MXG X-Series Signal Generators
N5181B Analog & N5182B Vector
9 kHz to 3 or 6 GHz
DATA SHEET
Table of Contents
Definitions and conditions ....................................................................................................... 2
Frequency specifications ......................................................................................................... 3
Amplitude specifications ......................................................................................................... 5
Spectral purity specifications ............................................................................................... 10
Analog modulation specifications ......................................................................................... 13
Vector modulation specifications—N5182B only ................................................................. 18
General specifications ........................................................................................................... 29
Inputs and outputs ................................................................................................................. 30
Related literature ................................................................................................................... 32
Definitions and Conditions
Pure and precise
On the path to better
performance, the Keysight
Technologies, Inc. MXG X-Series
signal generators are fine-tuned
to be your “golden transmitter” in
R&D. Whether you’re pushing for
a linear RF chain or an optimized
link budget, the analog and vector
MXG models deliver what you
need: phase noise, ACPR, channel
coding, and more. Take your
devices and designs to the limit
with the MXG.
Specifications represent warranted performance of a calibrated instrument that has
been stored for a minimum of 2 hours within the operating temperature range of 0 to
55 °C, unless otherwise stated, and after a 45 minute warm-up period. The specifications
include measurement uncertainty. Data represented in this document are specifications
unless otherwise noted.
Typical (typ) describes additional product performance information that is not covered
by the product warranty. It is performance beyond specifications that 80 percent of the
units exhibit with a 90 percent confidence level at room temperature (approximately
25 °C). Typical performance does not include measurement uncertainty.
Nominal (nom) values indicate the expected mean or average performance, or an
attribute whose performance is by design, such as the 50 ohm connector. This data is
not warranted and is measured at room temperature (approximately 25 °C).
Measured (meas) describes an attribute measured during the design phase for purposes
of communicating expected performance, such as amplitude drif t vs. time. This data is
not warranted and is measured at room temperature (approximately 25 °C).
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Frequency Specifications
Frequency range
Frequency range Option 503 9 kHz (5 MHz I/Q mode) to 3 GHz
Option 506 9 kHz (5 MHz I/Q mode) to 6 GHz
Resolution 0.001 Hz
Phase offset Adjustable in nominal 0.1 ° increments
Frequency bands
1. N is a factor used to help define cer tain specifications within the document.
1
Band Frequency range N
1 9 kHz to < 5 MHz 1 (digital synthesis)
1 5 to < 250 MHz 1
2 250 to < 375 MHz 0.25
3 375 to < 750 MHz 0.5
4 750 to < 1500 MHz 1
5 1500 to < 3000.001 MHz 2
6 3000.001 to 6000 MHz 4
Frequency switching speed
1, 2
Standard Option UNZ
3
Option UNZ, typical
CW mode
SCPI mode ≤ 5 ms, typical ≤ 1.15 ms ≤ 950 µs
List/step sweep mode ≤ 5 ms, typical ≤ 900 µs ≤ 800 µs
Digital modulation on (N5182B only)
SCPI mode ≤ 5 ms, typical ≤ 1.15 ms ≤ 1.05 ms
List/step sweep mode ≤ 5 ms, typical ≤ 900 µs ≤ 800 µs
1. Time from receipt of SCPI command or trigger signal to within 0.1 ppm of final frequency or within 100 Hz, whichever is greater.
2. With internal channel corrections on, the frequency switching speed is < 1.3 ms, measured for list mode and SCPI mode cached frequency points. For the
initial frequency point in SCPI mode the time is < 3.3 ms, measured. The instrument will automatically cache the most recently used 1024 frequencies. There
is no speed degradation for amplitude-only changes.
3. Specifications apply when status register updates are off. For export control purposes CW switching speed to within 0.05% of final frequency is
190 μs (measured).
