This configuration guide describes configurations, options and
accessories for the FieldFox family of portable analyzers. This guide
should be used in conjunction with the technical overview and data
sheet for a complete description of the analyzers. The table on Page 3
titled “FieldFox Family and Options” shows a comparison of the
functions available in the FieldFox family of analyzers.
Base model means that the functionality listed is the primary function of that instrument. For example, on the N991xA or N995xA combo
analyzers, cable and antenna analysis is the standard function included with every N991xA or N995xA.
2
Option 305 is not available on the N993xA or N996xA. However, a subset of cable and antenna analyzer measurements, return loss
and VSWR, is available as Option 320.
3
Option 320 is not applicable to N991xA, N995xA, or N992xA. The reflection measurements of return loss and VSWR are included with every
N991xA, N995xA, and N992xA. So, there is no need for an Option 320 on these analyzers.
4
On the N991xA or N995xA analyzers, order Options 233 and 210 to obtain a tracking generator with the spectrum analyzer. Option 220
is not available on the N 991xA or N995xA analyzers. Option 233 provides the spectrum analyzer capability and Option 210 the “tracking”
capability.
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Option
Vector Netwo rk
N992xA
Spect ru m
Power measurements
302
USB power sensor support
√√√
System features
030
Remote control capability
√√√
307
GPS receiver √ √
√
309
DC bias variable-voltage source
√√√
Windows based software
89601B
PathWave VSA (89600 VSA) software
√ (Not on N9912A)
—
√
N6820ES
Surveyor 4D soft w are
√ (Not on N9912A)
—
√
CAT and VNA
Description
208 USB power sensor meas. versus frequency √√√
310 Built-in power meter √√√
330 Pulse meas. with USB peak power sensor √√√
— Frequency extender support 1 √ (Not on N9912A)— √
Combination Analyzers
N991xA , N 995xA
Analyzers
Analyzers
N993xA , N 996xA
FieldFox RF and Microwave (Combination) Analyzers
Analyzer models
Step 1. Select the model that provides the desired frequency range.
Model Description
N9913A 4 GHz FieldFox RF analyzer 30 kHz to 4 GHz 100 kHz to 4 GHz Type-N (f)
N9914A 6.5 GHz FieldFox RF analyzer 30 kHz to 6.5 GHz 100 kHz to 6.5 GHz Type-N (f)
N9915A 9 GHz FieldFox microwave analyzer 30 kHz to 9 GHz 100 kHz to 9 GHz Type-N (f)
N9916A 14 GHz FieldFox microwave analyzer 30 kHz to 14 GHz 100 kHz to 14 GHz Type-N (f)
N9917A 18 GHz FieldFox microwave analyzer 30 kHz to 18 GHz 100 kHz to 18 GHz Type-N (f)
N9918A 26.5 GHz FieldFox microwave analyzer 30 kHz to 26.5 GHz 100 kHz to 26.5 GHz 3.5 mm (m)
N9950A 32 GHz FieldFox microwave analyzer 300 kHz to 32 GHz 9 kHz to 32 GHz NMD 2.4 mm (m)
N9951A 44 GHz FieldFox microwave analyzer 300 kHz to 44 GHz 9 kHz to 44 GHz NMD 2.4 mm (m)
N9952A 50 GHz FieldFox microwave analyzer 300 kHz to 50 GHz 9 kHz to 50 GHz NMD 2.4 mm (m)
frequency
SA frequency 2 Test port connectors
1
Frequency extenders are not currently supporte d on models N9913A, N9914A and N9915/35A si nce the starting LO frequency of
these mixers is higher than 9 GHz and the LO is provide d to the mixer from FieldFox Port 1. For a list of supported OML frequency
extenders, see Accessories p age 23.
2
Useable to 5 kHz.
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Analyzer options
010
VNA time domain
Requires 210, recommend 211. See page 7, FAQ #7
210
VNA transmission/reflection
Recommend ordering a cal kit. See page 6, FAQ #4 and page 7,
212
1-port mixed-mode S-parameters
Requires 210 and 211
215
TDR cable measurements
—
Spectrum analysis
235
Pre-amplifier
Requires 233
350
Real-time spectrum analyzer (RTSA) 1
Requires 233, Recommend 235. See page 8, FAQ #12
Requires 233, 307, and at least one of 312, 360, 370 or 377. See
355
Analog demodulation
Requires 233
358
EMF measurements
Requires 233. Also requires triaxial antenna. See page 9, FAQ #18
360
Phased array antenna support
Requires 233. See page 9, FAQ #16
370
Over-the-Air (OTA) LTE FDD 1
Requires 233, 307. Recommend 235.
