smith chart and polar
display are available with Option 303 (network analysis capability). To obtain S21
or insertion loss/gain, users need to order
Option 110 (transmission measurement), in
addition to Option 303.
For in-fixture measurements, use
FieldFox’s port extension or electrical
delay capability to easily extend the reference plane to the device interface to provide accurate measurements. You can use
the electrical delay capability to measure
deviation from linear phase by removing
the linear portion of the phase delay.
Transmission measurement
FieldFox provides a 2-port transmission
measurement that measures insertion
loss, amplifier gain, filter passband, and
loss. It also makes a S21 scalar measurement if Option 303 is enabled.
Device input impedance displayed on a Smith
chart
FieldFox’s time domain function supports
both low pass mode and band pass mode,
enabling users to measure both broadband and frequency-selective devices
Vector voltmeter
Using FieldFox’s vector voltmeter (VVM),
you can measure the phase shift and
electrical length of a device. By utilizing
the “Zero” function, the phase and electrical length of one device can be measured
relative to a “golden device”. View results
on the large display which can be seen as
far as ten feet away.
Use time domain gating to remove unwanted
responses. Before gating: Traces 1 and 3, After
gating: Traces 2 and 4.
FieldFox offers all the key functionalities
of the HP 8508A, in a handheld form factor, and without the need for the source,
bridge and accessories required with the
8508A.
Simplify cable trimming with the vector voltmeter
capability
09 | Keysight | N9912A FieldFox RF Handheld Analyzer - Technical Overview
Utilize the World’s Most Integrated Handheld RF Analyzer (continued)
USB power measurements
Pulse measurements
FieldFox RF can connect with the Keysight
USB power sensors to make RF power
measurements. Using USB peak power
sensors, users can measure both the average and the peak power of a modulated
signal.
FieldFox’s pulse measurement option allows you to efficiently characterize pulsed
RF signals such as those used in radar
and electronic warfare systems, leveraging the Keysight USB peak power sensors.
Measurements include peak power, peak
to average ratio, and pulse profile parameters such as rise time, fall time and pulse
repetition frequency.
USB power measurements
versus frequency
In addition to power measurements at a
single CW frequency, you can measure
power versus frequency - a swept measurement. FieldFox’s source frequency
can be set equal to the sensor/receiver
frequency, or with an offset. The frequency
of both the source and receiver are swept,
and the two track each other. The offset
frequency can be negative, zero, or positive.
This capability is useful for characterization of the scalar transmission response
of devices such as mixers and converters.
The FieldFox source stimulates the DUT
and the power sensor is used as the measurement receiver.
Simplify power measurements with USB power
sensors
Use FieldFox to characterize pulses
10 | Keysight | N9912A FieldFox RF Handheld Analyzer - Technical Overview
Utilize the World’s Most Integrated Handheld RF Analyzer (continued)
Remote control capability with
iPad and iPhone
Engineers and technicians can now remotely monitor and control their FieldFox
using their iOS device such as an iPhone,
iPad, or iPod Touch. FieldFox’s Remote
Viewer iOS app emulates the front panel
of the unit, letting you simply press any
FieldFox key right from your iOS device.
The app also allows you to instantly access technical documents such as data
sheets.
Remote control via LAN and
FieldFox programming
FieldFox’s can be controlled using SCPI
over LAN and USB.
USB keyboard and mouse
Support
FieldFox supports use of USB keyboards
and mice to simplify the input of text such
as file names while working in the field.
Control and view your FieldFox via iPad
FieldFox’s Data Link software
makes report generation and
documentation easier
FieldFox’s complimentary Data Link software provides data transfer, data definition and report generation. You can add
markers and limit lines to traces, and you
can load cable files and antenna factors
using Data Link
Simplify text entry with a USB keyboard and mouse
11 | Keysight | N9912A FieldFox RF Handheld Analyzer - Technical Overview
Comprehensive measurement capabilities
Cable and antenna test
– Return loss, VSWR
– Distance-to-fault
Return loss/VSWR measurements allow you to evaluate the impedance
matching performance of the feed line across the frequency range of
interest.
Distance-to-fault measurements help you identify the faults along a feed
line. Use these measurements to precisely pinpoint the location of damaged or degraded antennas, connectors, amplifiers, filters, and duplexers,
etc.
FieldFox provides up to 1001 data-point resolution to help accurately
locate faults and extend measurement distance.
Transmission test
– Cable loss
– Insertion loss
– Amplifier gain
Transmission test is used to accurately measure cable loss, insertion loss
(filters), and amplifier gain (tower mounted amplifier). FieldFox offers twoport transmission magnitude measurements with up to 72 dB dynamic
range.
One-port cable loss
For already-installed cables, FieldFox accurately measures cable loss via
the RF Out port. The instrument measures actual cable loss, without the
need for additional computation.
CalReady at test port
Each instrument is calibrated at the RF Out port. When you power up the
instrument, it is ready to make measurements such as one-port cable
loss, VSWR, return loss, and DTF at the test port.
