Anritsu MS27101A Remote Spectrum Monitor, 9 kHz to 6 GHz Half-Rack Indoor Spectrum Monitor

Half-rack, 1U indoor remote spectrum monitor covering 9 kHz to 6 GHz with sweep speeds up to 24 GHz/s and an integrated web server.

Frequency Range: 9 kHz to 6 GHz (tunable to 0 Hz)
Tuning Resolution: 1 Hz
Frequency Reference Accuracy: ±1.5 ppm (25 °C ± 25 °C) ±1.0 ppm/year aging
Frequency Reference Accuracy (GPS on): < ±50 ppb

Datasheet

Overview

The Anritsu MS27101A Remote Spectrum Monitor is a small receiver housed in a ½ rack enclosure with 1U height, designed exclusively for indoor applications. It is used to mitigate interference problems and to identify illegal or unlicensed signal activity, and can be deployed hundreds or thousands of kilometers from the control center. An optional bracket kit allows rack mounting, including combining two monitors in a standard rack-mount cage. Anritsu also offers the outdoor IP67-rated MS27102A and the multi-port MS27103A in the same family.

The monitor covers 9 kHz to 6 GHz with sweep rates up to 24 GHz/s and a 20 MHz instantaneous FFT bandwidth, allowing capture of periodic, transient and short bursty signals. A typical use is real-time capture of the entire FM radio band for later playback and analysis. Low spurious levels allow low-level signals to be distinguished from signals generated by the monitor itself.

Remote operation

The MS27101A is designed for unattended field deployment, with remote power cycling, automated system recovery, a hardware watchdog timer and remote firmware updates. A protected "Golden" firmware image is stored on each unit and is used to restore operation if the firmware becomes corrupted or a downloaded update fails validation.

Connectivity and control

Communication is via the Gigabit Ethernet port, using DHCP or a static IP address (shipped default 10.0.0.2); a USB cellular modem can also be used. An integrated web server allows the instrument to be viewed and controlled from any browser, and all commands are available as SCPI. An integrated GPS receiver provides location and time synchronization, and IQ data can be captured in block or streaming mode with time stamps for time difference of arrival (TDOA) applications.

Software

The optional Vision MX280001A software (Windows 7/8/10/11) provides automated monitoring, spectrum history storage, alarms and geo-location of interferers using three or more probes. IQ Signal Master MX280005A Vector Signal Analysis Software, enabled by option 0128, provides post-processing, modulation quality measurements and playback of captured IQ data.

Frequency Range	9 kHz to 6 GHz (tunable to 0 Hz)
Tuning Resolution	1 Hz
Frequency Reference Accuracy	±1.5 ppm (25 °C ± 25 °C) ±1.0 ppm/year aging
Frequency Reference Accuracy (GPS on)	< ±50 ppb With GPS on
Frequency Span	10 Hz to 6 GHz
Sweep Speed, 10 kHz RBW	5 GHz/s Typical (full span FFT mode)
Sweep Speed, 30 kHz RBW	12 GHz/s Typical (full span FFT mode)
Sweep Speed, 3 MHz RBW	24 GHz/s Typical (full span FFT mode)

Resolution Bandwidth (RBW)	10 Hz to 3 MHz in 1–3 sequence –3 dB bandwidth
Video Bandwidth (VBW)	10 Hz to 3 MHz in 1–3 sequence –3 dB bandwidth; auto or manually selectable
IF / FFT Bandwidth	20 MHz Instantaneous FFT bandwidth

SSB Phase Noise @ 1 GHz, 10 kHz offset	(–98 dBc/Hz) Typical. Product brochure states –99 dBc/Hz @ 10 kHz offset at 1 GHz
SSB Phase Noise @ 1 GHz, 100 kHz offset	(–98 dBc/Hz) Typical

Dynamic Range	(> 106 dB at 2.4 GHz), 2/3 (TOI-DANL) in 1 Hz RBW Typical
Measurement Range	DANL to Maximum Continuous Input
Reference Level Range	–150 dBm to +30 dBm
Attenuator Range	0 dB to 50 dB in 5 dB steps
Amplitude Units	Log Scale Modes: dBm, dBµV
Amplitude Accuracy, 9 kHz to 6.0 GHz	± 2.5 dB Attenuation ≤ 40 dB, preamp off for frequencies less than 100 kHz
VSWR	< 2.5:1 typical

