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FieldFox Handheld Analyzers
4/6.5/9/14/18/26.5/32/44/50/54 GHz
This configuration guide describes configurations, options, and accessories for
the FieldFox B-Series family of portable analyzers. Use this guide, along with
the technical overview and data sheet, for a complete description of the
analyzers. The table on page 3 titled “FieldFox B-Series Family and Options”
shows a comparison of the functions available in the FieldFox B-Series family
of analyzers.
Note: Combination analyzer (combo) = Cable and antenna tester (CAT) +
Vector network analyzer (VNA) + Signal analyzer (SA).
Included Accessories
The following accessories
are included with every
FieldFox:
•
AC/DC adapter
•
Battery
•
Soft carrying case
•
LAN cable
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Table of Contents
FieldFox B-Series Family and Options
...................................................................................................... 3
FieldFox RF and Microwave (Combination) Analyzers
.............................................................................. 4
Analyzer options
.......................................................................................................................................... 5
FieldFox RF and Microwave (Combination) Analyzer FAQs
..................................................................... 6
ERTA System Typical Configuration ........................................................................................................... 10
FAQs – Applicable to all FieldFox RF and Microwave Analyzers
.......................................................... 11
FieldFox Signal Analyzers ........................................................................................................................... 13
Analyzer options .......................................................................................................................................... 13
FieldFox Signal Analyzer FAQs .................................................................................................................. 14
Upgrades ..................................................................................................................................................... 15
FieldFox Signal Analyzer Upgrades ............................................................................................................ 16
Documentation ............................................................................................................................................ 18
Calibration Kits ............................................................................................................................................ 18
Accessories ................................................................................................................................................. 19
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FieldFox B-Series Family and Options
Option
Description
Combination Analyzers
N9913/4/5/6/7/8B
N9950/1/2/3B
Signal Analyzers
N9933/4/5/6/7/8B
N9960/1/2/3B
CAT / vector network analysis
010
VNA time domain ✓ —
210
VNA transmission/reflection
✓
—
211
VNA full 2-port S-parameters
✓
—
212
1-port mixed-mode S-parameters
✓
—
215
TDR cable measurements
✓
—
305
Cable and antenna analyzer
Base model 1
— 2
308
Vector voltmeter ✓ —
320
Reflection meas. (RL, VSWR and scalar meas.)
— 3
✓
Spectrum analysis
209
Extended range transmission analysis (ERTA)
✓
✓
220
Tracking generator
— 4
✓
233
Spectrum analyzer
✓
Base model 1
235
Pre-amplifier
✓
✓
236
Interference analyzer and spectrogram
✓
✓
238
Spectrum analyzer time gating
✓
✓
312
Channel scanner
✓
✓
350
Real-time spectrum analyzer (RTSA)
✓
✓
351
I/Q analyzer (IQA)
✓
✓
352
Indoor and outdoor mapping
✓
✓
353
IQ streaming
✓
✓
355
Analog demodulation
✓
✓
356
Noise figure (NF)
✓
✓
358
EMF measurements
✓
✓
360
Phased array antenna support
✓
✓
361
EMI measurements
✓
✓
370
Over-the-air (OTA) LTE FDD
✓
✓
371
Over-the-air (OTA) LTE TDD
✓
✓
377
Over-the-air (OTA) 5G TF
✓
✓
378
Over-the-air (OTA) 5G NR
✓
✓
B04
Analysis bandwidth, 40 MHz 5
✓
✓
B10
Analysis bandwidth, 120 MHz 5
✓
✓
Power measurements
208
USB power sensor meas. versus frequency
✓
✓
302
USB power sensor support
✓
✓
310
Built-in power meter
✓
✓
330
Pulse meas. with USB peak power sensor
✓
✓
1. Ba se mo de l f un ction ality list ed is t he pr imary func ti on of th at i ns tru me nt. F or ex am ple , on th e N99 1x /5x B com bo anal yz ers , cable
an d ant en na an alyze r is the s ta ndard func tion inclu de d wit h eve ry N9 91 x/5 xB .
