Keysight (Agilent) N9918A Data Sheet

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Agilent FieldFox Handheld Analyzers

N9914

N9917

992

N9936

4/6.5/9/14/18/26.5 GHz

Data Sheet

N9913A

N9915A

N9916A

N9918A

N9925A

N9927A

N9928A

N9935A

N9937A

N9938A

This data sheet provides the specified and typical performance of the FieldFox family of portable analyzers. This data sheet should be used in conjunction with the technical overviews and configuration guide, for a complete description of the analyzers.

Carry precision with you.

Table of contents

Cable and antenna analyzer and vector network analyzer ............................................................3

Time domain, Option 010 .................................................................................................................. 15

Vector voltmeter (VVM), Option 308 .............................................................................................. 16

Spectrum analyzer ............................................................................................................................. 17

Tracking generator or independent source ................................................................................... 23

Spectrum analyzer IF output ............................................................................................................ 24

AM/FM tune and listen .................................................................................................................... 24

Preamplifier, Option 235 ................................................................................................................... 24

Interference analyzer and spectrogram, Option 236 ................................................................... 24

Spectrum analyzer time gating, Option 238 .................................................................................. 25

Reflection measurements (RL, VSWR), Option 320 ..................................................................... 25

Built-in power meter, Option 310 .................................................................................................... 26

External USB power sensor support, Option 302 ......................................................................... 26

Built-in GPS receiver, Option 307 .................................................................................................... 26

DC bias variable-voltage source, Option 309 ................................................................................ 27

Remote control capability, Option 030 ........................................................................................... 27

General information ........................................................................................................................... 28

Cable and antenna analyzer and vector network analyzer

The performance listed in this section applies to the cable and antenna analyzer (referred to as CAT) and vector network analyzer (VNA) capabilities available in the following models (may require options – see configuration guide):

FieldFox microwave combination analyzers: N9913A, N9914A, N9915A, N9916A, N9917A, N9918A FieldFox microwave vector network analyzers: N9925A, N9926A, N9927A, N9928A

Specification (spec)

Specifications include guardbands to account for the expected statistical performance distribution, measurement uncertainties, and changes in performance due to environmental conditions. Warranted performance. FieldFox must be within its calibration cycle. No warm-up required for the specifications listed on pages 3 through 7.

Typical

Expected performance of an average unit; does not include guardbands. It is not covered by the product warranty. FieldFox must be within its calibration cycle.

Nominal

A general, descriptive term or design parameter. It is not tested, and not covered by the product warranty. FieldFox must be within its calibration cycle.

Models Frequency range

N9913A 30 kHz to 4 GHz

N9914A 30 kHz to 6.5 GHz

N9915A, N9925A 30 kHz to 9 GHz

N9916A, N9926A 30 kHz to 14 GHz

N9917A, N9927A 30 kHz to 18 GHz

N9918A, N9928A 30 kHz to 26.5 GHz

CAT and VNA

Frequency reference -10 to 55 ºC

Accuracy ± 0.7 ppm (spec) + aging

± 0.4 ppm (typical) + aging

Accuracy, when locked to GPS ± 0.010 ppm (spec)

Accuracy, when GPS antenna is disconnected ± 0.2 ppm (nominal)

Aging rate ± 1 ppm/yr for 20 years (spec), will not exceed ± 3.5 ppm

Frequency resolution Spec

Frequency ≤ 5 GHz 1 Hz

Frequency ≤ 10 GHz 1.34 Hz

Frequency ≤ 20 GHz 2.68 Hz

Frequency ≤ 26.5 GHz 5.36 Hz

Data points or resolution

IF bandwidth2

System impedance

The maximum drift expected in the frequency reference applicable when the ambient temperature changes ± 5 ºC from the temperature

when the GPS signal was last connected.

VNA mode only. Recommend using averaging in CAT mode.