302
USB power sensor support
Need to order USB power sensor 2
310
Built-in power meter
No power sensor required. See page 11, FAQ #1
Need to order USB peak power sensor. See page 12, FAQs #7 and
Step 2. Select optional measurement capabilities.
Any of these options can easily be added as a software upgrade in the future. Exception: Option 112 is only applicable to
N991xA models. It is not applicable to N995xA models.
Option Description Prerequisite options/notes
CAT/vector network analysis
112 QuickCal Not available for N995xA models. See page 7, FAQ #9
211 VNA full 2-port S-parameters Requires 210, recommend ordering a cal kit. See page 6, FAQ #5
308 Vector voltmeter 210 and 211 required to obtain full VVM functionality. See page 7,
FAQ #6
FAQ #8
209 Extended range transmission analysis (ERTA)
Requires 233 and 210. Recommend 307. Requires two FieldFox
units. See page 8, FAQ # 10. See page 10 for typical configuration.
233 Spectrum analyzer —
236 Interference analyzer and spectrogram Requires 233
238 Spectrum analyzer time gating Requires 233
312 Channel scanner Requires 233
351 I/Q Analyzer (IQA) 1 Requires 233
352 Indoor and outdoor mapping
page 9, FAQ #17
Requires 233, 235, 309 and accessory item N9910X-713 BNC to
356 Noise Figure (NF) 1
SMB cable. See page 9, FAQ #15 for external preamplifier and noise
source requirements.
AM/FM tune and listen, field strength measurem ents, antenna factors, frequency count er marker
Tracking generator (TG)/Independent source:
- TG CW mode (source CW frequency can be set independent of SA frequency) - included
- TG CW coupled mode (source CW frequency is auto coupled to SA’s center frequency) -
included
- TG tracking mode (traditional TG operation, swept SA coupled to swept source) - (requires
Option 210)
Interference analyzer and spectrogram
Trace playback and recor ding
Option 210 adds a VNA with transmission/reflection (T/R) capability
Measurements: S21, S11, magnitude and phase
Additionally, in the CAT mode, you can measure 2-port insertion loss
Calibrations: CalReady, OSL, response, and enhanced response cal
If you need all four S-parameters, order Options 210 and 211
If you need 2-port cal, order Options 210 and 211
spectrum analyzer
5. What is included with
N991xA/N995xA Option 211?
Option 211 adds full 2-port S-parameter capability to the VNA mode
Measurements: All four S-parameters (S11, S21, S22, S12), magnitude and phase
Calibrations: CalReady, OSL, response, enhanced response, and full 2-port cal
1
Requires CPU2 fast processor. See page 9, FAQ #13.
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Question Answer
6. Can I measure group delay on
N991xA/ N995xA analyzers?
7. What is included with
N991xA/N995xA Option 010?
8. What is included with
N991xA/N995xA Option 308?
9. What is included with N991xA
Option 112?
If you have phase measurem ent capability, then you can measure group delay. Option 210 is
required for any phase measurement capability. So, if you do not have Option 210, you cannot
measure group delay.
S11/S21 in time domain, if Option 210 is ordered. To get time domain data for all four S-parameters
and full 2-port cal, order Option 211.
View both time and frequency domain data at the same time
Low-pass, impulse, and band-pass modes
Minimum, medium, and maximum window
Gating
With Option 308: 1-port cable trimming
With Options 308 and 210: 1-port cable trimming, 2-port transmission
With Options 308, 210, and 211: 1-port cable trimming, 2-port transmission, A/B and B/A
Note: A/B and B/A measurements require an external source
Option 112 (QuickCal), is not available for N995xA analyzers. It is available for N991xA analyzers.
QuickCal is included with Option 112.
- 1-port QuickCal with a base analyzer
- 1-port and enhanced response QuickCal with a T/R analyzer (one that has Option 210)
- 1-port, enhanced response, and 2-port QuickCal with a full 2-port analyzer (one that has Option
211)
QuickCal is most accurate for DUTs with 7/16 and Type-N connectors and measurement
uncertainties are provided for frequencies ≤ 18 GHz. Reduced accuracy for DUTs with 3.5 mm (m),
SMA (m), or other male coaxial connectors; performance is unspecified. QuickCal is not
recommended for DUTs with 3.5 mm (f), SMA (f), or other similar female connectors. QuickCal is not
applicable to waveguide.