QuickCal
The industry’s-first and only built-in calibration system allows you to
calibrate the cable and antenna tester without carrying a calibration
kit with you all the time. It provides worry-free accuracy and excellent
repeatability.
Mechanical
calibration
Open-short-load (OSL) is standard in FieldFox. There are four calibration
kits defined in the instrument.
Spectrum analysis
The built-in spectrum analyzer allows you to scan up to 6 GHz and detect
internal and external interference. FieldFox can detect signals as low as
-148 dBm up to 6 GHz, with phase noise of -88 dBc at 10 kHz, and a third
order intercept (TOI) better than +18 dBm.
Limit lines
Use limit lines or masks for pass/fail testing. You can set up both fixed
and relative limit lines, or build a limit line table from a current trace.
Interference analyzer
Spectrogram and waterfall displays allow you to detect and monitor
intermittent interference signals. The interested signals can be recorded
and played back.
Channel scanner
Provides channel power measurements to verify signal coverage, identify
potential interference issues and optimize network performance. Each
channel can be custom set with different frequency and bandwidth for
multiple signal analysis. Record and playback with data logging.
Field strength
measurements
Antenna factors and cable loss data can be loaded using either the front
panel or the Data Link software. Field strength can be
displayed in dBuV/m, dBuA/m, dBG or dBpT.
GPS
Enables operators to find exact locations and time/location stamp their
measurement reports. The GPS information can be displayed on the
screen and saved as part of the image, data or recorded signal.
Perform and view return loss and distance-tofault measurements at the same time
Locate interference signals
Perform spectrum analysis
12 | Keysight | N9912A FieldFox RF Handheld Analyzer - Technical Overview
Comprehensive measurement capabilities (continued)
Independent signal
source
Provides a test signal to measure coverage, antenna isolation, long cable loss,
frequency offset, and align antenna direction.
Power suite
measurements
Built-in spectrum analyzer provides one-button power suite measurements
such as; channel power, ACPR and OBW for LTE, WiMAX, WCDMA, TD-SCDMA,
cdma2000 and GSM measurements.
Custom radio
standards
Use one of the pre-loaded radio standards such as GSM 1900 or WCDMA
850, or create your own custom radio standard using a csv file.
AM/FM tune and
listen
The built-in spectrum analyzer can demodulate AM/FM modulated signals
and play the audio via speaker or headset. This feature is very useful to
identify types of signals.
Channel power meter
Channel power meter measurements provide absolute power measurements over a defined frequency bandwidth, without the need for an external
power sensor.
Power meter
Makes accurate true average power measurements without bringing a
power meter along. The state-of-the-art Keysight USB power sensors
provide measurements up to 24 GHz.
Pulse characterization
Using USB peak sensors and FieldFox, you can measure peak power, peak
to average ratio, and pulse profile parameters such as rise time, fall time
and pulse repetition frequency.
Smith chart
Smith charts can be used to display impedance matching characteristics in
cable and antenna systems.
Vector voltmeter
The large vector voltmeter display makes it easy to match two or more
device’s electric length and ensure signals that travel on different devices
have the same delay.
Electrical delay
Using the electrical delay function, you can remove the linear portion of the
phase shift and view the deviation from linear phase.
Port extension
Allows you to extend the reference plan after calibration. This feature is
useful for measurements such as in-fixture test, where calibrating at the
DUT or reference plane is cumbersome.
Network analyzer time
domain
Using the time domain feature, you can display reflection or transmission coefficients versus time. Time domain gating can be used to remove
unwanted responses such as connector mismatch or cable discontinuities.
Channel power measurement
Power measurements over a defined bandwidth
without an external sensor
13 | Keysight | N9912A FieldFox RF Handheld Analyzer - Technical Overview
Field-proof usability
Transflective display and
backlit keys
The display is designed for easy viewing in indoor and outdoor settings
and in direct sunlight and darkness. Access different display modes via
softkeys.
Task-driven key design
Front-panel keys are grouped to easily and naturally perform standard
field measurements.
Speaker and
headphone jack
Used for demodulated audio signal capability.
One-button
measurement
Provides task-driven user interface to simplify the measurements.
Rugged design
Water-resistant chassis,
keypad and case design
The case is made from polycarbonates that withstand wide temperature ranges and salty, humid environments.
RF connector
protection
A specially designed connector bay protects the RF connectors from
damage during drops or other external impacts.
Dust-free design
With no vents or fans in the case, FieldFox resists dust for better
equipment reliability.
Meets tough environmental standard
Meets MIL-PRF-28800F Class 2 specification.
Gasketed doors
Protects instrument interface from moisture.
Transflective display makes it easy to read measurements in direct sunlight
Modern connectivity
USB 2.0 ports
Two USB 2.0 ports; can be used for data transfer, GPS receiver and
USB power sensor support.