2. Op tio n 305 i s not avai la ble o n t he N993x/ 6xB . A sub set o f measu remen ts, r et urn l oss a nd VS WR , i s avail abl e as O pti on 32 0.
3. Op tio n 320 i s not a ppl ic abl e to N9 91x/5 xB. T he N991 x/ 5xB i ncl ud es re flect io n m ea surem en ts of re tu rn lo ss an d VSW R as st andar d
fu nctio ns.
4. On the N991x /5xB an aly ze rs, o rder Optio ns 23 3 and 2 10 to obta in a tr ack in g gen er ator wit h the s pectr um an al yzer. Ther e is no
Op tion 22 0 o n the N 991x/ 5xB a na lyz er s. Op tion 23 3 p ro vid es the sp ect ru m ana lyzer capabi lit y and O ption 2 10 th e “tr ac kin g”
ca pabil ity.
5. 10 MH z stand ar d.
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FieldFox RF and Microwave (Combination) Analyzers
Analyzer models
Step 1. Select the model that provides the desired frequency range.
Model
Description
CAT and VNA frequency
SA frequency 2
Test port connectors
N9913B
4 GHz FieldFox RF analyzer
30 kHz to 4 GHz
9 kHz to 4 GHz
Type-N (f)
N9914B
6.5 GHz FieldFox RF analyzer
30 kHz to 6.5 GHz
9 kHz to 6.5 GHz
Type-N (f)
N9915B
9 GHz FieldFox microwave analyzer
30 kHz to 9 GHz
9 kHz to 9 GHz
Type-N (f)
N9916B
14 GHz FieldFox microwave analyzer
30 kHz to 14 GHz
9 kHz to 14 GHz
Type-N (f)
N9917B
18 GHz FieldFox microwave analyzer
30 kHz to 18 GHz
9 kHz to 18 GHz
Type-N (f)
N9918B
26.5 GHz FieldFox microwave analyzer
30 kHz to 26.5 GHz
9 kHz to 26.5 GHz
3.5 mm (m)
N9950B
32 GHz FieldFox microwave analyzer
300 kHz to 32 GHz
9 kHz to 32 GHz
2.4 mm (m)
N9951B
44 GHz FieldFox microwave analyzer
300 kHz to 44 GHz
9 kHz to 44 GHz
2.4 mm (m)
N9952B
50 GHz FieldFox microwave analyzer
300 kHz to 50 GHz
9 kHz to 50 GHz
2.4 mm (m)
N9953B
54 GHz FieldFox microwave analyzer
300 kHz to 54 GHz
9 kHz to 54 GHz
1.8 mm (m)
1. Mo de ls N9 91 3/33B , N9914 /3 4B an d N9915 /3 5B do n ot su pport f reque nc y ext en ders. T his i s bec au se the mixer s’ star ting LO
fr eq uen cy is h ig her t ha n 9 G Hz an d the F ieldFox P ort 1 prov id es th e LO to the mi xer. For a list o f sup po rt ed OM L fre qu ency
ex te nde rs , see A cc ess ories p ag e 22.
2. Us eab le to 5 k Hz.
Option
Description
Combination Analyzers
N9913/4/5/6/7/8B
N9950/1/2/3B
Signal Analyzers
N9933/4/5/6/7/8B
N9960/1/2/3B
System features
030
Remote control capability
✓
✓
307
GPS receiver
✓
✓
309
DC bias variable-voltage source
✓
✓
—
Frequency extender support 1
✓
✓
Windows based software
89601B
PathWave VSA (89600 VSA) software
✓
✓
N6820ES
Surveyor 4D software
✓
✓
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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
CAT / vector network analysis
010
VNA time domain
Requires 210, recommend 211. See FAQ #7
210
VNA transmission/reflection
Recommend ordering a calibration kit. See FAQ #4 and FAQ #6
211
VNA full 2-port S-parameters
Requires 210, recommend ordering a calibration kit. See FAQ #5
212
1-port mixed-mode S-parameters
Requires 210 and 211
215
TDR cable measurements
—
308
Vector voltmeter
210 and 211 required for full VVM functionality. See FAQ #8
Spectrum analysis
209
Extended range transmission analysis
(ERTA)
Requires 233 and 210. Recommend 307. Requires two FieldFox units. See FAQ # 9.