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Question Answer
10. What are the requirements for
Extended Range Transmission Analysis (ERTA) or Option 209 is a scalar measur ement system
E. LAN connection – For ERTA, the two FieldFox units communicate via a LAN connection. For a
Recommended accessory
11. What is included with Option
FieldFox analog demodulation has two parts: (1) Tune and listen, and (2) AM/FM metrics. Tune and
Option 209?
based on the use of two (2) FieldFox units. One FieldFox acts as the source and reference receiver,
while the second FieldFox acts as the measurement receiver. When different frequency models are
used in an ERTA pair, the ERTA system frequency range is limited to the lowest of the pair.
Required hardware
A. Two (2) FieldFox units. FieldFox units can be any of these models:
- ERTA cannot use N9912A, N9923A, N9925A, N9926A, N9927A or N9928A
The two FieldFox units used in ERTA do not have to be the same model.
ERTA requires the following options on Combo FieldFox models (N9913A, N9914A, N9915A,
N9916A, N9917A, N9918A, N9950A, N9951A, N9952A):
- Option 210, VNA transmission/reflection
- Option 233, spectrum analyzer
ERTA requires the following options on SA FieldFox models (N9935A, N9936A, N9937A, N9938A,
N9960A, N9961A, N9962A)
- Option 220, tracking generator
Both FieldFox units (the one used as the source, and the other used as the receiver) must have the
options listed above. The ERTA option (209) cannot be installed unless 210 and 233 are present on a
combo analyzer; or 220 is present on a SA analyzer.
With either the Combo or SA FieldFox units, the following options are highly recommended:
- Option 235, preamplifier – this option increases the measurement dynamic range by increasing
the received signal power
- Option 307, GPS receiver – this option increases the dynamic range by increasing the frequency
accuracy and permitting the use of a narrower RBW
B. Power splitter, two-resistor model, Keysight 11667A, 11667B, or 11667C. Other power splitters
can be used but the specifications listed are based on the match and tracking performance of
11667A, 11667B, or 11667C. Three-resistor pow er splitters are not recommended.
C. N9910X-712, Trigger/Reference-in cable, SMA (m) to BNC(f), 1 m, quantity two
D. N9910X-713, Trigger/Reference-out cable, SMB (m) to BNC (m), 1 m, quantity two
direct connection, a cross-over LAN cable is required. Alternately, both analyzers can be on a local
area network.
F. N9910X-825, GPS Antenna
355?
12. What is included with Option
350?
13. How do I determine if my
FieldFox has CPU2 fast
processor?
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listen is available with the purchase of the spectrum analyzer option 233. AM/FM metrics becomes
available when Option 355 is purchased. AM/FM metrics provides the user with RF spectrum view,
demodulated baseband signal waveform, carrier power, frequency deviation, SINAD and more.
Real-time spectrum analyzer (RTSA) or Option 350 provides real-time measurements on a FieldFox.
The FieldFox must be equipped with spectrum analysis capability. The preamplifier option is
recommended, as elusiv e signals often have low power levels. The maximum real-time bandwidth for
option 350 is 10 MHz. RTSA includes trace recording and playback capabilities. It does not include a
frequency-mask trigger (FMT).
All N995xA and N996xA analyzers include CPU2. On other FieldFox models, if the serial number
starts with MY5607/SG5607/US5607, then it has CPU2. If the serial number prefix is different, then
the analyzer firmware needs to be checked to see if the instrument has been upgraded with
N9910HU-100/200/300/400 to have CPU2.
Question Answer
Trace record/playback features
SA mode
RTSA mode
Record and playback spectrogram data
Yes
No 1
17. What is included with indoor
FieldFox’s mapping function is available in the following modes: Channel Scanner (312), Phased-
18. What is required for EMF
Requires triaxial antenna, not sold or provided by Keysight. Supported antenna is AGOS advanced
14. Is Spectrum Analyzer Trace
Recording and Playback
standard or an option?
15. What are the requirements for
Noise figure (NF) Option 356?
16. What is required for phased
array antenna support (Option
360)?
and outdoor mapping (Option
352)?
Spectrum Analyzer mode (Option 233) does not include Trace Recording and Playback by default.
To obtain this capability in SA mode, Option 236 Interference Analyzer and Spectrogram needs to be
purchased.
RTSA mode (Option 350) does include Trace Recording and Playback by default in RTSA mode.
Purchasing RTSA mode (Option 350) does not enable Trace Recording and Playback in SA mode
(Option 233).
SA and Interference Analyzer
Options 233 and 236
Record and playback spectrum traces Yes Yes
Save trace data with GPS time stamp over time Yes Yes
235) and DC bias variable voltage source (Option 309) as well as CPU2 processor. An external noise
source is also required and FieldFox supports Keysight noise source models 346A/B/C/K40/K01.