LAN port
Used for SCPI programming, Data Link connection, and remote control
via iOS device.
SD flash card slot
Use as a data storage device.
FieldFox Data Link software
Transfer data remotely from the instrument to a PC for backoffice applications such as baseline analysis and report generation.
Remote control
capability
Remotely monitor and control FieldFox using an iOS device such as
iPad or iPhone, via a LAN network connection.
Water resistant chassis withstands wide temperature ranges and humid environments
14 | Keysight | N9912A FieldFox RF Handheld Analyzer - Technical Overview
Specifications in Brief
A condensed version of the specifications is provided here. See the User’s Guide for the complete version;
http://cp.literature.cdn.keysight.com/litweb/pdf/N9912-90001.pdf
Specification (spec.):
Typical (typ.):
Warranted performance. Specifications include guardbands to account for the expected statistical performance
distribution, measurement uncertainties, and changes in
performance due to environmental conditions. The following conditions must be met:
–– FieldFox has been turned on at least 10 minutes
(unless otherwise stated)
–– FieldFox is within its calibration cycle
–– Storage or operation at 25 ±5 °C range
(unless otherwise stated)
Expected performance of an average unit over a 20 °C to 30 °C
temperature range, unless otherwise indicated; does not include
guardbands. It is not covered by the product warranty. The
FieldFox must be within its calibration cycle.
Nominal (nom.):
A general, descriptive term or design parameter. It is not tested,
and not covered by the product warranty.
Cable and antenna analyzer (Option 104 or 106)
Frequency
Frequency range
Option 104
2 MHz1 to 4 GHz
Option 106
2 MHz 2 to 6 GHz
Frequency reference
Accuracy
±2 ppm
Aging rate
±1 ppm/yr
Temperature stability
±1 ppm over -10 to 55 ºC
Frequency resolution
2 MHz to 1.6 GHz
2.5 kHz
> 1.6 to 3.2 GHz
5 kHz
> 3.2 to 6 GHz
10 kHz
Measurement speed (sweep time) - Nominal
Return loss, 1.75 GHz to 3.85 GHz, 1001 points,
Cal ON3
0.4 ms/point
Distance-to-fault, 0 to 500 ft, 601 points, Cal ON4
0.5 ms/point
Data points
101, 201, 401, 601, 801, 1001 (up to 10,001 using SCPI)
Directivity
Corrected
> 42 dB
QuickCal (Option 111)
> 42 dB (typical)5
Source match
Corrected
> 36 dB
QuickCal (Option 111)
≥ 35 dB (typical)5
Reflection tracking
Corrected
± 0.06 dB
QuickCal (Option 111)
± 0.15 dB (typical)5
1. 2. 3. 4. 5. Spectrum analyzer (Option 230) start frequency is 100 kHz, usable to 5 kHz.
Spectrum analyzer (Option 231) start frequency is 100 kHz, usable to 5 kHz.
1.5 ms/point; applicable for N9912A with serial number prefix < than MY5607/SG5607/US5607 and N9912A not upgraded with Option N9910HU-500
2.4 ms/point; applicable for N9912A with serial number prefix < than MY5607/SG5607/US5607 and N9912A not upgraded with Option N9910HU-500
Requires 90 minute warm up.
15 | Keysight | N9912A FieldFox RF Handheld Analyzer - Technical Overview
Dynamic range
Reflection (RF Out port)
2 MHz to 4 GHz
60 dB (typical)
> 4 GHz to 6 GHz
55 dB (typical)
Transmission measurement (Option 110)
2 MHz to 2 GHz
72 dB (typical)
> 2 GHz to 3 GHz
67 dB (typical)
> 3 GHz to 5 GHz
58 dB (typical)
> 5 GHz to 6 GHz
49 dB (typical)
Output power range
High power
2 MHz to 4 GHz
< +8 dBm, +6 dBm (nominal)
> 4 GHz to 6 GHz
< +7 dBm, +2 dBm (nominal)
Low power
2 MHz to 4 GHz
< -23 dBm, -25 dBm (nominal)
> 4 GHz to 6 GHz
< -24 dBm, -29 dBm (nominal)
Immunity to interference
+16 dBm (nominal)
Maximum input level (RF Out port)
+23 dBm
Maximum input DC voltage (RF Out port)
±50 VDC
16 | Keysight | N9912A FieldFox RF Handheld Analyzer - Technical Overview
Cable and antenna measurements
Return loss
Display range
0 to 100 dB
Resolution
0.01 dB
VSWR
Display range
0 to 100
Resolution
0.01
Distance to fault (DTF)
Range = (number of points - 1)/ (span*2) x Vf (velocity factor in cable) x c (light speed)
Resolution = range/(number of points - 1)
Number of points: 101, 201, 401, 601, 801, 1601, 4001, 10,001 (custom number of points can be set using SCPI)
Distance-to-fault display: return loss, VSWR, reflection coefficient
Cable loss (1-port)
Terminated cable under test with short
Insertion loss (2-ports)
Requires Option 110
Transmission measurement (Option 110)
Frequency range
Option 104
2 MHz to 4 GHz
Option 106
2 MHz to 6 GHz
Dynamic range
2 MHz to 2 GHz
72 dB (typical)
2 GHz to 3 GHz
67 dB (typical)
> 3 GHz to 5 GHz
58 dB (typical)
> 5 GHz to 6 GHz
49 dB (typical)
17 | Keysight | N9912A FieldFox RF Handheld Analyzer - Technical Overview
Network analysis (Option 303)
S11
Vector measurement, S11 magnitude and S11 phase. Specification is listed under Cable and antenna
analyzer section (S11/Return loss).
