Anritsu MS2850A Signal Analyzer/Spectrum Analyzer with 1 GHz Analysis Bandwidth

Benchtop signal/spectrum analyzer covering 9 kHz to 32 GHz or 44.5 GHz with up to 1 GHz analysis bandwidth for 5G and satellite signals.

Frequency range: 9 kHz to 32 GHz
Frequency range: 9 kHz to 44.5 GHz
Frequency range, Signal Analyzer mode (Bandwidth >31.25 MHz): 800 MHz to 32 GHz
Frequency range, Signal Analyzer mode (Bandwidth >31.25 MHz): 800 MHz to 44.5 GHz

Datasheet

Overview

The Anritsu MS2850A is a benchtop spectrum analyzer/signal analyzer with a maximum analysis bandwidth of 1 GHz and a frequency range of 9 kHz to either 32 GHz (MS2850A-047) or 44.5 GHz (MS2850A-046). It is intended for wideband communications measurements such as 5G mobile and broadcast satellite equipment, covering sub-6 GHz through the millimeter-wave 28 GHz and 39 GHz bands.

The standard analysis bandwidth is 255 MHz, with 510 MHz and 1 GHz available as options. The FFT-based signal analyzer function provides spectrum, spectrogram, power vs. time, frequency vs. time, phase vs. time and CCDF/APD displays. Using the 32 GB internal memory, signals can be captured for up to 24 seconds at a 100 MHz span and replayed later for analysis in different display modes.

Dynamic range and flatness

A high ADC clipping level over the 1 GHz analysis bandwidth gives a wide difference from the displayed average noise level, which supports accurate EVM measurement of 5G signals. In the 28 GHz band the measured dynamic range between ADC clipping level and DANL is 142 dB (ref.). In-band amplitude and phase flatness are specified for wideband per-carrier amplitude and phase measurements.

5G measurement and data transfer

Optional MX285051A 5G measurement software covers V5G pre-standard and 5G NR (sub-6 GHz and mmWave) uplink and downlink, including batch analysis of up to eight 100 MHz carriers with the 1 GHz bandwidth option. Optional PCIe and USB 3.0 interfaces transfer captured IQ data to an external PC faster than 1000BASE-T for analysis with general EDA tools.

Key Features

Built-in 5G measurement software support for V5G and 5G NR (sub-6 GHz/mmWave)
Residual EVM better than 1% in combination with the 5G measurement software
One-button Auto Range dynamic-range optimization for EVM measurement
Multicarrier batch (all-at-once) analysis of up to 8 carriers × 100 MHz
Amplitude, phase and timing difference measurement for each carrier
Maximum analysis bandwidth of 1 GHz (255 MHz standard, 510 MHz and 1 GHz options)
Amplitude and phase flatness specified over 1 GHz analysis bandwidth
Wide measurement dynamic range of more than 140 dB
Long-term capture using 32 GB memory, up to 24 s at 100 MHz span
Capture & Replay with switchable display modes
Optional PCIe/USB3.0 interface for high-speed transfer of captured data
Microwave preselector bypass as standard function
USB power sensor connection as standard function
2 dB step input attenuator

Specifications

Frequency

Frequency range MS2850A-047	9 kHz to 32 GHz Spectrum Analyzer mode, Signal Analyzer mode (Bandwidth ≤31.25 MHz)
Frequency range MS2850A-046	9 kHz to 44.5 GHz Spectrum Analyzer mode, Signal Analyzer mode (Bandwidth ≤31.25 MHz)
Frequency range, Signal Analyzer mode (Bandwidth >31.25 MHz) MS2850A-047	800 MHz to 32 GHz
Frequency range, Signal Analyzer mode (Bandwidth >31.25 MHz) MS2850A-046	800 MHz to 44.5 GHz
Frequency setting range MS2850A-047	−100 MHz to 32.5 GHz Setting resolution 1 Hz
Frequency setting range MS2850A-046	−100 MHz to 45 GHz Setting resolution 1 Hz
Span setting range MS2850A-047	0 Hz, 300 Hz to 32 GHz Setting resolution 2 Hz
Span setting range MS2850A-046	0 Hz, 300 Hz to 44.5 GHz Setting resolution 2 Hz
Span accuracy	±0.2% Trace Point 10,001
Resolution bandwidth (RBW)	1 Hz to 3 MHz (1-3 sequence), 500 Hz, 50 kHz, 2 MHz, 5 MHz, 10 MHz 1 Hz to 10 Hz: Can not be set when SPAN 0 Hz
RBW selectivity (−60 dB/−3 dB)	4.5: 1 1 Hz to 10 MHz, nom.
Video bandwidth (VBW)	1 Hz to 3 kHz (1-3 sequence), 5 kHz, 10 kHz to 10 MHz (1-3 sequence), Off