Also recommended to improve accuracy is an external preamplifier Keysight models U7227A/C/F or
U7228A/C/F. Requires accessory item N9910X-713 BNC to SMB cable for DC bias variable voltage
source to noise source connection.
Requires spectrum analyzer mode (Option 233 on combination models). Recommend GPS receiver
(Option 307) and internal preamplifier (Option 235). Supported only on N995xA and N996xA models,
since phased array antenna operates at 28 GHz.
Array Antenna (360), OTA LTE (370), and OTA 5GTF (377). Mapping is currently not available in SA
or RTSA modes. Outdoor mapping requires the availability of GPS (Option 307). Maps can be saved
to the FieldFox internal memory, SD card or USB drive. Using a direct wired LAN connection,
FieldFox will automatically access OSM once location coordinates (latitude and longitude) and zoom
levels have been entered the Map Explorer menu. If using the l
map files can be downloaded to a .zip file and imported to FieldFox internal memory. If the FieldFox
GPS receiver is enabled and OSM maps have been previously saved to FieldFox with those GPS
coordinates, FieldFox can automatically load the corresponding map to match the current GPS
coordinates.
FieldFox Map Support Tool, OSM
RTSA
Option 350
measurements (Option 358)?
19. What is required for 5GTF
over-the-air (OTA)
measurements (Option 377)?
20. What is required for N6820ES
Surveyor 4D software?
technologies Triaxial Isotropic Antenna model SDIA-6000 30 MHz to 6 GHz. EMF measurements are
supported with spectrum analyzer mode (Option 233 on combination models).
Recommend 32, 44 or 50 GHz FieldFox model (N995xA and N996xA) to support 5GTF FR2
frequency of 28 GHz. Requires spectrum analyzer mode (Option 233 on combination models). Also
recommend GPS receiver (Option 307) and internal preamplifier (Option 235). FieldFox models 26.5
GHz and below will require external mixer to down convert millimeter wave frequency to intermediate
frequency (IF). For Keysight direct sales, mixer is orderable as Keysight model N9910XM28-H2A. For
indirect sales, the mixer is orderable as OML Inc. model M28H2ADC-K, please see website
www.omlinc.com for more information or contact a Keysight representative. OML mixer RF input
interface is 2.92 mm (f).
Surveyor 4D software connected to FieldFox spectrum analyz er mode offers a versatile, truly
portable spectrum monitoring system that covers VLF to 50 GHz, including 5G millimeter wave
bands. The software runs on an external PC or tablet. FieldFox required options include spectrum
analyzer mode (Option 233 on combination models), preamplifier (Option 235) and built-in GPS
receiver (Option 307). Core Surveyor 4D software for Windows (Option N6820ES-114) is required to
run the Surveyor 4D software. Other Surveyor 4D software optional licenses that are supported
include basic modulation recognition application (N6820ES-MR1) and universal signal detection
(N6820ES-USD). Requires Surveyor 4D software version 4.3 or later (May 2019).
1
RTSA trace recordings can be recalled and played back in SA mode Spectrogram. This has the added benefit that the measurements are
shown ‘slower’, making it easier for the human eye to decipher the signal content.
SA analyzer: Required: Option 220. Recommended: 235, 307
Power splitter 11667A (Type-N) or 11667B (3.5 mm) or 11667C (2.4 mm) 1
Type-N(m) to Type-N(m) adapter N9910X-850 (for use with 11667A or Type-N systems) 1
Trigger cables 1 N9910X-712, SMA(m) to BNC(f)
N9910X-713, SMB(m) to BNC(m)
RF test cable Connecting FieldFox source port 1 to power splitter input 1
RF test cable or adapter Connecting power s plitter output arm to FieldFox port 2 1
RF jumper cable or adapter Power splitter output arm to DUT input 1
RF jumper cable or adapter DUT output to FieldFox receiver port 2 1
LAN cable LAN cable to connect two FieldFox units directly, or the analyzers must be on
the LAN
N9910X-825 GPS antenna, recommended. Necessary if Option 307 is ordered. 2
2
2 of each
Total of 4 cables
1
Figure 1: ERTA system diagram
1
The trigger cables and LAN cables must be at least as long as the separation distance between the two ends of the DUT.
Find us at www.keysight.com Page 10
FAQs – Applicable To All FieldFox RF and Microwave Analyzers
Question
Answer
2. What is the difference between
1. What USB power sensors work
with Option 302?
USB power sensor (Option 302)
and built-in power meter (Option
310)?
All Keysight U2000x Series USB power sensors are supported with FieldFox.
Visit: www.keysight.com/find/fieldfoxsupport for an up-to-date listing.