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Frequency reference
Accuracy ± (time since last adjustment x aging rate)
± temperature effects
± line voltage effects
± calibration accuracy
Internal time base reference oscillator aging rate
1
< ± 1 x 10-7/year
< ± 5 x 10
-10
/day after 30 days
Initial achievable calibration accuracy ± 4 x 10-8 or ± 40 ppb
Adjustment resolution < 1 x 10
Temperature effects < ± 2 x 10
-10
-10
, nominal
Line voltage effects < ± 1 x 10-9 for ± 10% change, nominal
Reference output
Frequency 10 MHz
Amplitude ≥ +4 dBm, nominal into 50 Ω load
External reference input
Input frequency, standard 10 MHz
Input frequency, Option 1ER 1 to 50 MHz (in multiples of 0.1 Hz)
2
Stability Follows the stability of external reference input signal
Lock range ± 1 ppm
Amplitude –3 dBm to +20 dBm, nominal
Impedance 50 Ω, nominal
Waveform Sine or square
Sweep modes (frequency and amplitude)
Operating modes Step sweep (equally spaced frequency and amplitude or logarithmically spaced
frequency steps)
List sweep (arbitrary list of frequency and amplitude steps)
Simultaneously sweep waveforms with N5182B; see Baseband Generator
section for more detail
Sweep range Within instrument frequency range
Dwell time 100 µs to 100 s
Number of points 2 to 65535 (step sweep)
1 to 3201 (list sweep)
Step change Linear or logarithmic
Triggering Free run, trigger key, external, timer, bus (GPIB, LAN, USB)
1. Not verified by Keysight N7800A TME Calibration and Adjustments Software. Daily aging rate may be verified as a supplementary chargeable service, on
request.
2. Close-in phase noise will degrade when reference input is tuned away from 10 MHz.
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Amplitude Specifications
0
5
10
15
20
25
30
0123456
Output power (dBm)
Frequency (GHz)
Measured max leveled CW and I/Q rms power
Maximum power with Option 1EA
Standard
Output parameters
Settable range +30 to –144 dBm
Resolution 0.01 dB
Step attenuator 0 to 130 dB in 5 dB steps electronic type
Connector Type N 50 Ω, nominal
Max output power 1 () = typical
Frequency Standard Option 1E A
9 kHz to 10 MHz +13 dBm +17 dBm (+18 dBm)
> 10 MHz to 3 GHz +18 dBm +24 dBm (+26 dBm)
> 3 to 5 GHz +16 dBm +19 dBm (+20 dBm)
> 5 to 6.0 GHz +16 dBm +18 dBm (+19 dBm)
1. Quoted specif ications bet ween 20 °C and 30 °C. Maximum output power t ypically decreases by 0.01 dB/°C for temperatures outside this range.
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Absolute level accuracy in CW mode 1 (ALC on) ()= typical
Standard Op tion 1EQ
Range Max power to –60 dBm < –60 to –110 dBm < –110 to –127 dBm
9 to 100 kHz (± 0.6 dB) (± 0.9 dB)
100 kHz to 5 MHz ± 0.8 dB (± 0.3) ± 0.9 dB (± 0.3)
> 5 MHz to 3 GHz ± 0.6 dB (± 0.3) ± 0.8 dB (± 0.3) ± 1.5 dB (± 0.5)
> 3 to 6 GHz ± 0.6 dB (± 0.3) ± 1.1 dB (± 0.3) ± 1.6 dB (± 0.6)
Absolute level accuracy in CW mode (ALC off, power search run, relative to ALC on)
9 kHz to 6 GHz ± 0.15 dB, typical
Absolute level accuracy in digital I/Q mode (N5182B only)
(ALC on, relative to CW, W-CDMA 1 DPCH configuration < +10 dBm)
5 MHz to 6 GHz ± 0.25 dB, (0.05 dB)
1. Quoted specifications between 20 °C and 30 °C. For temperatures outside this range, absolute level accuracy degrades by 0.01 dB/°C. Output power may
drif t up to 0.10 dB < 3 GHz and 0.15 dB > 3 GHz per g/kg change in absolute humidity (nom).