See page 10 for typical configuration.
233
Spectrum analyzer
—
235
Pre-amplifier
Requires 233
236
Interference analyzer and spectrogram
Requires 233
238
Spectrum analyzer time gating
Requires 233
312
Channel scanner
Requires 233. Require the corresponding option to support a specific app. For example,
to support EMF in channel scanner requires 358.
350
Real-time spectrum analyzer (RTSA)
Requires 233, Recommend 235. See FAQ # 11
351
I/Q Analyzer (IQA)
Requires 233
352
Indoor and outdoor mapping
Requires 233, 307, and at least one of 312, 360, 370, 371, 377 or 378. See FAQ #15
353
IQ streaming
Requires 233 and 351
355
Analog demodulation
Requires 233
356
Noise Figure (NF)
Requires 233, 235, 309 and accessory item N9910X-713 BNC to SMB cable. See FAQ
#13 for external preamplifier and noise source requirements.
358
EMF measurements
Requires 233. Also requires triaxial antenna. See FAQ #16
360
Phased array antenna support
Requires 233. Also requires phased array antenna. N991x/3xB (x > 5) models require
external mixer. No external mixer required for N995x/6xB models. See FAQ #14
361
EMI measurements
Requires 233
370
Over-the-air (OTA) LTE FDD
Requires 233 and 307. Recommend 235.
371
Over-the-air (OTA) LTE TDD
Requires 233 and 307. Recommend 235.
377
Over-the-air (OTA) 5G TF
Requires 233 and 307. Recommend 235. N991x/3xB (x > 5) models require external
mixer. See FAQ #14 No external mixer required for N995x/6xB models. 5G TF is pre-5G
standard
378
Over-the-air (OTA) 5G NR
Requires 233, B10, and 307. Recommend 235. N991x/3xB (x > 5) models require
external mixer for FR2 frequencies above 26.5 GHz. See FAQ #18. No external mixer
required for N995x/6xB models.
B04
Analysis bandwidth, 40 MHz 1
Requires 233. Recommend 350, 351 or PathWave VSA (formerly 89600 VSA) software
B10
Analysis bandwidth, 120 MHz 1
Requires 233. Recommend 350, 351, 378 or PathWave VSA (formerly 89600 VSA)
software.
Power measurements
208
USB power sensor meas. versus frequency
Requires 302. See FAQ I
302
USB power sensor support
Need to order USB power sensor 2. See FAQ A
310
Built-in power meter
No power sensor required. See FAQ B
330
Pulse meas. with USB peak power sensor
Requires 302 and USB peak power sensor. See FAQ G and FAQ H
1
. 10 MHz st and ar d.
2. L ist o f com patib le se ns ors a vaila ble f rom www.k eysig ht .co m/ find/ field foxsu pp ort .
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Option
Description
Prerequisite options/notes
System features
030
Remote control capability
Requires an iOS device or an Android device
307
GPS receiver
Need to order GPS antenna, N9910X-825. See FAQ C
309
DC bias variable-voltage source
Recommend N9910X-713 cable. See FAQ D
—
Frequency extender support
Requires 233. Optional 350, 351, 360, 370, 371, 377, 378, PathWave VSA (formerly
89600 VSA) software. See Accessories, page 22
Windows based software
89601B
PathWave VSA (89600 VSA) software
Requires 233
N6820ES
Surveyor 4D software
Requires 233, 235 and 307. See FAQ #17
FieldFox RF and Microwave (Combination) Analyzer FAQs
Question
Answer
1. What is included with a base
N991x/5xB analyzer?