S21
Scalar measurement, S21 magnitude. Specification is listed under transmission measurement. S21
requires Option 110 transmission measurement.
A
Reflected power
R
Source power
Display
Log, linear, phase, VSWR, Smith chart, polar, group delay, unwrapped phase
Calibration types
Mechanical cal, QuickCal, normalization
IF bandwidth selections
300 Hz, 1 kHz, 3 kHz, 10 kHz and 30 kHz
Data points
101, 201, 401, 601, 801, 1001, 1601, 4001, 10,001 (custom number of points can be set using SCPI)
Vector network analyzer time domain (Option 010)
Using time domain, data from transmission or reflection measurements in the frequency domain are converted to the time domain.
The time-domain response shows the measured parameter value versus time.
Time stimulus modes
Low-pass step
This stimulus, similar to a traditional time domain reflectometer (TDR) stimulus waveform, is used to
measure low-pass devices. The frequency-domain data should extend from DC (extrapolated value) to a
higher value.
Low-pass impulse
This stimulus is also used to measure low-pass devices.
Bandpass impulse
The bandpass impulse stimulates a pulsed RF signal and is used to measure the time-domain response of
band-limited devices.
Windows
The windowing function can be used to filter the frequency-domain data and thereby reduce overshoot and ringing in the time-domain response.
Gating
The gating function can be used to selectively remove reflection or transmission time-domain responses. In converting back to the frequency domain the
effects of the responses outside the gate are removed.
18 | Keysight | N9912A FieldFox RF Handheld Analyzer - Technical Overview
Spectrum analyzer (Option 230 or 231)
Frequency
Frequency range
Option 104
100 kHz to 4 GHz, usable to 5 kHz
Option 106
100 kHz to 6 GHz, usable to 5 kHz, tunable to 6.1 GHz
Frequency reference
Accuracy
±2 ppm
Frequency aging
±1 ppm/yr
Temperature stability
±1 ppm over -10 to 55 °C
Frequency readout accuracy
± (readout frequency x frequency reference accuracy + RBW centering + 0.5 x horizontal resolution)
Frequency span
Range
0 Hz (zero span), 10 Hz to maximum frequency
Span accuracy
±(2 x RBW centering + horizontal resolution)
Span resolution
1 Hz
Resolution bandwidth (RBW)
Range (-3 dB bandwidth)
Zero span
300 Hz to 1 MHz in 1-3-10 sequence; 2 MHz
Non-zero span
10 Hz to 300 kHz in 1/1.5/2/3/5/7.5/10 sequence; 1 MHz, 2 MHz
Accuracy
1 kHz to 1 MHz: ±5% (nominal)
10 Hz to 100 KHz non-zero span: ±1% (nominal)
2 MHz: ±10% (nominal)
300 Hz zero span: ±10% (nominal)
Selectivity (-60 dB/ -3 dB)
4:1 (nominal)
Video bandwidth (VBW)
Range
1 Hz to 2 MHz in 1/1.5/2/3/5/7.5/10 sequence
Stability
Noise sidebands, CF = 1 GHz
10 kHz offset: -88 dBc/Hz ( typical)
30 kHz offset: -89 dBc/Hz, (typical)
100 kHz offset:
1 MHz offset: -115 dBc/Hz, (typical)
Sweep acquisition, span > 0 Hz
Range
1 to 5000, number of data acquisitions per trace point; value is normalized to the minimum required
to achieve amplitude accuracy with CW signals
Resolution
1
Readout
Measured value representing time required to tune
Trace updates
Span = 20 MHz, RBW = 3 kHz1
5.9 updates/second
Span = 100 MHz, RBW auto coupled
Span = 6 GHz, RBW auto coupled
2
3
16.7 updates/second
1.7 updates/second
Trace points
101, 201, 401, 601, 801, 1001 points, default is 401
1. 1.5 updates/second; applicable for N9912A with serial number prefix < than MY5607/SG5607/US5607 and N9912A not upgraded with Option N9910HU-500.
2. 7 updates/second; applicable for N9912A with serial number prefix < than MY5607/SG5607/US5607 and N9912A not upgraded with Option N9910HU-500.