Option 302
USB power sensor
Description Option 302 allows users to
connect a USB power
sensor to FieldFox's USB
port and make broadband
power measurements
External hardware USB power sensor
required
Power
measurement
Frequency range Depends on USB sensor Frequency range of the analyzer
Settings Set CW frequency Set CW frequency, Set channel width/span
Power range Depends on USB sensor Depends on channel width and attenuator setting.
Warm-up time 30 minutes to meet
Accuracy Depends on USB sensor InstAlign accuracy: ± 0.5 dB typical for a CW
Programmable Yes, via SCPI Yes, via SCPI
Physical
connection
FieldFox source
control
Broadband diode detector,
measures all frequencies
accuracy specifications
The power sensor can
easily be moved to the
measurement point, with a
USB cable connecting the
detector to FieldFox.
Yes, on/off, and nominal
power level control
Option 310
Built-in power meter (or channel power meter)
Option 310 is a channelized power measurement
capability built into FieldFox analyzers. Maximum
bandwidth is 100 MHz.
None. Uses internal receiver.
Tuned receiver, so measures frequencies within
defined channel bandwidth
No warm-up time required
signal. Since the measurement is within a certain
frequency channel or bandwidth, to make an
accurate measurement, the user needs to know
the exact center frequency and the signal's
bandwidth and set those accurat ely.
The measurement point needs to be connected to
FieldFox's RF input port. If an RF jumper cable is
used, the user needs to account for the loss of the
cable with an offset value (can be entered into the
analyzer).
No access to FieldFox's source from the built-in
power meter mode
Find us at www.keysight.com Page 11
Question
Answer
3. What do I need to get GPS
information?
1. The recommended GPS solution is to order:
4. What is the connector for Option
The DC output has a SMB (m) connector. Recommend ordering N9910X Option 713 bias-tee power
6. What is Option 030 rem ote
1. Option 030 provides a license for FieldFox to allow remote control via an iOS device.
8. What measurement capabilities
- Option 307 - built-in GPS receiver
- A GPS antenna such as N9910X-825
- Other GPS antennas can also be used
- The GPS connector on the instrument is SMA (f)
2. Alternatively, you can purchase a USB-based GPS receiver. You do not need to purchase any
FieldFox options for the USB-based GPS to work. However, the USB-based GPS only provides
time and location data, and time synchronization capability. It cannot be used to increase the
frequency accuracy of the instrument.
309, DC output?
5. What are the connectors for the
Reference/Trigger In and
Reference/Trigger Out?
control capability?
7. What USB sensor is required for
Option 330?
are included with Option 330?
9. What is included with Option
208?
cable SMB (f) to BNC (m).
The connector for the Ref/Trig In is SMA (f). Recommend ordering N9910X Option 712 Trig/Ref in
SMA (m) to BNC (f) cable.
The connector for the Ref/Trig Out is SMB (m). Recommend ordering N9910X Option 713 bias-tee
power cable SMB (f) to BNC (m).
2. Not supplied by user, but necessary for operation of Option 030 are:
- iOS device: iPad, iPhone, or iPod Touch with iOS 6.1 or higher with free FieldFox app
- A WiFi or 3G/4G network connection between FieldFox and iOS device
Option 330 or pulse measurements requires a Keysight USB peak power sensor. Visit
www.keysight.com/find/usbsensorsforfieldfox for a list of supported peak power sensors. Average
power sensors cannot be us ed with Option 330, only peak power sensors. The peak power sensor
needs to be purchased separately. Option 330 or pulse measurement requires Option 302 and
Keysight USB power sensor
Average power, peak power, and peak to average ratio
Analog gauge display and digital display, dBm and watts
Relative/absolute measurements, dB or %, minimum and maximum limits
Trace graph for pulse profiling with gating
Rise time, fall time, pulse width, pulse period, pulse repetition frequency
Option 302, USB power sens or measurements, includes CW power measurements (one frequency at
a time). With Option 208 added, you can make swept-frequency power measurements. You can plot
source power, gain, and receive power ver sus frequency. Additionally, the source frequency can be
offset from the receiver frequency. The power sensor needs to be purchased separat ely.
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FieldFox Microwave Vector Network Analyzers
Model
Description
Frequency
Test port connectors
N9927A
18 GHz FieldFox microwave VNA
30 kHz to 18 GHz
Type-N (f)
Vector network analysis/CAT
010
VNA time domain
Recommend 211. See page 14, FAQ #3
211
VNA full 2-port S-parameters
—
308
Vector voltmeter
211 required to obtain full VVM functionality. See page 14, FAQ #5
Power measurements
208
USB power sensor meas. versus frequency
Requires 302
330
Pulse meas. with USB peak power sensor
Need to order USB peak power sensor. See page 12, FAQs #7 and #8
System features
030
Remote control capability
Requires an iOS device
Analyzer models
Step 1. Select the model that provides the desired frequency range.