Measured level accuracy at –110 dBm
1
0.8
0.6
0.4
0.2
0
–0.2
Power error (dB)
–0.4
–0.6
–0.8
–1
0 1000 2000 3000 4000 5000 6000
Upper std dev (1 σ)
Mean
Lower std dev (1 σ)
Frequency (MHz)
Measured level accuracy at –130 dBm
1
0.8
0.6
0.4
0.2
0
–0.2
Power error (dB)
–0.4
–0.6
–0.8
–1
0 1000 2000 3000 4000 5000 6000
Upper std dev (1 σ)
Mean
Lower std dev (1 σ)
Frequency (MHz)
Measured level accuracy at –140 dBm
1
0.8
0.6
0.4
0.2
0
–0.2
Power error (dB)
–0.4
–0.6
–0.8
–1
0 1000 2000 3000 4000 5000 6000
Upper std dev (1 σ)
Mean
Lower std dev (1 σ)
Frequency (MHz)
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Measured amplitude repeatablity +5 dBm ALC on
0.5
0.4
0.3
0.2
0.1
0
–0.1
–0.2
Delta from initial (dB)
–0.3
–0.4
–0.5
0 20 40 60 80 100 120
Elapsed time (minutes)
850 MHz
1900 MHz
2200 MHz
3500 MHz
5800 MHz
Measured relative level accuracy
at 850 MHz initial power +10 dBm
0.5
0.4
0.3
0.2
0.1
0
–0.1
–0.2
Power error (dB)
–0.3
–0.4
–0.5
0 –20 –40 -60 –80 –100 –120 –140
Upper std dev (1 σ)
Mean
Lower std dev (1 σ)
Final power (dBm)
Repeatability measures the abilit y of the instrument to return to a given
power setting after a random excursion to any other frequency and power
setting. It should not be confused with absolute level accuracy.
Measured ALC linearity
850 MHz, CW, relative to 0 dBm
0.3
0.2
0.1
0
Error (dB)
–0.1
–0.2
–0.3
–20 –15 –10 –5 0 5 10
Amplitude (dB)
Upper std dev (1 σ)
Mean
Lower std dev
(1 σ)
Relative level accuracy measures the accuracy of a step change
from any power level to any other power level. This is useful for large
changes (such as 5 dB s teps).
Measured ALC linearity
1900 MHz, CW, relative to 0 dBm
0.3
0.2
0.1
0
Error (dB)
–0.1
–0.2
–0.3
–20 –15 –10 –5 0 5 10
Upper std dev
Mean
Lower std dev
(1 σ)
(1 σ )
Amplitude (dB)
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SWR (measured CW mode)
1
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
1.9
2
0123456
SWR
Frequency (GHz)
Measured SWR
0 dB
15 dB
-35.00
-30.00
-25.00
-20.00
-15.00
-10.00
-5.00
0.00
0123456
Output power (dBm)
Frequency (GHz)