3. 1 updates/second; applicable for N9912A with serial number prefix < than MY5607/SG5607/US5607 and N9912A not upgraded with Option N9910HU-500.
19 | Keysight | N9912A FieldFox RF Handheld Analyzer - Technical Overview
Amplitude
Measurement range
Displayed average noise level (DANL) to +20 dBm
Input attenuator range
0 to 31 dB, 1 dB steps
Maximum DC voltage at RF In port
±50 VDC
Maximum input power at RF In port
+27 dBm (0.5 W)
Displayed average noise level (DANL)
10 Hz RBW, 10 Hz VBW, 50 ohm termination input, 0 dB attenuation, average detector
Preamplifier OFF
20 to 30 °C
10 MHz to 2.4 GHz
-130 dBm (typical)
> 2.4 to 5 GHz
-125 dBm (typical)
> 5 to 6 GHz
-119 dBm (typical)
Preamplifier ON (Option 235)
20 to 30 °C
10 MHz to 2.4 GHz
-148 dBm (typical)
> 2.4 to 5 GHz
-145 dBm (typical)
> 5 to 6 GHz
-138 dBm (typical)
-10 to 55 °C
10 MHz to 2.4 GHz
< -141 dBm
> 2.4 to 5 GHz
< -138 dBm
> 5 to 6 GHz
Total absolute amplitude accuracy
< -130 dBm
1
Peak detector, 10 dB attenuation, preamplifier off, RBW < 2 MHz, input signal 0 dBm to -50 dBm, all settings auto-coupled
20 to 30 ºC
2 MHz to 10 MHz
± 1.80 dB
± 0.60 dB (typical)
> 10 MHz to 3 GHz
± 1.50 dB
± 0.50 dB (typical)
> 3 to 5 GHz
± 1.90 dB
± 0.60 dB (typical)
> 5 to 6 GHz
± 2.10 dB
± 0.60 dB (typical)
Second harmonic distortion (SHI)
-30 dBm signal at input mixer
2 MHz to 1.35 GHz
< -70 dBc, +40 dBm SHI (nominal)
1.35 to 3 GHz
< -80 dBc, +50 dBm SHI (nominal)
1. Requires 90 minute warm up
20 | Keysight | N9912A FieldFox RF Handheld Analyzer - Technical Overview
Third order intermodulation distortion (TOI)
Two -30 dBm tones at input mixer, > 100 kHz tone separation
< -96 dBc, +18 dBm TOI (nominal)
Residual responses
Input terminated, 0 dB attenuation, preamplifier off, RBW ≤ 1 kHz, VBW auto-coupled
20 MHz to 3 GHz
-90 dBm (nominal)
> 3 to 6 GHz
-85 dBm (nominal)
Spurious responses
Input mixer level -30 dBm
RFsig = RFtune + 417 MHz
-70 dBc (nominal)
RFsig = RFtune + 1.716 GHz
-80 dBc (nominal)
Input mixer level -10 dBm, first IF image response
RFsig = RFtune – 2 x 0.8346 GHz,
for RFtune 5.7 to 6.0 GHz
-50 dBc (nominal)
Sidebands
-80 dBc (nominal)
-60 dBc (nominal) when battery charging, 260 kHz offset
Preamplifier (Option 235 requires Option 230 or 231)
Option 230
100 kHz to 4 GHz
Option 231
100 kHz to 6 GHz
Gain
22 dB (nominal)
Reference level
Range
-170 dBm to +30 dBm
Resolution
0.1 dB
Accuracy
0 dB (no error)
Traces
4 traces, data/max/average/min
Detectors
Normal, positive peak, negative peak, sample, average
Markers
Marker types
Normal, noise marker, band/interval marker, frequency counter marker
Number of markers or delta markers
6
Marker functions
Peak, next peak, peak left, peak right, marker to center, minimum search
RF In VSWR
1.5:1 (50 ohm)
Channel scanner (Option 312)
Description
Scan Mode
Range or custom list
Display Type
Bar chart vertical, bar chart horizontal, channel power, strip chart, chart overlay, scan & listen
Data logging mode
Time with geo tagging
Trace playback and recording
Record channel power measurement
Store data internally or USB or SD card in .csv or .kml format
Playback recorded data using FieldFox
Data in .kml format can be exported to Google Earth
21 | Keysight | N9912A FieldFox RF Handheld Analyzer - Technical Overview
Independent signal source or tracking generator
The independent source or tracking generator is included with either spectrum analyzer option 230 or 231. The source can be used in
continuous wave (CW) or stimulus/response (S/R) mode. In CW mode, the source frequency is independent of the receiver frequency.
The source can be tuned to a frequency that is different from the receiver. In stimulus/response mode, the source operates the same
as a traditional tracking generator - the receiver tracks the source.
