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Anritsu MS2721B Spectrum Analyzers

SKU: 9S41

Anritsu MS2721B Spectrum Analyzer
The Spectrum Master MS272xB is a synthesizer-based handheld spectrum analyzer that provides quick and accurate measurement results. Measurements can be easily made by using the main instrument functions: frequency, span, amplitude, and bandwidth. Dedicated keys for common functions and a familiar calculator-type keypad are available for fast data entry.

The Spectrum Master is designed for monitoring, measuring, and analyzing signal environments. Typical measurements include: in-band interference and transmit spectrum analysis, digital television transmitter testing and analysis (in models MS2721B and MS8911B), plus cell site and 802.11a/b/g interference testing. Options are available (for models MS2721B, MS2723B, and MS2724B for RF, advanced demodulation, and over-the-air (OTA) measurement. A full range of marker capabilities (such as peak, center, and delta functions) are provided for faster, more comprehensive analysis of displayed signals. Upper and lower multi-segmented limit lines are available to create quick, simple pass/fail measurements. A menu option provides for an audible alert when a limit value is exceeded.

Anritsu MS2721B

Continuous frequency coverage from 9 kHz to 7.1 GHz gives the wireless professional the performance needed for the most demanding measurements in harsh RF and physical environments.Whether you need spectrum monitoring, AM and FM broadcast proofing, WiFi and WiFi5 installation and testing, RF and microwave signal measurements or cellular signal measurements, the MS2721B Spectrum Master is the tool to make your job easier and more productive.


  • 9 kHz to 7.1 GHz Input
  • 1 Hz to 3 MHz RBW Range
  • Very Low Phase Noise (?100 dBc/Hz Maximum at 10 kHz offset at 100 kHz to 7.1 GHz)
  • Built-in AM/FM/SSB Demodulator
  • Built-in Preamplifier
  • 65 dB Step Attenuator
  • Input Protected to 20 Watts
  • True RMS Detection
  • 2+ Hours of Battery Life
  • 3.1 kg (<6.9 lbs)
  • 3G Modulation options
  • Tracking Generator option
  • GPS Receiver option
  • Quasi-peak detector and CISPR bandwidths