101, 201, 401, 601, 801, 1001, 1601, 4001, 10,001 Arbitrary number of points settable through SCPI

10 Hz, 30 Hz, 100 Hz, 300 Hz, 1 kHz, 3 kHz, 10 kHz, 30 kHz, 100 kHz

50 ohm (nominal), 75 ohm with appropriate adapter and calibration kit

CAT and VNA

Test port output power Port 1 or port 2, high power, 23 ± 5 °C

Frequency Typical Nominal

30 kHz to 300 kHz -11 dBm

> 300 kHz to 2 MHz -3 dBm -2 dBm

> 2 MHz to 625 MHz -2 dBm -1 dBm

> 625 MHz to 3 GHz +1 dBm +3 dBm

≥ 3 to 6.5 GHz -1 dBm +1 dBm

≥ 6.5 to 9 GHz -2 dBm 0 dBm

≥ 9 to 14 GHz -4 dBm -2.5 dBm

≥ 14 to 18 GHz -6 dBm -4.5 dBm

≥ 18 to 23 GHz -10 dBm -8.5 dBm

≥ 23 to 26.5 GHz -12 dBm -11 dBm

Power level accuracy ± 1.5 dB at -15 dBm, typical

Power range

Power step size

System dynamic range1 Port 1 or port 2, high power, 100 Hz IF bandwidth, 100 point average, -10 to 55 °C

Frequency Spec Typical

> 300 kHz to 9 GHz

≥ 9 to 14 GHz 91 dB 97 dB

≥ 14 to 18 GHz 90 dB 94 dB

≥ 18 to 20 GHz 87 dB 90 dB

≥ 20 to 25 GHz 74 dB 79 dB

> 25 to 26.5 GHz 65 dB 70 dB

CAT: High, low and manual. Low power is -45 dBm, nominal. Default power is high. VNA: High, low and manual. Low power is -45 dBm, nominal. Default power is manual power of -15 dBm.

Power settable in 1 dB steps across power range. Flat power, in 1 dB steps, is available across the whole frequency span, nominal.

95 dB 100 dB

Trace noise3 Port 1 or port 2, high power, 300 Hz IF bandwidth, spec, -10 to 55 °C

Frequency Magnitude Phase

≤ 300 kHz

> 300 kHz to 10 GHz ± 0.002 dB (rms) ± 0.014 degrees

> 10 to 20 GHz ± 0.004 dB (rms) ± 0.027 degrees

> 20 to 26.5 GHz ± 0.010 dB (rms) ± 0.066 degrees

± 0.003 dB (rms) ± 0.020 degrees

Temperature stability Nominal

Magnitude ± 0.018 dB/°C≤ 15 GHz, ± 0.08 dB/°C> 15 GHz

Receiver compression Port 1 or port 2, typical, 23 ± 5 °C

500 MHz to 1 GHz > 1 GHz to 26.5 GHz

+10 dBm, 0.15 dB compression +10 dBm, 0.10 dB compression

Port 1 or port 2 maximum input level

Average CW power +27 dBm, 0.5 watts

DC ± 50 VDC

Immunity to interfering signals

For CAT mode "Insertion loss (2-port)", decrease listed dynamic range speciﬁ cations by 20 dB, as CAT mode IFBW is ﬁ xed at 10 kHz. Can

obtain full dynamic range by using S21 measurement in VNA mode with 100 Hz IFBW.

<300 kHz: 63 dB nominal; 2 MHz to 9 MHz: 85 dB spec, 90 dB typical

For CAT mode, increase trace noise by a factor of 5.7, as CAT mode IFBW is ﬁ xed at 10 kHz. Can use averaging in CAT mode to reduce

trace noise, or use VNA mode with 300 Hz IFBW.

+16 dBm (nominal)

Measurement speed

Includes hardware sweep time, re-trace and display update.

