Agilent Technologies N9912A FieldFox RF Analyzer

Agilent Technologies N9912A FieldFox RF Analyzer
Agilent FieldFox RF Analyzer
N9912A 4/6 GHz
Technical Overview
Tackle Complex
Networks in Less Time
With the proliferation of wireless
communications, operating
frequencies have soared from
sub-GHz levels up to 5.8 GHz.
As a result, service providers
are required to build more base
stations to cover the same size
coverage area. This means you
and your technicians need to
deploy and maintain more cell
sites than you previously did in
the same amount of time. To do
this efficiently, a multi-functional
and reliable tool is required.
The Agilent FieldFox RF Analyzer
is the tool to tackle today’s
increasingly complex networks
in less time.
World’s Most Integrated
Handheld RF Analyzer
Key measurements
•Cable and antenna test (distance to
fault, return loss, etc.)
•Cable loss measurement
•Insertion loss and transmission
•Spectrum analyzer
•Power meter with USB power sensor
•Vector network analysis with Smith
chart display
•Vector voltmeter
Key differentiators
•Integrated QuickCal calibrates without
a calibration kit
•Immediate calibration with CalReady
•50 percent faster than traditional
handheld instruments
•Superior dynamic range (96 dB) and
sensitivity (-148 dBm) in the spectrum
analysis mode
•Easy-to-use, task-driven user interface
Task-driven Features
7.4” W
188 mm
Connector covers
help keep dust out
Anti-glare 6.5 inch
LCD display with
LED backlight
Convenient side
strap makes it
easy to hold and
11.5” H
292 mm
Task-driven keys
are grouped to
easily and
naturally perform
standard field
Portrait design and
large buttons for
easy operation —
even with gloves on
Dedicated marker keys for
quick marker function access
Backlit keypad
2.8” D
72 mm
RF Out
External reference
Connector bay protects
RF connectors
Easily accessible
battery compartment
Spacious connector design makes
connections fast and simple
LAN port for fast
data transfer
SD flash card slot for
additional data storage
shoulder strap clips
headphone jack
USB ports for convenient
data transfer
Gasketed doors protect
ports from moisture
Key Measurements
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, unnecessary 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.
Insertion loss display
Return loss and DTF dual display
Return loss and DTF
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.
Measurements in the field
without the need to manually
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 accurate measurements such
as one-port cable loss, VSWR, return loss,
and DTF measurements at the test port.
Calibration Wizard
Industry’s first and only
The industry’s first and only built-in calibration system allows you to calibrate the cable/
antenna tester without carrying a calibration
kit into the field. As with any test instrument,
when you add an additional device to the test
port, such as a jumper cable or attenuator, you
need to calibrate using a calibration kit (cal kit).
QuickCal eliminates the hassle of carrying
and using a cal kit, plus provides worry-free
accuracy and excellent repeatability every
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.
Built-in spectrum 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. Inter-ference has a direct impact on the quality
of service of wireless communication
FieldFox has an optional built-in spectrum
analyzer that covers frequency ranges
from 100 kHz to 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
Spectrum analyzer display
Network analysis
FieldFox has an optional network analyzer mode
that provides standard vector network analyzer
measurements such as S11, S11 phase, a Smith
chart display, and S21 magnitude (requires
Option 110).
Power meter
FieldFox can connect with the Agilent U2000
Series USB power sensor to make RF/microwave
power measurements up to 24 GHz.
FieldFox provides true average power measurements with a wide dynamic range from -60 dBm
to +44 dBm.
The sensor has an internal zeroing function,
and external calibration is not needed.
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. This option covers the 2 MHz to
6 GHz frequency range.
Vector voltmeter
Using FieldFox’s vector voltmeter (VVM), the
phase shift and electrical length of a device can
be measured.
Transmission measurement
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. Since every FieldFox is CalReady,
no calibration is needed if VVM measurements
are done at the test port.
VVM applications:
• Cable trimming of phase matched cables
• Verifying the isolation of 2-port components
• Radio navigation – VHF omnidirectional radio range (VOR) and instrumentation landing system (ILS)
FieldFox offers much of the VVM functionality
of the popular HP/Agilent 8508A, in a handheld
portable form factor, and without the need for
the source/bridge/accessories required with
the 8508A.
Feature and Benefit Summary
Comprehensive measurement capabilities
Cable and antenna
• 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.
Perform and view return loss and distance to
fault measurements at the same time
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 two-port 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 accurate measurements such as one-port cable loss, VSWR, return loss, and DTF
at the test port.
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. QuickCal also corrects
drift errors caused by temperature changes during instrument
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
-88 dBc at 10 kHz, and a third order intercept (TOI) better than
+18 dBm.
Power meter
Makes accurate true average power measurements without
bringing a power meter along. The state-of-the-art Agilent USB
power sensors provide measurements up to 24 GHz.
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.