DANL, preamp off, 10 MHz to 3.3 GHz	–145 dBm max, –150 dBm typical RBW normalized to 1 Hz, 0 dB attenuation, reference level –20 dBm
DANL, preamp off, > 3.3 GHz to 4.1 GHz	–140 dBm max, –145 dBm typical RBW normalized to 1 Hz, 0 dB attenuation, reference level –20 dBm
DANL, preamp off, > 4.1 GHz to 5 GHz	–138 dBm max, –143 dBm typical RBW normalized to 1 Hz, 0 dB attenuation, reference level –20 dBm
DANL, preamp off, > 5 GHz to 6 GHz	–128 dBm max, –136 dBm typical RBW normalized to 1 Hz, 0 dB attenuation, reference level –20 dBm
DANL, preamp on, 10 MHz to 3.3 GHz	–162 dBm max, –165 dBm typical RBW normalized to 1 Hz, 0 dB attenuation, reference level –50 dBm
DANL, preamp on, > 3.3 GHz to 4.1 GHz	–159 dBm max, –162 dBm typical RBW normalized to 1 Hz, 0 dB attenuation, reference level –50 dBm
DANL, preamp on, > 4.1 GHz to 5 GHz	–156 dBm max, –160 dBm typical RBW normalized to 1 Hz, 0 dB attenuation, reference level –50 dBm
DANL, preamp on, > 5 GHz to 6 GHz	–146 dBm max, –154 dBm typical RBW normalized to 1 Hz, 0 dB attenuation, reference level –50 dBm

Residual Spurious, preamp off	(< –80 dBm) Typical; RF input terminated, 0 dB input attenuation, > 10 MHz
Residual Spurious, preamp on	(< –95 dBm) Typical; RF input terminated, 0 dB input attenuation, > 10 MHz
Residual Spurious, preamp on, 16 MHz to 18 MHz	(< –88 dBm) Typical; RF input terminated, 0 dB input attenuation
Input-Related Spurious	< –60 dBc 0 dB attenuation, –30 dBm input, carrier offset > 5 MHz
Second Harmonic Distortion, 50 MHz	(–50 dBc) Typical; 0 dB attenuation, –30 dBm input
Second Harmonic Distortion, > 50 MHz to 200 MHz	< –60 dBc Typical; 0 dB attenuation, –30 dBm input
Second Harmonic Distortion, > 200 MHz to 3000 MHz	< –60 dBc Typical; 0 dB attenuation, –30 dBm input
Third-Order Intercept (TOI), 800 MHz	(+7 dBm) Typical; preamp off, –20 dBm tones 100 kHz apart, 0 dB attenuation, reference level –20 dBm
Third-Order Intercept (TOI), 2400 MHz	(+17 dBm) Typical; preamp off, –20 dBm tones 100 kHz apart, 0 dB attenuation, reference level –20 dBm
Third-Order Intercept (TOI), 200 to 2200 MHz	(+10 dBm) Typical; preamp off, –20 dBm tones 100 kHz apart, 0 dB attenuation, reference level –20 dBm
Third-Order Intercept (TOI), > 2.2 GHz to 5.0 GHz	(+8 dBm) Typical; preamp off, –20 dBm tones 100 kHz apart, 0 dB attenuation, reference level –20 dBm
Third-Order Intercept (TOI), > 5.0 GHz to 6.0 GHz	(+14 dBm) Typical; preamp off, –20 dBm tones 100 kHz apart, 0 dB attenuation, reference level –20 dBm

100 MHz to 6 GHz, ≥ 10 dB attenuation	+30 dBm, ±50 VDC For lower frequencies, derate maximum continuous input by 6 dB per decade
300 kHz to 6 GHz, < 10 dB attenuation	+10 dBm, ±50 VDC For lower frequencies, derate maximum continuous input by 6 dB per decade
9 kHz to 6 GHz, preamp on	–10 dBm, ±50 VDC