CAT

Return loss, 30 kHz to 26.5 GHz, 1-port cal, 1001 points 850 μs/pt

Distance-to-fault, 100 meter cable, 1-port cal, 1001 points 850 μs/pt

VNA

S11 and S21, 30 kHz to 26.5 GHz, enhanced response cal, 100 kHz IF bandwidth, 1001 points 850 μs/pt

Measurements

CAT Distance-to-fault (dB), return loss, VSWR, distance-to-fault (VSWR), cable loss (1-port), insertion loss

VNA T/R S11, S21

VNA S-parameters S11, S21, S22, S12

Number of traces

Display formats

Trace formats

Frequency settings

Frequency sweep type

Sweep trigger

Trigger type Internal or external trigger input

Polarity Positive edge, negative edge

CAT mode distance-tofault settings

Sweep time

Averaging

Smoothing

Group delay

Aperture (selectable) Frequency span / (number of points -1)

Maximum aperture 25% of frequency span

Minimum delay Limited to measuring no more than 180 degrees of phase change within the minimum aperture.

(2-port)

, distance-to-fault (linear or Rho)

Four traces available, Tr1, Tr2, Tr3, Tr4

Single-trace Dual-trace overlay (both traces on one graticule) Dual-trace split (each trace on separate graticule) Three-trace overlay (all three traces on one graticule) Three-trace split (each trace on separate graticule) Quad-trace split (each trace on separate graticule)

Log magnitude, linear magnitude, VSWR, phase, Smith chart, polar, group delay, unwrapped phase, real impedance, imaginary impedance

Start, stop, center, span

Linear

Continuous, single

Edge trigger Sweep begins when external TTL signal occurs at the trigger input port

Start distance, stop distance. Units: meters or feet

Set sweep time in seconds

Sweep and point averaging 2 to 1000

0.25 to 25% of trace width Computes the moving average of adjacent data points. Smoothing aperture defines the trace width (number of points) to be averaged.

CAT and VNA

All measurements standard on N991xA analyzers except insertion loss (2-port). Insertion loss (2-port) requires Option 210.

All measurements available on N992xA analyzers with Option 305.

Standard on N992xA VNAs. Option 210 required on N991xA analyzers.

Option 211 required to obtain all four S-parameters.

CAT and VNA

Measurements continued

Port extension

Title

Display data

Trace math

Scale

Display range

Return loss, log magnitude -1000 to 1000 dB

Log magnitude resolution 0.01 dB

Phase -180 to +180 degrees (unwrapped phase can show larger values)

Phase resolution 0.01 degrees

Phase offset -360 to +360 degrees

VSWR 1.01 to 1000

VSWR resolution 0.01

Data markers

Marker formats

Marker functions

Marker table

Marker types

Marker coupling

For both port 1 and port 2, delay settings. Port extensions apply to all measurements.

Add custom titles to the display

Display data, memory, data and memory, or data math One memory trace per data trace. Total of 4 memory traces

Vector division or subtraction of current linear measurement values and memory data

Autoscale, scale, reference level, reference position Autoscale: Automatically selects scale resolution and reference value to center the trace. Autoscale all: Scales all visible traces.

Start, stop, center, span

Each trace has six independent markers that can be displayed simultaneously. Delta markers are available for each marker.

Default marker format is the trace format. In Smith chart or polar format, [Real + Imag] or [Mag and Phase] formats are also available.

Peak, Next Peak, Peak Left, Peak Right, Mkr→ Center, Mkr→Delay, Min Search, Peak Excursion, Peak Threshold, Target, Bandwidth (BW, Q, Loss), Tracking CAT mode only: Tracking 3 peaks (CAT mode), Marker→ Start distance, Marker→ Stop distance

On/Off

Normal, delta, data trace and memory trace markers

On/Off (coupling between traces)

Calibration types

CalReady, 1-port Each FieldFox has a highly accurate calibration at the test port, at room temperature, traceable to

national standards labs.

QuickCal, 1-port Uses internal and a subset of external standards. 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.

SOL, 1-port Traditional short, open and load 1-port calibration for reflection measurements.

Frequency response Simultaneous magnitude and phase correction of frequency response errors for either reflection or

transmission measurements.