Make accurate true average power measurements without bringing along a power meter
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
Front-panel keys are grouped to easily and naturally perform
standard field measurements.
Speaker and
headphone jack
Used for future demodulated audio signal capability.
Provides task-driven user interface to simplify the measurements.
Rugged design
Transflective display makes it easy to read
measurements in direct sunlight
Water-resistant chas- The case is made from polycarbonates that withstand wide
sis, keypad and case temperature ranges and salty, humid environments.
RF connector
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.
Modern connectivity
Water resistant chassis withstands wide
temperature ranges and humid environments
USB 2.0 ports
Two USB 2.0 ports can be used to transfer files.
LAN port
Used to transfer data in and out of the instrument.
SD flash card slot
Use as a data storage device.
FieldFox Data Link
Transfer data remotely from the instrument to a PC for backoffice applications such as baseline analysis and report
A condensed version of the specifications is provided here. See the User’s Guide for the complete version;
Specification (spec.):
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:
Typical (typ.):
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.
• FieldFox has been turned on at least 90 minutes
Nominal (nom.):
A general, descriptive term or design parameter. It is not tested,
and not covered by the product warranty.
• FieldFox is within its calibration cycle
• Storage or operation at 25 °C ±5 °C range (unless otherwise stated)
Cable and antenna analyzer (Option 104 or 106)
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
> 1.6 GHz to 3.2 GHz
> 3.2 GHz to 6 GHz
2.5 kHz
5 kHz
10 kHz
Measurement speed
Return loss
1.5 ms/point (nominal)
1.75 GHz to 3.85 GHz, 1001 points, Cal ON
Distance to fault 2.4 ms/point (nominal)
0 to 500 ft, 601 points, Cal ON
Data points
101, 201, 401, 601, 801, 1001
Corrected > 42 dB
QuickCal (Option 111) > 42 dB (typical)
Source match
Corrected > 36 dB
QuickCal (Option 111) ≥ 35 dB (typical)
Reflection tracking
Corrected ± 0.06 dB
QuickCal (Option 111) ± 0.15 dB (typical)
1. Spectrum analyzer (Option 230) start frequency is 100 kHz, usable to 5 kHz.
2. Spectrum analyzer (Option 231) start frequency is 100 kHz, usable to 5 kHz.
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, -25 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
Cable and antenna measurements
Return loss
Display range
0 to 100 dB
0.01 dB
Display range
0 to 100
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, 1001
• Distance to fault display: Return loss, VSWR
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)
Network analysis (Option 303)
Vector measurement, S11 magnitude and S11 phase. Specification is listed under Cable and antenna analyzer section (S11/Return loss).
Scalar measurement, S21 magnitude. Specification is listed under transmission measurement.
S21 requires Option 110 transmission measurement.
Reflected power
Source power
Calibration types
Log, linear, phase, VSWR, Smith chart
Mechanical cal
Automatic cal update with frequency change or number of points change
IF bandwidth selections
300 Hz, 1 kHz, 3 kHz, 10 kHz and 30 kHz
Spectrum analyzer (Option 230 or 231)
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
Frequency reference
temperature stability ± 1 ppm over -10 to 55 °C
Frequency readout accuracy
± (readout frequency x frequency reference accuracy + RBW centering + 0.5 x horizontal
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
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)
4:1 (nominal)
Selectivity (-60 dB/ -3 dB)
Video bandwidth (VBW)
1 Hz to 2 MHz in 1/1.5/2/3/5/7.5/10 sequence
Noise sidebands, CF = 1 GHz
10 kHz offset: -88 dBc/Hz ( typical)
30 kHz offset: -89 dBc/Hz, (typical)
100 kHz offset:-95 dBc/Hz, (typical)
1 MHz offset: -115 dBc/Hz, (typical)
Sweep acquisition, span > 0 Hz
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 Readout Measured value representing time required to tune receiver, acquire data, and process trace
Trace updates
Span = 20 MHz, RBW = 3 kHz: 1.5 updates/second
Span = 100 MHz, RBW auto coupled: 7 updates/second
Span = 6 GHz, RBW auto coupled: 1 update/second
Trace points
101, 201, 401, 601, 801, 1001 points, default is 401
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 on input, 0 dB attenuation, average detector
Preamplifier OFF
20 to 30 °C
10 MHz to 2.4 GHz
-130 dBm (typical)
> 2.4 GHz to 5.0 GHz
-125 dBm (typical)
> 5.0 GHz to 6.0 GHz
-119 dBm (typical)