Frequency range
2 MHz to 4 GHz (Option 230) or 2 MHz to 6 GHz (Option 231)
Amplitude
High power
2 MHz to 4 GHz < +8 dBm, +6 dBm (nominal)
> 4 to 6 GHz <+7 dBm, +2 dBm (nominal)
Low power
2 MHz to 4 GHz <-23 dBm, -25 dBm (nominal)
> 4 to 6 GHz < -24 dBm, -29 dBm (nominal)
Attenuation
0 to 31 dB
Functions
Continuous wave, stimulus / response
Channel power meter (Option 311)
Channel power meter is a built-in power measurement that does not require an external power sensor. Users can set the center frequency
and channel bandwidth. The results are shown on a large analog display.
Frequency range
100 kHz to 4/6 GHz
Power accuracy1
Frequency range
Spec
Typical
2 MHz to 10 MHz
± 1.8 dB
± 0.60 dB
> 10 MHz to 3.0 GHz
± 1.5 dB
± 0.50 dB
> 3.0 GHz to 5.0 GHz
± 1.9 dB
± 0.60 dB
> 5.0 GHz to 6.0 GHz
± 2.1 dB
± 0.60 dB
Power meter measurement with USB sensor (Option 302)
Support for Keysight USB average and peak power sensors. Frequency and power range dependent on sensor. List of supported sensors:
www.keysight.com/find/usbsensorsforfieldfox.
Pulse measurements with USB peak power sensor (Option 330)
FieldFox’s pulse measurement option can be used to characterize RF pulses such as those used in radar and electronic warfare systems. Measurements are made using FieldFox and Keysight’s UBS peak power sensors. Performance specifications such as frequency,
dynamic range and minimum pulse width depend on the peak power sensor. Supported peak power sensors: www.keysight.com/find/
usbsensorsforfieldfox.
1. Specification requires 90 minute warm-up
22 | Keysight | N9912A FieldFox RF Handheld Analyzer - Technical Overview
Remote control capability with iPad or iPhone (Option 030)
Users can now remotely monitor and control their FieldFox using their iOS device such as an iPad, iPhone, or iPod Touch. FieldFox’s
Remote Viewer iOS app emulates the front panel of the unit, so users can simply press any FieldFox key right from their iOS device,
including the hardkeys or softkeys.
With this technology, FieldFox can now be placed in areas where users do not wish to stay long due to extremely harsh or unsafe conditions. Additionally, if one technician or engineer has trouble making a measurement or determining the source of a problem, another
can step in to remotely troubleshoot and solve the problem, which helps minimize rework and multiple trips. When the application is
launched, users can access the FieldFox demo videos and technical literature such as user guides, application notes, and datasheets.
Accessing this information via the FieldFox app helps engineers and technicians in the field quickly find the data they need to resolve
issues as they arise. Such capabilities also make the app ideal for training and educational purposes.
The iOS device and FieldFox communicate via a WLAN or broadband data connection. Without Option 030, users can remotely view
the live display screen of their FieldFox, but cannot control the instrument.
General specifications
Connector type
Type-N (female)
Input impedance
50 ohm
External reference
Input type
BNC female
Reference frequency
10 MHz
Required level
-5 dBm to 10 dBm
Display
6.5” transflective, color VGA LED backlit 640 x 480 with anti-glare coating
Speaker
Built-in speaker
Headphone jack
Built-in headphone jack
Connectivity
2 x USB 2.0; 1 x mini USB; 1 x LAN
GPS
Latitude, longitude, elevation and accurate time are provided. The GPS information can be displayed on the screen, and saved as part of the image, data,
or recording file. The GPS capability is standard with all N9912A FieldFox RF analyzers. An external USB GPS receiver is required. Keysight recommends
the Microsoft Streets & Trips, or Microsoft AutoRoute with GPS locator.
Internal storage
Minimum 4 GB, up to 1000 traces
External storage
1 x micro SD slot and 2 x USB 2.0
EMC
Complies with European EMC Directive 2004/108/EC
– IEC/EN 61326-2-1)
– CISPR Pub 11 Group 1, Class A
– AS/NZS CISPR 11
– ICES/NMB-001
23 | Keysight | N9912A FieldFox RF Handheld Analyzer - Technical Overview
General specifications continued
ESD
– IEC/EN 61000-4-2, functional up to 20 kV test
Safety
Complies with European Low Voltage Directive 2006/95/EC
• IEC/EN 61010-1 2nd Edition
• Canada: CSA C22.2 No. 61010-1-04
• USA: UL 61010-1 2nd Edition
Environmental
Meets MIL-PRF-28800F Class 2 specification
Humidity
95% at 40 °C
Temperature
Operating
-10 ºC to +55 ºC
Non-operating
-51 ºC to 71 ºC
Weight
6.2 lbs / 2.8 kg including battery
Dimensions (H x W x D)
11.5” x 7.4” x 2.8” (292 x 188 x 72 mm)
Power
Power supply
External DC input: 15 to 19 VDC
External AC power adapter
Input
100 to 250 VAC, 50 to 60 Hz; 1.25 to 0.56 A
Output
15 VDC, 4 A
Power consumption
12 W
Battery
6 cell Lithium Ion, 10.8 V, 4.6 A-h
Battery operating time
4 hours
Languages
English, Chinese, French, Spanish, Japanese, Russian, German, Italian, Turkish, Portuguese, and Korean
24 | Keysight | N9912A FieldFox RF Handheld Analyzer - Technical Overview
Configuration Information
N9912A FieldFox RF analyzer
FieldFox RF Analyzer base functions:
One port cable and antenna analyzer (4 GHz), broadband calibration, CalReady, standard mechanical cal kit
support. Measurements include: return loss, distance-to-fault (DTF), one port cable loss and VSWR.