N9928A 26.5 GHz FieldFox microwave VNA 30 kHz to 26.5 GHz 3.5 mm (m)
A standar d N992xA FieldFox microwave VNA includes transmission/reflection measurement capability. Additional functionality such as full 2-port
S-parameters can be added using the options listed below.
Analyzer options
Step 2. Select optional measurement capabilities. Any of these options can easily be added as a software upgrade in the future.
Option Description Prerequisite options/notes
112 QuickCal See page 14, FAQ #7
212 1-port mixed-mode S-parameters Requires 211
215 TDR cable measurements Requires 305
305 Cable and antenna analyzer —
302 USB power sensor support Need to order USB power sensor 1
310 Built-in power meter No power sensor required. See page 11, FAQ #1
307 GPS receiver Need to order GPS antenna, N9910X-825. See page 12, FAQ #3
309 DC bias variable-voltage source Recommend N9910X-713 cable, see page 12, FAQ #4
1
List of compatible sensors available from www.keysight.com/find/fieldf oxsupport
Find us at www.keysight.com Page 13
FieldFox Microwave Vector Network Analyzer FAQs
Question
Answer
4. What is included with N992xA
Measurements: DTF (dB, Linear, VSWR), return loss and DTF, return Loss (dB), and 1-port cable loss,
QuickCal is most accurate for DUTs with 7/16 and Type-N connectors and measurement uncertainties
Additional FAQs on pages
FAQs on pages 11 and 12 apply to all microwave FieldFox models.
1. What is included with a base
N992xA analyzer?
2. What is included with N992xA
Option 211?
3. What is included with N992xA
Option 010?
Option 305?
5. What is included with N992xA
Option 308?
6. If I have the full 2-port VNA
with time domain, why would I
order Option 305? What
additional functionality is
available?
7. What is included with N992xA
Option 112?
Measurements: Transmission/reflection or S21 and S11, magnitude and phase
Calibrations: CalReady, OSL, response, and enhanced response cal
Option 211 adds full 2-port S-parameter capability
Measurements: All four S-parameters (S11, S21, S22, S12), magnitude and phase
Calibrations: CalReady, OSL, response, enhanced response, and full 2-port cal
S11/S21 in time domain. To get time domain data for all four S-parameters and full 2-port cal, order
Option 211
View both time and frequency domain data at the same time
Low-pass, impulse, and band-pass modes
Minimum, normal, and maximum window
Gating
2-port insertion loss
TDR (linear, ohm). TDR measurements require Option 215, in addition to Option 305.
Calibrations: CalReady, OSL, and response cal
N992xA with Option 308: 1-port cable trimming, 2-port transmission
N992xA with Options 308 and 211: 1-port cable trimming, 2-port transmission, A/B and B/A
Note: A/B and B/A measurements require an external source
CAT mode's basic measurements are similar to VNA measurements. The features listed below are often
used for distance-to-fault cable testing and are only available in CAT mode:
- 3-peak marker tracking for finding faults for DTF measurements
- 1-port cable loss
- Cable type selection and editing, includes the cable's velocity factor and loss
QuickCal is included with Option 112.
- 1-port and enhanced response QuickCal with a base analyzer
- 1-port, enhanced response, and 2-port QuickCal with a full 2-port analyzer (one that has Option
211).
are provided for frequencies 18 GHz. Reduced accuracy for DUTs with 3.5 mm (m), SMA (m), or other
male coaxial connectors; performance is unspecified. QuickCal is not recommended for DUTs with
3.5 mm (f), SMA (f), or other similar female connectors. QuickCal is not applicable to waveguide.
11 and 12.
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FieldFox Microwave Spectrum Analyzers
Model
Description
Frequency range 1
Test port connectors
N9937A
18 GHz FieldFox microwave spectrum analyzer
100 kHz to 18 GHz
Type-N (f)
N9938A
26.5 GHz FieldFox microwave spectrum analyzer
100 kHz to 26. 5 GHz
Type-N (f) 2
N9960A
32 GHz FieldFox microwave spectrum analyzer
9 kHz to 32 GHz
NMD 2.4 mm (m)
N9961A
44 GHz FieldFox microwave spectrum analyzer
9 kHz to 44 GHz
NMD 2.4 mm (m)
Option
Description
Prerequisite options/notes
235
Pre-amplifier
—
236
Interference analyzer and spectrogram
—
238
Spectrum analyzer time gating
—
358
EMF measurements
Requires triaxial antenna. See page 9, FAQ #18
377
Over-the-Air (OTA) 5GTF 3
Requires 307, Recommend 235. See page 9, FAQ #19
Analyzer models
Step 1. Select the model that provides the desired frequency range.