Enhanced response (also known as one-path, two-port)

CalReady, 2-port Full 12-term error correction at test port, at room temperature. Highly accurate calibration, traceable

QuickCal, 2-port Full 12-term error correction using internal and a subset of external standards. QuickCal is most

SOLT or offset short, 2-port Traditional short, open, load and thru (or using offset short standards) for calibration. Full 12-term

QSOLT calibration, 2-port Full 12-term error correction. Requires fewer connections, compared to traditional SOLT (4 compared

Unknown thru calibration, 2-port

Guided calibration wizard FieldFox’s calibration wizard recommends a calibration type and calibration kit based on selected

Interpolated error correction With any type of accuracy enhancement applied, interpolated mode recalculates the error coefficients

Connectors Type-N 50 ohm, Type-N 75 ohm, 7/16, TNC, 3.5 mm, 2.4 mm, waveguide bands: X-band WR-90, P-band

Corrects for frequency response and source match for transmission measurements, and reflection frequency response, directivity and source match for reflection measurements. Partial correction for load match for low-loss reciprocal devices.

to national standards labs.

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.

error correction.

to 7). Applicable to insertable devices.

Full 12-term error correction. Applicable to both insertable and non-insertable devices. Easily characterize non-insertable devices such as Type-N to 3.5 mm, or female-female devices with unknown thru calibration.

parameters and connector types. Alternatively, users can select their own calibration type and calibration kit.

when the test frequencies are changed. The number of points can be increased or decreased and the start/stop frequencies can be changed, but the resulting frequency span must be a subset of the original calibration frequency span.

WR-62, K-band WR-42 Custom coaxial or waveguide calibration kits can be added to any FieldFox analyzer.

CAT and VNA

Distance-to-fault Available in CAT mode, standard on N991xA analyzers, Option 305 on N992xA analyzers.

Range Range = velocity factor x speed of light x (number of points -1) / frequency span x 2

Number of points auto coupled according to start and stop distance entered.

Range resolution Resolution = range / (number of points -1)

Number of points settable by user

Transform modes Bandpass, low-pass

Window types Maximum, medium, and minimum

Alias-free range indicator for bandpass mode On/Off

Dispersion compensation Yes

VECTOR NETWORK ANALYZER

Corrected measurement uncertainty

Power level of -15 dBm, 10 Hz IF bandwidth, no averaging, and 30-minute warm-up time. Includes uncertainties due to drift, noise, compression, and dynamic accuracy. Coverage factor of x1 applied to uncertainties, for ease of comparison with other industry handheld analyzers.

CalReady, Type-N test ports; applies to N9913/4/5/6/7A and N9925/6/7A

0.1

Magnitude uncertainty (dB)

S11=S22=0

0.01

-90 -80 -70 -60 -50 -40 -30 -20 -10 0 10 20

Transmission magnitude (dB)

≤ 500 MHz

0.5 to 9 GHz

9 to 14 GHz

14 to 18 GHz

Phase uncertainty (degrees)

S11=S22=0

0.1

-90 -80 -70 -60 -50 -40 -30 -20 -10 0 10 20

Transmission uncertainty (S21, S12)

≤ 500 MHz

0.5 to 9 GHz

9 to 14 GHz

14 to 18 GHz

100

Transmission magnitude (dB)

≤ 500 MHz

0.5 to 9 GHz

9 to 14 GHz

14 to 18 GHz

≤ 500M Hz

≤ 500 MHz

0.5 to 9 GHz

9 to 14 GHz

14 to 18 GHz

0.1

Magnitude uncertainty (dB)

S21 = S12 =

0.01

-50 -45 -40 -35 -30 -25 -20 -15 -10 -5 0 Reﬂection magnitude (dB)

Reflection uncertainty (S11, S22)

Phase uncertainty (degrees)

S21 = S12 =

0.1

-50 -45 -40 -35 -30 -25 -20 -15 -10 -5 0

Reﬂection magnitude (dB)

Uncertainties shown based on a factory calibration using data-based calibration kits.