Standard accessories included N9912A:
AC/DC adapter; battery; soft carrying case comes with backpack and shoulder straps; Quick Reference
Guide; User’s Guide
N9912A FieldFox Options
Option 104
4 GHz cable and antenna analyzer
Option 106
6 GHz cable and antenna analyzer
Option 010
Network analyzer time domain
Option 030
Remote control capability (from iOS device)
Qption 110
Transmission measurement
Option 111
QuickCal
Option 230
4 GHz spectrum analyzer (requires Option 104)
Option 231
6 GHz spectrum analyzer (requires Option 106)
Option 235
Preamplifier for spectrum analyzer (requires Option 230 or 231)
Option 236
Interference analyzer
Option 302
External USB power sensor support
Option 303
Network analysis capability
Option 308
Vector voltmeter
Option 311
Channel power meter
Option 312
Channel scanner
Option 330
Pulse measurements (requires USB peak power sensor)
N9912A upgrades
The following upgrades are available for the N9912A FieldFox RF Analyzer. More information regarding upgrades is available at:
www.keysight.com/find/fieldfoxsupport
Product number
Description
Additional requirements
N9912AU-110
Add transmission measurement capability
None
Allows use of second port in NA and CAT modes.
N9912AU-111
Add QuickCal
None
N9912AU-230
Add 4 GHz spectrum analyzer
4 GHz unit only, Option 104
May only be installed on 4 GHz instrument.
N9912AU-231
Add 6 GHz spectrum analyzer
6 GHz unit only, Option 106
May only be installed on 6 GHz instrument.
N9912AU-235
Add preamplifier to spectrum analyzer
Spectrum analyzer Option, 230 or 231
N9912AU-236
Add interference analyzer
Spectrum analyzer Option, 230 or 231
N9912AU-302
Add external USB power sensor support
None
N9912AU-303
Add network analyzer capability; one port only
None
For second port, add Option 110.
N9912AU-308
Vector voltmeter
None
N9912AU-010
Add network analyzer time domain
Network analyzer Option 303
N9912AU-311
Add channel power meter
None
N9912AU-030
Add remote control capability
None
N9912AU-330
Add pulse measurements (requires USB peak power
sensor)
None
N9912AU-312
Add channel scanner capability
Spectrum analyzer Option, 230 or 231
25 | Keysight | N9912A FieldFox RF Handheld Analyzer - Technical Overview
Configuration Information continued
FieldFox RF analyzer hardware upgrade
Option1,2
Description
Upgrade contents
Additional requirements
N9910HU-500
N9912A/N9923A processor
N9912A/N9923A processor upgrade
Return to service center only
1. Upgrades are not available for FieldFox analyzers with serial number prefix starting with MY5607/SG5607/US5607, as this analyzer already has the
improved hardware.
2. Please contact your local Keysight Service Center for instructions on how and where to send the instrument, and how to order the factory upgrades.