Frequency Range: 9 kHz to 7.1 GHz
Tuning Resolution: 1 Hz
Frequency Reference:
Aging: ±1 ppm per 10 years
Accuracy: ±0.3 ppm (25º C ± 25º C) + aging
Frequency Span: 10 Hz to 7.1 GHz plus 0 Hz (zero span)
Span Accuracy: Same as frequency reference accuracy
Sweep Time:
Zero span: 10 ms to 600s
Spans >0 Hz: Sweep time is automatically optimized.
Can be manually increased
Sweep Time Accuracy: ±2% in zero span
Sweep Trigger: Free run, Single, Video, External
Resolution Bandwidth: (?3 dB) 1 Hz to 3 MHz in 1-3 sequence ±10%,
200 Hz, 9 kHz, 120 kHz when quasi-peak detector selected,
10MHz demodulation bandwidth
Video Bandwidth: : (?3 dB) 1 Hz to 3 MHz in 1-3 sequence
SSB Phase Noise:
Offset from carrier
10, 20 and 30 kHz
?100 dBc/Hz
100 kHz ?102 dBc/Hz
Measurement Range: DANL to +30 dBm
Display Range: 1 to 15 dB/div in 1 dB steps. Ten divisions displayed
Amplitude Units:
Log Scale Modes: dBm, dBV, dBmv, dBµV
Linear Scale Modes: nV, µV, mV, V, kV, nW, µW, mW, W, kW
Attenuator Range: 0 to 65 dB
Attenuator Resolution: 5 dB steps
Absolute Amplitude Accuracy:
Power levels: =?50 dBm, =35 dB input attenuation
9 kHz to =10 MHz ±1.5 dB
>10 MHz to 4 GHz ±1.25 dB
>4 to 7.1 GHz ±1.75 dB
40 to 55 dB input attenuation
9 kHz to =10 MHz ±1.5 dB
>10 MHz to 4 GHz ±1.75 dB
>4 to 6.5 GHz ±1.75 dB
>6.5 to 7.1 GHz ±2 dB
60 to 65 dB input attenuation
9 kHz to =10 MHz ±1.5 dB
>10 MHz to 6.5 GHz ±1.75 dB
>6.5 to 7.1 GHz ±3 dB
Preamplifier on, 0 or 10 dB input attenuation
100 kHz to 4 GHz ±1.5 dB
>4 to 7.1 GHz ±1.75 dB
Second Harmonic Distortion
(0 dB input attenuation, ?30 dBm input):
0.05 to 1.4 GHz ?50 dBc
>1.4 to 2 GHz ?70 dBc
>2 GHz ?80 dBc
Third Order Intercept (TOI):
(?20 dBm tones 100 kHz apart, ?20 dBm Ref level,
0 dB input attenuation, preamplifier off
Frequency Min
600 MHz +7 dBm
3.5 GHz +9 dBm
Frequency Typical
50 MHz to 300 MHz >8 dBm
>300 MHz to 2.2 GHz 10 dBm
>2.2 to 2.8 GHz >15 dBm
>2.8 to 4.0 GHz >10 dBm
>4.0 to 7.1 GHz >13 dBm
Dynamic Range 2/3 (TOI-DANL) in 1 Hz RBW
600 MHz 95 dB min
3.5 GHz 96 dB min
RF Input VSWR: (=10 dB input attenuation) 2.0:1 max, 1.5:1 typical
Maximum Continuous Input: (=10 dB input attenuation) +30 dBm
Input Damage Level =10 dB input attenuation, >+43 dBm, ±50 Vdc
<10 dB input attenuation, >+23 dBm, ±50 Vdc2
Input protection relay opens at >30 dBm with =10 dB input attenuation
and at approximately 10 to 23 dBm with <10 dB input attenuation. with limited dV/dt.
ESD Damage Level: (=10 dB input attenuation) >10 kV
External Reference Frequencies: 1, 1.2288, 1.544, 2.048, 2.4576, 4.8,
4.9152, 5, 9.8304, 10, 13 and 19.6608 MHz at ?10 dBm to +10 dBm
Battery Life: 2.5 hours typical
Display Bright daylight-viewable color transmissive LCD: Full SVGA, 8 in
Languages Built-in English, Spanish, Italian, French, German, Japanese, Korean, and
Chinese. The instrument also has the capability to have two customized
languages installed from Master Software Tools.
Marker Modes 6 Markers, 9 Modes: Normal, Delta, Marker to Peak, Marker to Center,
Marker to Reference Level, Next Peak Left, Next Peak Right, All Markers
Off, Noise Marker, Frequency Counter Marker (1 Hz resolution), Markers
Tracking or Fixed, Marker 1 reference for all deltas.
Sweeps Full span, Zero span, Span Up/Span Down
Detection Peak, Negative peak, Sample, RMS, Quasi-peak
Memory Trace and Setup storage is limited only by the capacity of the installed
Compact Flash card or USB Flash drive. For a 512 MB card, storage is
greater than 13000 spectrum analyzer traces and over 10000 setups
Traces Displayed Traces: Three Traces with trace overlay. Trace A is always
the live data; Traces B and C can be either stored data or traces which
have been mathematically manipulated. Also Trace C can show max hold
or min hold.
Interfaces Type N female RF connector for Spectrum Analyzer input
Type N female RF connector for optional Tracking Generator
Reverse polarity BNC jack for optional GPS antenna connector
BNC female connectors for ext. reference and ext. trigger
5-pin Mini-B USB 2.0 for data transfer to a PC
USB 2.0 Host connector used with PSN50 High Accuracy Power Meter
and USB Flash Drives
RJ45 connector for Ethernet 10/100 Base T
2.5 mm 3-wire headset connector
Size and Weight
Size: 313W x 211H x 77D mm (12W x 8H x 3D in.)
Weight: 3.1 kg (<6.9 lbs.) typica
Operating: ?10º C to 55º C, humidity 85% or less
Storage: ?51º C to 71º C
Altitude: 4600 meters, operating and non-operating

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Anritsu MS2721B Spec Sheet