Corrected measurement uncertainty

Full 2-port calibration, 85518A or 85519A Type-N (m) 4-in-1 calibration kit, spec

Corrected performance ≤ 0.5 GHz 0.5 to 2 GHz 2 to 9 GHz 9 to 18 GHz

Directivity 44 dB 42 dB 35 dB 32 dB

Source match 37 dB 36 dB 33 dB 30 dB

Load match 38 dB 37 dB 31 dB 27 dB

Reflection tracking ± 0.05 dB ± 0.06 dB ± 0.07 dB ± 0.1 dB

Transmission tracking ± 0.07 dB ± 0.1 dB ± 0.18 dB ± 0.5 dB

VECTOR NETWORK ANALYZER

Magnitude Uncertainty (dB)

0.1

S11=S22=0

0.01

-90 -80 -70 -60 -50 -40 -30 -20 -10 0 10 20

Transmission Magnitude (dB)

Transmission uncertainty (S21, S12)

≤ 500 MHz

0.5 to 2 GHz

2 to 9 GH z

9 to 18 G Hz

≤ 500 MHz

0.5 to 2 GHz

2 to 9 GHz

9 to 18 GHz

Phase Uncertainty ( degrees)

S11=S22=0

0.1

-90 -80 -70 -60 -50 -40 -30 -20 -10 0 10 20

100

Transmission Magnitude (dB)

≤ 500 MHz

0.5 t0 2 G Hz

2 to 9 GH z

9 to 18 G Hz

≤ 500 MHz

0.5 to 2 GHz

2 to 9 GHz

9 to 18 GHz

Magnitude Uncertainty (dB)

S21=S12=0

0.1

-40 -35 -30 -25 -20 -15 -10 -5 0

Reﬂection Magnitude (dB)

Reflection uncertainty (S11, S22)

Phase Uncertainty (degrees)

S21=S12=0

0.1

-40 -35 -30 -25 -20 -15 -10 -5 0

Reﬂection Magnitude (dB)

VECTOR NETWORK ANALYZER

Corrected measurement uncertainty

Full 2-port calibration, 85054D Type-N (m) calibration kit, spec

Corrected performance ≤ 0.5 GHz 0.5 to 2 GHz 2 to 8 GHz 8 to 18 GHz

Directivity 40 dB 40 dB 36 dB 34 dB

Source match 38 dB 33 dB 33 dB 27 dB

Load match 37 dB 35 dB 32 dB 27 dB

Reflection tracking ± 0.006 dB ± 0.006 dB ± 0.009 dB ± 0.027 dB

Transmission tracking ± 0.08 dB ± 0.1 dB ± 0.15 dB ± 0.43 dB

Magnitude Uncertainty ( dB)

0.1

S11=S22=0

0.01

-90 -80 -70 -60 -50 -40 -30 -20 -10 0 10 20

Transmission Magnitude (dB)

Transmission uncertainty (S21, S12)

≤ 500 MHz

0.5 to 3 GHz

3 to 8 GH z

8 to 18 G Hz

≤ 500 MHz

0.5 to 2 GHz

2 to 8 GHz

8 to 18 GHz

Phase Uncertainty ( degrees)

S11=S22=0

0.1

-90 -80 -70 -60 -50 -40 -30 -20 -10 0 10 20

100

Transmission Magnitude (dB)

≤ 500 MHz

0.5 to 3 GHz

3 to 8 GH z

8 to 18 G Hz

≤ 500 MHz

0.5 to 2 GHz

2 to 8 GHz

8 to 18 GHz

Magnitude Uncertainty ( dB)

S21=S12=0

0.1

-40 -35 -30 -25 -20 -15 -10 -5 0

Reﬂection Magnitude (dB)

Reflection uncertainty (S11, S22)

Phase Uncertainty ( degrees)

S21=S12=0

0.1

-40 -35 -30 -25 -20 -15 -10 -5 0

Reﬂection Magnitude (dB)

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Keysight (Agilent) N9918A Data Sheet

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Frequently Asked Questions

User Manual