The base model includes the cable and antenna analyzer
Measurements: DTF (dB, linear, VSWR), return loss and DTF, return loss (dB), and 1-port cable loss
Calibrations: CalReady, OSL, and response calibration
Note: 2-port insertion loss is NOT included with the base model, if 2-port insertion loss is needed, order
Option 210
Note: Base analyzer does not have phase information, for S11 or S21 phase, order Option 210
2. What is included with N991x/5xB
Option 233?
Basic spectrum analysis, four traces, different detector types, radio standard selection, limit lines
Channel power, occupied bandwidth, adjacent channel power, spectrum emission mask
AM/FM tune and listen, field strength measurements, antenna factors, frequency counter 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 auto coupled to SA’s center frequency) - included
• TG tracking mode (traditional TG operation, swept SA coupled to swept source) - (requires Option 210)
3. What is included with N991x/5xB
Option 236?
Interference analyzer and spectrogram, trace playback and recording
4. What is included with N991x/5xB
Option 210?
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 calibration
If you need all four S-parameters, order Options 210 and 211
If you need 2-port calibration, order Options 210 and 211
Adds tracking mode to the tracking generator/independent source included with Option 233, spectrum
analyzer
5. What is included with N991x/5xB
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 calibration
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Question
Answer
6. Can I measure group delay on
N991x/5xB analyzers?
If you have phase measurement 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.
7. What is included with N991x/5xB
Option 010?
S11/S21 in time domain if Option 210 is ordered. To get time domain data for all four S-parameters and full
2-port calibration, 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
8. What is included with N991x/5xB
Option 308?
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
9. What are the requirements for
Option 209?
Extended Range Transmission Analysis (ERTA) or Option 209 is a scalar measurement system 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 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:
• FieldFox combination analyzers: N9913/14/15/16/17/18/50/51/52/53B
• FieldFox signal analyzers: N9933/34/35/36/37/38/60/61/62/63B
The two FieldFox units used in ERTA do not have to be the same model.
ERTA requires the following options on Combo FieldFox models (N9913/14/15/16/17/18/50/51/52/53B):
• Option 210, VNA transmission/reflection
• Option 233, spectrum analyzer
ERTA requires the following options on SA FieldFox models (N9933/34/35/36/37/38/60/61/62/63B)
• 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 power 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
E. LAN connection – For ERTA, the two FieldFox units communicate via a LAN connection. For a direct
connection, a LAN cable is required. Or, both analyzers can be on a local area network.
Recommended accessory
F. N9910X-825, GPS Antenna. Necessary if Option 307 is ordered.
10. What is included with Option 355?
FieldFox analog demodulation has two parts: (1) Tune and listen, and (2) AM/FM metrics. Tune and 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.
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Question
Answer
11. What is included with Option 350?
Real-time spectrum analyzer (RTSA) or Option 350 provides real-time measurements. The FieldFox must
be equipped with spectrum analysis capability. The preamplifier option is recommended, as elusive signals
often have low power levels. The real-time bandwidth options include 10 MHz (standard), 40 MHz (Option
B04), or 120 MHz (Option B10). RTSA includes trace recording and playback capabilities. It does not
include a frequency-mask trigger (FMT).
12. Is Spectrum Analyzer Trace
Recording and Playback standard
or an option?
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).
Trace record/playback features
SA mode
SA & Interference Analyzer
Options 233 and 236
RTSA mode
RTSA
Option 350
Record and playback spectrum traces
Yes
Yes
Save trace data with GPS time stamp over time
Yes
Yes
Record and playback spectrogram data
Yes
No 1
13. What are the requirements for
Noise figure (NF) Option 356?
Requires spectrum analyzer mode (Option 233 on combination models), internal preamplifier (Option 235)
and DC bias variable voltage source (Option 309). 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.
14. What is required for phased array
antenna support (Option 360) and
5G NR over-the-air (OTA)
measurements (Option 378)?
Requires spectrum analyzer mode (Option 233 on combination models) and GPS receiver (Option 307).