Internal Reference Oscillator

Start-up characteristics	±5 × 10–7 (2 minutes after power-on), ±5 × 10–8 (5 minutes after power-on) Based on frequency 24 hours after power-on, at 23°C
Aging rate	±1 × 10–7 /year
Temperature characteristics	±2 × 10–8 (0°C to +45°C)
Frequency accuracy at the initial calibration	±2.2 × 10–8 18°C to 28°C, 1 hour after power-on

SSB Phase Noise

10 kHz offset	−123 dBc/Hz 18º to 28°C, Center frequency 1 GHz, Spectrum Analyzer mode; 95th percentile −127 dBc/Hz
100 kHz offset	−123 dBc/Hz Center frequency 1 GHz; 95th percentile −126 dBc/Hz
1 MHz offset	−135 dBc/Hz Center frequency 1 GHz; 95th percentile −136 dBc/Hz
10 MHz offset	−148 dBc/Hz Center frequency 1 GHz, nom.

Amplitude

Level measurement range	DANL to +30 dBm Without MS2850A-068 or Preamp Off
Level measurement range MS2850A-068	DANL to +10 dBm With MS2850A-068 and Preamp On
Maximum input level (average total power)	+30 dBm Input attenuator ≥10 dB; +20 dBm at 0 dB; without MS2850A-068 or Preamp Off; DC voltage ±0 Vdc
Input attenuator range	0 to 60 dB, 2 dB Steps
Reference level setting range	Log scale: –120 to +50 dBm; Linear scale: 22.4 μV to 70.7 V Or equivalent level; setting resolution 0.01 dB
Linearity error	±0.07 dB Mixer input level ≤−20 dBm, without MS2850A-068 or Preamp Off, Bandwidth ≤31.25 MHz
RF frequency characteristics, 50 MHz ≤ frequency < 4 GHz	±0.35 dB Spectrum Analyzer mode, Preselector Bypass Off, Preamp Off, 18°C to 28°C, Input attenuator 10 dB

Displayed Average Noise Level (DANL)

30 MHz ≤ frequency < 1 GHz	−153 dBm/Hz Without MS2850A-068, Detector Sample, VBW 1 Hz, Input attenuator 0 dB
26.5 GHz < frequency ≤ 34 GHz	−140 dBm/Hz Without MS2850A-068
40 GHz < frequency ≤ 44.5 GHz	−130 dBm/Hz (nom.) Without MS2850A-068
30 MHz ≤ frequency < 1 GHz, Preamp On MS2850A-068	−166 dBm/Hz With MS2850A-068 and Preamp On; 95th percentile −168 dBm/Hz

Residual Responses

1 MHz ≤ frequency ≤ 1 GHz	≤−100 dBm Input attenuator 0 dB, 50Ω terminated
1 GHz < frequency ≤ 6 GHz	≤−90 dBm (typ.)
26.5 GHz < frequency ≤ 44.5 GHz	≤−80 dBm (nom.)

Signal Analyzer

Analysis bandwidth MS2850A-032	255 MHz (Standard) Frequency measurement range 100 MHz to 32 GHz/44.5 GHz
Analysis bandwidth MS2850A-033	510 MHz (option) Frequency measurement range 100 MHz to 32 GHz/44.5 GHz
Analysis bandwidth MS2850A-034	1 GHz (option) Frequency measurement range 4.2 GHz to 32 GHz/44.5 GHz
In-band frequency characteristics	±1.2 dB (nom.) Center Frequency 28 GHz, at Center Frequency ±500 MHz
In-band phase linearity	5 deg. p-p (nom.) Center Frequency 28 GHz, at Center Frequency ±500 MHz
SFDR, 800 MHz ≤ Frequency < 4.2 GHz	-60 dBc (nom.)
SFDR, 4.2 GHz ≤ Frequency ≤ 44.5 GHz	-70 dBc (nom.)
ADC clipping level	0 dBm (CW) Center Frequency 28 GHz; meas., not guaranteed
Dynamic range	142 dB (ref.) Center Frequency 28 GHz, difference between ADC clipping level and DANL (−142 dBm/Hz, meas.)
Max. capture time, 100 MHz span	24 s Sampling rate 162.5 MHz
Max. capture time, 1000 MHz span	3 s Sampling rate 1300 MHz

Specifications are taken from the manufacturer's documentation. See the datasheet for complete and current values.