N9910X RF/MW handheld analyzer accessories
N9910X-800
T-calibration kit, DC to 6 GHz, Type-N (m)
N9910X-801
T-calibration kit, DC to 6 GHz, Type-N (f)
N9910X-802
T-calibration kit, DC to 6 GHz, 7/16 DIN (m)
N9910X-803
T-calibration kit, DC to 6 GHz, 7/16 DIN (f)
85514A
4-in-1 OSLT mechanical calibration kit, DC to 9 GHz, Type-N (m), 50 ohm
85515A
4-in-1 OSLT mechanical calibration kit, DC to 9 GHz, Type-N (f), 50 ohm
N9910X-810
Rugged phase-stable cable, Type-N (m) to Type-N (m), 5 ft
N9910X-811
Rugged phase-stable cable, Type-N (m) to Type-N (f), 5 ft
N9910X-812
Rugged phase-stable cable, Type-N (m) to Type-N (m), 12 ft
N9910X-813
Rugged phase-stable cable, Type-N (m) to Type-N (f), 12 ft
N9910X-814
Rugged phase-stable cable, Type-N (m) to 7/16 (m), 5 ft
N9910X-815
Rugged phase-stable cable, Type-N (m) to 7/16 (m), 12 ft
N9910X-816
Rugged phase-stable cable, Type-N (m) to Type-N (f), 3.28 ft
N9910X-817
Rugged phase-stable cable, Type-N (m) to Type-N (m), 3.28 ft
N9910X-820
Antenna, directional, multiband, 800 to 2500 MHz, 10 dBi
N9910X-821
Antenna, telescopic whip, 70 MHz to 1 GHz
N9910X-843
Coaxial adapter, Type-N (m) to 7/16 DIN (f)
N9910X-845
Adapter kit: Type-N (f) to 7/16 DIN (f), Type-N (f) to 7/16 DIN (m), Type-N (f) to Type-N (f)
N9910X-846
Coaxial adapter, Type-N (m) 50 ohm to Type-N (f) 75 ohm (Recommend quantity 2 for
75 ohm measurements)
N9910X-860
Fixed attenuator, 40 dB, 100 W, DC to 3 GHz, Type-N (m) to Type-N (f)
N9910X-861
Fixed attenuator, 40 dB, 50 W, DC to 8.5 GHz, Type-N (m) to Type-N (f)
N9910X-870
Extra battery
N9910X-872
External battery charger
N9910X-873
AC/DC adapter
N9910X-874
External bias-tee, 2.5 MHz to 6 GHz, 1 W, 0.5 A
N9910X-875
DC car charger and adapter
N9910X-880
Extra soft carrying case with backpack and shoulder strap
N9910X-881
Hard transit case
For more information go to: www.keysight.com/find/fieldfox
26 | Keysight | N9912A FieldFox RF Handheld Analyzer - Technical Overview
Configuration Information continued
Antenna, N9910X-821
Directional antenna, N9910X-820
Bias-tees, N9910X-874
Phase stable cable, N9910X-810
100 Watt attenuator, N9910X-860
85514A
85515A
DC car charger and adapter,
N9910X-875
Adapter kit, N9910X-845
T-Cal kits
N9910X-800
N9910X-801
N9910X-802
N9910X-803
27 | Keysight | N9912A FieldFox RF Handheld Analyzer - Technical Overview
Soft carrying case with backpack and shoulder straps
included with a standard N9912A. For an extra soft
carrying case order N9910X-880
Hard transit case, N9910X-881
AC/DC adapter,
N9910X-873
FieldFox fits inside hard transit case
External battery charger,
N9910X-872
28 | Keysight | N9912A FieldFox RF Handheld Analyzer - Technical Overview
From Hewlett-Packard through Agilent to Keysight
For more than 75 years, we‘ve been helping you unlock measurement insights. Our
unique combination of hardware, software and people can help you reach your next
breakthrough. Unlocking measurement insights since 1939.
1939
THE FUTURE
myKeysight
www.keysight.com/find/mykeysight
A personalized view into the information most relevant to you.
Three-Year Warranty
www.keysight.com/find/ThreeYearWarranty
Keysight’s committed to superior product quality and lower total cost
of ownership. Keysight is the only test and measurement company with
three-year warranty standard on all instruments, worldwide. And, we provide
a one-year warranty on many accessories, calibration devices, systems and
custom products.
Keysight Assurance Plans
www.keysight.com/find/AssurancePlans
Up to ten years of protection and no budgetary surprises to ensure your
instruments are operating to specification, so you can rely on accurate
measurements.
Keysight Infoline
www.keysight.com/find/service
Keysight’s insight to best in class information management. Free access to
your Keysight equipment company reports and e-library.
Keysight Channel Partners
www.keysight.com/find/channelpartners
Get the best of both worlds: Keysight’s measurement expertise and product
breadth, combined with channel partner convenience.
www.keysight.com/find/fieldfox
www.keysight.com/find/im_forum
For more information on Keysight
Technologies’ products, applications or
services, please contact your local Keysight
office. The complete list is available at:
www.keysight.com/find/contactus
Americas
Canada
Brazil
Mexico
United States
(877) 894 4414
55 11 3351 7010
001 800 254 2440
(800) 829 4444
Asia Pacific
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Hong Kong
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Japan
Korea
Malaysia
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Other AP Countries
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800 810 0189
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080 769 0800
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(65) 6375 8100
Europe & Middle East
Austria
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Finland
France
Germany
Ireland
Israel
Italy
Luxembourg
Netherlands
Russia
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United Kingdom
0800 001122
0800 58580
0800 523252
0805 980333
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1800 832700
1 809 343051
800 599100
+32 800 58580
0800 0233200
8800 5009286
800 000154
0200 882255
0800 805353
Opt. 1 (DE)
Opt. 2 (FR)
Opt. 3 (IT)
0800 0260637
For other unlisted countries:
www.keysight.com/find/contactus
(BP-02-10-16)
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ISO9001 Quality Management System
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Keysight Technologies, Inc.
DEKRA Certified ISO 9001:2015
Quality Management System
This information is subject to change without notice.
© Keysight Technologies, 2008 - 2016
Published in USA, March 29, 2016
5989-8618EN
www.keysight.com
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