Preamplifier ON (Option 235)
20 to 30 °C
10 MHz to 2.4 GHz
-148 dBm (typical)
> 2.4 GHz to 5.0 GHz -145 dBm (typical)
> 5.0 GHz to 6.0 GHz -138 dBm (typical)
-10 to 55 °C
10 MHz to 2.4 GHz
< -141 dBm
> 2.4 GHz to 5 GHz
< -138 dBm
> 5 GHz to 6 GHz
< -130 dBm
Total absolute amplitude accuracy
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
±1.8 dB
±0.60 dB (typical)
> 10 MHz to 3.0 GHz
±1.5 dB
±0.50 dB (typical)
> 3.0 GHz to 5.0 GHz
±1.9 dB
±0.60 dB (typical)
> 5.0 GHz to 6.0 GHz
±2.1 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 GHz to 3.0 GHz < -80 dBc, +50 dBm SHI (nominal)
Third order intermodulation distortion (TOI)
Two -30 dBm tones at input mixer
< -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 GHz 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)
-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
22 dB (nominal)
Reference level
-170 dBm to +30 dBm
0.1 dB
0 dB (no error)
4 traces, data/max/average/min
Normal, positive peak, negative peak, sample, average
Marker types Normal, noise marker
Number of markers or
delta markers 6
Marker functions Peak, next peak, peak left, peak right, marker to center, minimum search
1.5:1 (50 ohm)
Power meter measurement (Option 302)
Frequency range
9 kHz to 24 GHz (sensor dependent)
USB power sensor
9 kHz to 24 GHz, see Agilent U2000 Series USB power sensor specifications for details
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
6.5” transflective, color VGA LED backlit 640 x 480 with anti-glare coating
Built-in speaker
Headphone jack
Built-in headphone jack
2 x USB 2.0; 1 x mini USB; 1 x LAN
Internal storage
Minimum 16 MB, up to 1000 traces
External storage
1 x mini SD slot and 2 x USB 2.0
Complies with European EMC Directive 2004/108/EC
▪ IEC/EN 61326-2-1)
▪ CISPR Pub 11 Group 1, Class A
▪ ICES/NMB-001
▪ IEC/EN 61000-4-2, functional up to 20 kV test
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
Meets MIL-PRF-28800F Class 2 specification
95% at 40 °C
Operating -10 ºC to +55 ºC
Non-operating -51 ºC to 71ºC
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 supply
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
External DC input: 15 to 19 VDC
Battery 6 cell Lithium Ion, 10.8 V, 4.6 A-h
Battery operating time 4 hours
English, Chinese, French, Spanish, Japanese, Russian, German, and Italian
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; CD ROM with FieldFox Data Link software and full manual
N9912A FieldFox options
Option 104
Option 106
Qption 110
Option 111
Option 230
Option 231
Option 235
Option 302
Option 303 Option 308
4 GHz cable and antenna analyzer
6 GHz cable and antenna analyzer
Transmission measurement
4 GHz spectrum analyzer (requires Option 104)
6 GHz spectrum analyzer (requires Option 106)
Preamplifier for spectrum analyzer (requires Option 230 or 231)
External USB power sensor support
Network analysis capability
Vector voltmeter
N9910X RF/MW handheld analyzer accessories
N9910X-800T-Calibration Kit, DC-6 GHz, Type-N(m)
N9910X-801T-Calibration Kit, DC-6 GHz, Type-N(f)
N9910X-802T-Calibration Kit, DC-6 GHz, 7/16 DIN(m)
N9910X-803T-Calibration Kit, DC-6 GHz, 7/16 DIN(f)
N9910X-810Rugged phase stable cable, Type-N(m) to Type-N(m), 5 ft
N9910X-811Rugged phase stable cable, Type-N(m) to Type-N(f), 5 ft
N9910X-812Rugged phase stable cable, Type-N(m) to Type-N(m), 12 ft
N9910X-813Rugged phase stable cable, Type-N(m) to Type-N(f), 12 ft
N9910X-820Antenna, directional, multiband, 800 to 2500 MHz, 10 dBi
N9910X-821Antenna, telescopic whip, 70 MHz to 1 GHz
N9910X-843Coaxial adapter, Type-N(m) to 7/16 DIN(f)
N9910X-845Adapter 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-860Fixed attenuator, 40 dB, 100 W, DC-3 GHz, Type-N(m) to Type-N(f)
N9910X-861Fixed attenuator, 40 dB, 50 W, DC-8.5 GHz, Type-N(m) to Type-N(f)
N9910X-870Extra battery
N9910X-872External battery charger
N9910X-873AC/DC adapter
N9910X-874External bias-tee, 2.5 MHz to 6 GHz, 1 W, 0.5 A
N9910X-880Extra soft carrying case with backpack and shoulder strap
N9910X-881Hard transit case
N9910X-884Extra N9912A shoulder strap
For more information go to:
FieldFox Accessories
External battery charger,
Bias-tees, N9910X-874
Directional antenna,
Antenna, N9910X-821
Phase stable cable,
100 Watt attenuator,
AC/DC adapter, N9910X-873
Adapter kit, N9910X-845
T-Cal kits
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
FieldFox fits inside hard transit case
Product specifications and descriptions
in this document subject to change
without notice.
© Agilent Technologies, Inc. 2008, 2009
Printed in USA, February 2, 2009
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