4. What is the difference between Option 320 and the
CAT mode on the combo base model?
Interference analyzer and spectrogram
Trace playback and recor ding
Return loss and VSWR
Normalization using data/memory
Option 320 on the N993xA/N996xA SA offers RL and VSWR. CAT mode on the
N991xA/N995xA combo analyzers offer RL and VSWR, DTF, insertion loss, and
also various calibration capabilities such as QuickCal and OSL.
Additional FAQs on pages 11 and 12. FAQs on pages 11 and 12 apply to all microwave FieldFox models.
1
List of compatible power sensors available from www.keysight.com/find/fieldfoxsupport
2
Requires CPU2 fast processor. See page 9, FAQ #13.
Find us at www.keysight.com Page 16
metrics. Tune and listen are available as a standard feature on all N993xA and
N996xA FieldFox spectrum analyzers. AM/FM metrics becomes available when
Option 355 is purchased. AM/FM metrics provides the user with RF spectrum
view, demodulat ed baseband signal waveform, carrier power, frequency
deviation, SINAD and more.
Upgrades
030
Remote control capability
License key
Requires an iOS device
208
USB power sensor measurements versus frequency
License key
302
210
VNA transmission and reflection
License key
None
211
VNA full 2-port S-parameters
License key
210
236
Interference analyzer and spectrogram
License key
233
238
Spectrum analyzer time gating
License key
233
307
GPS receiver
License key
None
310
Built-in power meter
License key
None
330
Pulse measurements
License key
Need to order USB peak power sensor
352
Indoor and outdoor mapping
License key 2
233, 307, and at least one of 312, 360,
356
Noise figure (NF)
License key
233, 235, 309 and accessory cable
377
Over-the-Air (OTA) 5GTF
License key 2
233 and 307, recomm end 235
Information on upgrades is available from: www.keysight.com/find/fieldfoxsupport
209 is a system based on two FieldFox units. See page 8, FAQ #10, for a detailed description of the system requirements.
2
On N9938A, Option 320 is only available as a software upgrade if the spectrum analyzer is already equipped with Option 100, which is
3.5 mm connectors on the test port. Option 100 must have been ordered at the time of original purchase. It cannot be upgraded later.
3
Requires CPU2 fast processor. See page 9, FAQ #13.
4
See page 9, FAQ #15 for external preamplifier and noise source requirements.
Find us at www.keysight.com Page 18
FieldFox VNA upgrades
Option
Description
Upgrade contents
Additional requirements
010
VNA time domain analysis
License key
None
211
VNA full 2-port S-parameters
License key
None
215
TDR cable measurements
License key
305
309
DC bias variable-voltage source
License key
None
310
Built-in power meter
License key
None
Model number/Option
Description
Upgrade contents
Additional requirements
N99xxA-ABA
Printed User's Guide in English
N9925AU, N9926AU, N9927AU, N9928AU
030 Remote control capability License key None
112 Enable QuickCal License key None
208 USB power sensor measurements versus frequency License key 302
212 Mixed-mode S-parameters License key 211
302 External USB power sensor support License key None
305 Cable and antenna analyzer License key None
307 GPS receiver License key None
308 Vector voltmeter License key 211 required to obtain full VVM functionality
330 Pulse measurements License key Need to order USB peak power sensor
Information on upgrades is available from: www.keysight.com/find/fieldfoxsupport.
FieldFox RF and microwave analyzers hardware upgrades
1, 2
N9910HU-100 N9913/14/15/16/17A processor
upgrade
N9910HU-200 N9925/26/27A processor upgrade Improved performance for
N9910HU-300 N9935/36/37A processor upgrade Improved performance for
N9910HU-400 N9918/28/38A processor upgrade Improved performance for
Improved performance for
N9915/16/17A models
N9925/26/27A models
N9935/36/37A models
N9918/28/38A models
Return to service center only
Return to service center only
Return to service center only
Return to service center only
Documentation
By default, a printed copy of the User’s Guide is not included in FieldFox orders. If you wish to receive the printed User’s Guide,
please order N99xxA Option ABA.