Measured attenuator threshold level
Threshold for bypass attenuator
Threshold for 10 dB attenuator
1
Frequency Attenuator state
Bypass 0 to 10 dB 15 dB or more
≤ 1.0 GHz < 1.3:1 < 1.35:1 < 1.2:1
> 1.0 to 2 GHz < 1.55:1 < 1:5:1 < 1.3:1
> 2 to 3 GHz < 1.8:1 < 1.5:1 < 1.45:1
> 3 to 4 GHz < 1.5:1 < 1.6:1 < 1.7:1
> 4 to 6 GHz < 1.9:1 < 1.6:1 < 1.6:1
1. SWR < 1.60:1 below 30 kHz.
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Maximum reverse power, nominal
< 1 GHz 50 W
> 1 to 2 GHz 25 W
> 2 to 6 GHz 20 W
Max DC voltage 50 VDC
Trip level 2 W
Amplitude switching speed
1
Standard Option UNZ Option UNZ, typical
CW mode
SCPI mode ≤ 5 ms, typical ≤ 750 µs ≤ 650 µs
Power search SCPI mode < 12 ms, measured
List/step sweep mode ≤ 5 ms, typical ≤ 500 µs ≤ 300 µs
Digital modulation on (N5182B only)
SCPI mode ≤ 5 ms, typical ≤ 1.15 ms ≤ 950 µs
Power search SCPI mode < 12 ms, measured
List/step sweep mode ≤ 5 ms, typical ≤ 900 µs ≤ 400 µs
Alternate power level control (N5182B only)
Switching time
20 µs within ± 1 dB, measured
(via waveform markers)
Functional power range –15 dBm to –144 dBm, measured
User flatness correction
Number of points 3201
Number of tables Dependent on available free memory in instrument; 10,000 maximum
Entry modes USB/L AN direct power meter control, LAN to GPIB and USB to GPIB, remote bus and manual USB/GPIB power
meter control
Sweep modes
See Frequency Specifications section for more detail
1. Time from receipt of SCPI command or trigger signal to amplitude settled within 0.2 dB. Switching speed specifications apply when status register updates
are off.
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Spectral Purity Specifications
-170
-160
-150
-140
-130
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
Measured standard phase noise CW mode
1 Hz 10 Hz 100 Hz 1 kHz 10 kHz 100 kHz 1 MHz, 10 MHz 100 MHz
L(f) [dBc/Hz] vs. frequency
6 GHz
3 GHz
2 GHz
1 GHz
250 MHz
100 MHz
- 170
- 160
- 150
- 140
- 130
- 120
-110
- 100
-90
-80
-70
-60
-50
-40
-30
-20
Measured Option UNX phase noise CW mode
1 Hz 10 Hz 100 Hz 1 kHz 10 kHz100 kHz1 MHz, 10 MHz 100 MHz
L(f) [dBc/Hz] vs. frequency
6 GHz
3 GHz
2 GHz
1 GHz
250 MHz
100 MHz
Standard absolute SSB phase noise (dBc/Hz, CW, at 20 kHz offset) () = typical
1
5 MHz to < 250 MHz –129 (–13 3)
250 MHz –14 0 (–143)
500 MHz –135 (–139)
1 GHz –131 (–13 4)
2 GHz –124 (–127)
3 GHz –123 (–127)
4 GHz –118 (–122 )
6 GHz –116 (–121)
Option UNX absolute SSB phase noise (dBc/Hz, CW, at 20 kHz offset) () = typical
1
5 MHz to < 250 MHz –14 0 (–143)
250 MHz –14 4 (–150 )
500 MHz –143 (–150)
1 GHz –141 (–146)
2 GHz –135 (–141)
3 GHz –131 (–137)
4 GHz –118 (–122 )
6 GHz –117 (–12 1)
Option UNY absolute SSB phase noise (CW) () = measured
1
Frequency 1 Hz 10 Hz 100 Hz 1 kHz 10 kHz 100 kHz
100 MHz (–91) (–113) (–124) (–13 7) (–142) (–142)
249 MHz (–85) –93 (–110) –103 (–118) –130 (–137) –139 (–142) –138 (–142)
250 MHz (–85) –96 (–110) –104 (–118) –127 (–139) –144 (–15 0) –147 (–152)
500 MHz (–74) –89 (–100) –98 (–10 9) –125 (–13 9) –139 (–149 ) –14 5 (–149)
1 GHz (–70) –87 (–97) –93 (–10 6) –123 (–13 6) –141 (–146) –140 (–14 3)
2 GHz (–65) –79 (–90) –85 (–101) –114 (–131) –135 (–140) –134 (–137)
3 GHz (–61) –74 (–88) –81 (–98) –112 (–128) –132 (–13 8) –131 (–13 5)
4 GHz (–61) –73 (–84) –79 (–95) –110 (–124) –130 (–13 4) –127 (–131)
6 GHz (–57) –69 (–81) –76 (–91) –107 (–121) –12 6 (-13 2) –12 5 (–129 )
1. From 20 to 30 °C, excludes mechanic vibration, measured @ +10 dBm or maximum specified power, whichever is less.
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