Data Types	I/Q time series: 8, 10, 16 or 24 bit resolution; Spectrum trace: 100 to 4000 points
Data Transfer Modes	I/Q time series or spectrum trace in streaming or block mode
I/Q Data Streaming Rate	Gapless on 100Base-T network, Up to 2.6 MHz signal bandwidth
I/Q Data Time Stamp Resolution	8.7 ns
I/Q Recording Time, 20 MHz signal bandwidth	1.3 s (24 bits), 2.5 s (16 bits), 3.8 s (10 bits), 5 s (8 bits) Typical; output data rate 76.25 / 3 MSPS
I/Q Recording Time, 1.33 kHz signal bandwidth	4.66 h (24 bits), 9.33 h (16 bits), 13.99 h (10 bits), 18.65 h (8 bits) Typical; output data rate 76.25 / 40000 MSPS

System Status	Temperature, Serial Number, Firmware Version, Options Installed, Self Test, Application Self Test, GPS
System Options	Name, Date and Time, Reset (Factory Defaults, Master Reset, Update Firmware)
Directory Management	Sort Method (Name/Type/Date), Ascend/Descend, Internal/USB, Copy
Internal Trace/Setup Memory	4 GB internal memory available for storing files
Mode Switching	Automatically stores/recalls most recently used setup parameters in the mode

RF In	Type N, female port, 50 Ω
External Power	11 W, 5.5 mm barrel connector, 11 to 14 VDC
External Reference In	10 MHz, +10 dBm max, +5 VDC max, BNC(f)
Ethernet	1 RJ45 connector
USB	2 Type A interface connectors
GPS	SMA(f)
Power Consumption	<11 watts Low power consumption

European Union EMC	2014/30/EU, EN 61326:2013, CISPR 11/EN 55011, IEC/EN 61000-4-2/3/4/5/6/8/11
Low Voltage Directive	2014/35/EU
Safety	EN 61010-1:2010
RoHS Directive	2011/65/EU Applies to instruments with CE marking placed on the market after July 22, 2017
Australia and New Zealand	RCM AS/NZS 4417:2012
South Korea	KCC-REM-A21-0004
Canada	ICES-1(A)/NMB-1(A)

Environmental Standard	MIL-PRF-28800F Class 3
Operating Temperature Range	0 ºC to 50 ºC Web page and quick fact sheet state -40 °C to 50 °C; product brochure states –40 °C to +55 °C. Technical data sheet value shown.
Storage Temperature Range	–40 ºC to 71 ºC
Maximum Relative Humidity	95 % RH at 30 ºC, non-condensing
Vibration, Sinusoidal	5 Hz to 55 Hz
Vibration, Random	10 Hz to 500 Hz
Half Sine Shock	30 gn
Altitude	4600 meters, operating and non-operating
ESD, RF Input Pin	Withstands up to ±4 kV

Size	216 mm x 45 mm x 368 mm (8.5 in x 1.75 in x 14.5 in) ½ rack enclosure, 1U height
Weight	2.78 kg (6.2 lb)

Option	Description
MS27101A-0706	9 kHz to 6 GHz Frequency Range — Required frequency option for the MS27101A
MS27101A-0128	Vector Signal Analysis Enabled — Use with MX280005A
MS27101A-0001	Rack Mount Kit
MS27101A-0400	Vision Monitor Enabled
MS27101A-0401	Vision Locate Enabled — Requires Option 400
MS27101A-0407	Vision High-Speed Port Scanner Enabled
MS27101A-0486	Vision Coverage Mapping — Requires Option 407
MS27101A-0098	Standard Calibration to ISO17025 and ANSI/NCSL Z540-1 — Includes calibration certificate
MS27101A-0099	Premium Calibration to ISO17025 and ANSI/NCSL Z540-1 — Includes calibration certificate, test report, and uncertainty data
760-288-R	Transit Case

Anritsu MS27101A Remote Spectrum Monitor, 9 kHz to 6 GHz Half-Rack Indoor Spectrum Monitor

Overview

Remote operation

Connectivity and control

Software

Key Features

Specifications

Applications

Included

Options & Accessories

Documents & Resources

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