Highly recommend internal preamplifier (Option 235). N991x/3xB (x>5) models require external mixer
since phased array antenna, which can be ordered as Keysight 85571A-028 or directly from Anokiwave as
AWMF-0129, operates at 28 GHz. See FAQ #18 for more OML mixer information. No external mixer
required for N995x/6xB models.
15. What is included with indoor and
outdoor mapping (Option 352)?
The FieldFox mapping function is available in the following modes: Channel Scanner (312), Phased-Array
Antenna (360), and OTA LTE FDD/TDD (370/371), OTA 5G TF (377), OTA 5G NR (378). 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 OpenStreetMap (OSM) once location coordinates (latitude
and longitude) and zoom levels have been entered the Map Explorer menu. If using the l FieldFox Map
Support Tool, OSM 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.
16. What is required for EMF
measurements (Option 358)?
Requires triaxial antenna. Supported antenna is AGOS advanced technologies Triaxial Isotropic Antenna
model SDIA-6000 30 MHz to 6 GHz. It can also be ordered as Keysight 85572A-006. EMF measurements
are supported with spectrum analyzer mode (Option 233 on combination models) and OTA 5G NR (Option
378).
1
. RT SA tr ac e r ec ordin gs ca n be re cal le d and play ed ba ck in S A mod e Spe ct rog ra m. Th is ha s the a dded benef it th at
th e mea su rem en ts ar e sho wn ‘s lo wer’, maki ng it e asi er f or th e hum an eye to de ci phe r the s ignal c ont en t.
Fi nd us at www.keysight.com Pa ge 9
Question
Answer
17. What is required for N6820ES
Surveyor 4D Software?
Surveyor 4D software connected to FieldFox spectrum analyzer 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). Frequencies above 26.5 GHz will require external mixer for N991x/3xB (x>5)
models. For external mixer information, FAQ #18. N995x/6xB models eliminate the external mixer
requirement.
18. What is required for 5G NR overthe-air (OTA) measurements (Option
378)?
Requires spectrum analyzer mode (Option 233 on combination models), 120 MHz analysis bandwidth
(Option B10) and GPS receiver (Option 307). Highly recommend internal preamplifier (Option 235). FR2
frequencies above 26.5 GHz will require external mixer for N991x/3xB (x>5) models. N995x/6xB models
eliminate the external mixer requirements. For Keysight direct sales, mixer is orderable as Keysight model
N9910XM28-H2A for 3.5 mm test ports or N99010xM28-H2N for type N test ports. 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). See Page
22 “Accessories” section for other supported OML mixers and OML frequency extender module adapter
kits.
Keysight model: N9910XM28-H2A/N9910XM28-H2N or OML model: M28H2ADC-K
Supported on FieldFox models
N9916B, N9917B, N9918B, N9936B, N9937B, N9938B
RF input frequency range
24 to 40 GHz
IF output frequency range
0.3 to 6.5 GHz
LO harmonic number
2 LO input frequency range
12 to 20 GHz
LO input power
-18 to -5 dBm
Conversion factor IF = 1 GHz
10 dB (typical)
Noise figure
12 dB
(Includes internal IF amplifier)
1. T his d iagra m is fo r O ML M28H 2A DC -K or Keys ight N9 910 XM 28 -H2A. In c ase o f Key si ght N 9910X M2 8- H2N , the m ix er co nnect ors
fo r LO Input a nd IF Outp ut ar e both Type -N. S ee “O ML fr equency exte nd er mo dules ” and “ OML f reque ncy e xt end er modu le
ad apter kits ” sec ti ons o n page 22 fo r fur th er de tai ls .
Figure 1. OML external mixer diagram 1
OML mixer IF Output (Port 2) SMA (f) to
FieldFox RF Input (Port 2) 3.5 mm (m)
OML mixer RF Input 24 to 40 GHz 2.92 mm (f)
OML mixer DC +5V SMB (m) to
FieldFox USB port +5V
OML mixer DC +5V SMB (m) to
FieldFox USB port +5V
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