Applications

5G NR base station and terminal transmitter testing
Broadcast satellite equipment evaluation
Microwave and millimeter-wave wideband communications R&D
Production testing of communications equipment
O-RAN O-RU RF transmitter testing
Phased-array antenna phase measurement
Millimeter-wave and automotive radar measurement with external mixers
LTE/LTE-Advanced, W-CDMA and GSM transmitter measurement

Options & Accessories

Option	Description
MS2850A-047	9 kHz to 32 GHz
MS2850A-046	9 kHz to 44.5 GHz
MS2850A-010	Phase Noise Measurement Function — Measures phase noise over a frequency offset of 10 Hz to 10 MHz
MS2850A-011	Secondary Storage Device — Removable SSD extending internal storage for large digitized data files
MS2850A-014	Removable SSD, Win10 — User-changeable SSD with the same Windows OS and programs as the factory system SSD, for service repair and calibration
MS2850A-017	Noise Figure Measurement Function — Y-Factor noise figure measurement using Noisecom NC346 series noise sources
MS2850A-032	Analysis Bandwidth 255 MHz (Standard)
MS2850A-033	Analysis Bandwidth Extension 510 MHz
MS2850A-034	Analysis Bandwidth Extension 1 GHz
MS2850A-051	Noise Floor Reduction — Subtracts internal noise components (11 dB max. nominal) from the displayed result
MS2850A-053	External Interface for High Speed Data Transfer PCIe
MS2850A-054	External Interface for High Speed Data Transfer USB3.0
MS2850A-067	Microwave Preselector Bypass (Standard)
MS2850A-068	Microwave Preamplifier — 20 dB gain preamplifier improving DANL
MS2850A-072	Extended Specifications
MS2850A-076	Low Second Harmonic Distortion — Upgrades second harmonic distortion performance for input frequencies of 2 GHz to 22.25 GHz
MX285051A	5G Standard Measurement Software (Base License)
MX285051A-001	Pre-Standard CP-OFDM Downlink
MX285051A-051	Pre-Standard CP-OFDM Uplink
MX285051A-011	NR TDD sub-6 GHz Downlink
MX285051A-061	NR TDD sub-6 GHz Uplink
MX285051A-031	NR FDD sub-6 GHz Downlink
MX285051A-081	NR FDD sub-6 GHz Uplink
MX285051A-021	NR TDD mmWave Downlink
MX285051A-071	NR TDD mmWave Uplink
MX269011A	W-CDMA/HSPA Downlink Measurement Software
MX269012A	W-CDMA/HSPA Uplink Measurement Software
MX269013A	GSM/EDGE Measurement Software
MX269013A-001	EDGE Evolution Measurement Software
MX269020A	LTE Downlink Measurement Software
MX269020A-001	LTE-Advanced FDD Downlink Measurement Software
MX269022A	LTE TDD Downlink Measurement Software
MX269022A-001	LTE-Advanced TDD Downlink Measurement Software
MX269021A	LTE Uplink Measurement Software
MX269021A-001	LTE-Advanced FDD Uplink Measurement Software
MX269023A	LTE TDD Uplink Measurement Software
MX269023A-001	LTE-Advanced TDD Uplink Measurement Software
MX269017A	Vector Signal Analysis Software
MX269017A-001	APSK Analysis — 16APSK, 32APSK
MX269017A-011	Higher-Order QAM Analysis — 512QAM, 1024QAM, 2048QAM
MX284090A	External Mixer Connection Function — Wideband millimeter-wave measurement using Eravant and VDI external mixers

Documents & Resources

Measurement Software MX2690xxA / MX2830xxA / MX2840xxA / MX2850xxA series

brochure

5G Solutions Catalog

brochure

Signal Analyzer MS2850A Product Brochure