Option Description Notes
N99xxA-0B0 Do not include User's Guide
The latest FieldFox User’s Guide (manual) is available online from: www.keysight.com/find/fieldfoxsupport. The Service Guide,
SCPI Programming Guide, Quick Reference Guide, and Data Link software help file can also be found via the website above.
1
Upgrades are not available for FieldFox analyzers with serial number prefix starting MY5607/SG5607/US5607, as these analyzers already
have the improved hardware.
2
Please cont act your local Keysight Service Center for instructions on how and where to send the instrument and how to order the factory upgrades.
Find us at www.keysight.com Page 19
Calibration Kits
Model
Description
Connector
Frequency range
Components
7-16
N9910X-802
3-in-1 OSL Cal kit
7/16 (m)
DC to 4 GHz
Open, short, load (all male)
N9910X-803
3-in-1 OSL Cal kit
7/16 (f)
DC to 4 GHz
Open, short, load (all female)
Type-N, 50 Ω
85514A
4-in-1 OSLT cal kit
Type-N (m)
DC to 9 GHz
Open, short, load, thru (all male)
85515A
4-in-1 OSLT cal kit
Type-N (f)
DC to 9 GHz
Open, short, load, thru (all
85032F
Standard cal kit
Type-N
DC to 9 GHz
Open, short, load (both female
85518A
4-in-1 OSLT cal kit
Type-N (m)
DC to 18 GHz
Open, short, load, thru (all male)
85519A
4-in-1 OSLT cal kit
Type-N (f)
DC to 18 GHz
Open, short, load, thru (all
85054D
Economy cal kit
Type-N
DC to 18 GHz
Open, short, load, thru (both
N4690D
ECal, 2-ports
Type-N
300 kHz to 18 GHz or
Connectors configurable
N7552A
ECal economy, 2-ports
Type-N
DC to 9 GHz
Connectors configurable
N7553A
ECal economy, 2-ports
Type-N
DC to 14 GHz
Connectors configurable
Type-N,75 Ω 2
85036B
Standard cal kit
Type-N 75 Ω
DC to 3 GHz
Open, short, load (both female
85096C
ECal, 2-ports
Type-N(m) 75 Ω
300 kHz to 3 GHz
Connectors configurable
FieldFox analyzers support most standard HP/Agilent/Keysight mechanical calibration kits and all Keysight USB ECal modules .
Component list shows calibration components, some calibration kits also include adaptors. Custom calibration kits can be created
and uploaded to FieldFox using Data Link software.
85038A Standard cal kit 7/16 DC to 7.5 GHz Open, short, load (both female
and male)
N9910X-800 1 3-in-1 OSL cal kit Type-N (m) DC to 6 GHz Open, short, load (all male)
N9910X-801 1 3-in-1 OSL cal kit Type-N (f) DC to 6 GHz Open, short, load (all female)
85032E Economy cal kit Type-N (m) DC to 6 GHz Open, short, load (all male)
female)
and male)
female)
female and male)
85054B Standard cal kit Type-N DC to 18 GHz Open, short, fixed load, sliding
OML frequency extenders can be purchased directly through OML, Inc. One mixer, OML model number M28H2ADC-K (24 to 40 GHz), has been
set up as a Keysight special handling part number N9910XM28-H2A and is available for sale directly through Keysight. Contact OML, Inc. directly
(www.omlinc.com) for pricing, ordering and datasheet information or contact a Keysight representative for assist ance.
FieldFox operating modes that support frequency extenders include: Spectrum analyzer, real-time spectrum analyzer, I/Q analyzer, over-the-air
(LTE FDD, 5GTF), phased array antenna support and PathWave vector signal analysis software (formerly 89600 VSA).
OML model number OML mixer frequency range
models N9918/38A, N9917/37A, and
N995x/6xA
Frequency range with FieldFox
models N9916/36A
M28H2ADC-K 1 24 to 40 GHz 24 to 40 GHz 24 to 34 GHz
M15H4ADC 50 to 75 GHz 50 to 75 GHz 50 to 62 GHz
1
Not applicable to N9951/ 61A and N9952/62A models with maximum frequency coverage of 44 and 50 GHz.
Find us at www.keysight.com Page 23
RF and microwave adapters
83059A
Coaxial adapter, 3.5 mm (m) to 3.5 mm (m), 26.5 GHz
83059B
Coaxial adapter, 3.5 mm (f) to 3.5 mm (f), 26.5 GHz
N9910X-602
Coaxial adapter, NMD 2.4 mm (f) to 2.92 mm/K (f), 40 GHz
N9910X-603
Coaxial adapter, NMD 2.4 mm (f) to 3.5 mm (f), 26.5 GHz
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
Find us at www.keysight.com Page 27
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