MS2721A

The Anritsu MS2721A Spectrum Master is a highly capable handheld spectrum analyzer designed for field analysis of wireless signals up to 7.1 GHz, featuring excellent phase noise performance, low DANL, and integrated AM/FM/SSB demodulation.

RF and Microwave Spectrum Analysis Wireless Communications

Specifications

General

Parameter	Value
Interfaces	RJ45 Ethernet 10/100 Base T, USB 2.0
Display	Large daylight viewable transflective color display

Physical

Parameter	Value
Power Supply	External DC: 12 to 15 VDC, 5.0 A max; AC/DC Adapter: 100-240 VAC, 50-60 Hz (Output: 15 VDC, 5.0 A max); Battery: Rechargeable Li-Ion, 10.8 V, 4.8 Ah
Operating Temperature	-10 °C to 55 °C
Dimensions (W×H×D)	313 mm x 211 mm x 77 mm
Weight	3.13 kg

Frequency Specifications

Parameter	Value
Frequency Range	100 kHz to 7.1 GHz
Phase Noise	-100 dBc/Hz @ 10 kHz offset

Bandwidth (RBW/VBW)

Parameter	Value
Resolution Bandwidth (RBW) Range	10 Hz to 3 MHz
Resolution Bandwidth (RBW) Steps	1-3 sequence
Video Bandwidth (VBW) Range	1 Hz to 3 MHz
Video Bandwidth (VBW) Steps	1-3 sequence

Amplitude and Sensitivity Specifications

Parameter	Value
Displayed Average Noise Level (DANL) - Preamp On	<-153 dBm typical in 10 Hz RBW at 1 GHz
Amplitude Accuracy	±0.5 dB typical
Internal Preamplifier	Standard
Input Attenuator Control	Automatic or manual

Connectivity and Interfaces

Parameter	Value
RF Input Impedance	50 Ω

Measurement Capabilities and Features

Parameter	Value
Number of Markers	6 markers plus 6 delta markers
Trace Display	Up to 3 traces
Trace Averaging	Supported
Reference Level Offset	Supported
Demodulation Capabilities	AM, FM, SSB (with built-in speaker and headset jack)
Limit Lines	Multi-segmented upper and lower limit lines
Setup Storage	Up to 1000 measurement test set-ups
Trace Storage	Up to 1000 measurement traces
Alphanumeric Labeling	Supported for saved measurements
Data Timestamping	Automatic time and date stamp of saved data

Hardware and Software Options

Parameter	Value
Interference Analysis Option (Option 25)	Spectrogram display, signal strength with audible tone, and RSSI
Channel Scanner Option (Option 27)	Monitor up to 20 channels or signals

Physical and Environmental

Parameter	Value
Form Factor	Handheld, battery-operated

RF Input & Protection

Parameter	Value
RF Input Connector	Type N, female, 50 Ω
Maximum Input Level	+30 dBm (1 W) continuous, ±50 VDC (damage level)

Frequency Reference

Parameter	Value
Frequency Reference Aging	±1 ppm/year
Frequency Reference Temperature Stability	±1 ppm (0 °C to 50 °C)

Sweep

Parameter	Value
Sweep Time	100 ms to 600 s (span > 0 Hz), 10 μs to 600 s (zero span)
Sweep Trigger	Free Run, Single, Video, External

Connectivity

Parameter	Value
External Reference Input	10 MHz, BNC female, -10 dBm to +10 dBm
External Trigger Input	BNC female, TTL level

Power

Parameter	Value
Battery Operating Time	Typical > 2 hours

Options

Parameter	Value
GPS Receiver Option (Option 31)	Provides location (latitude, longitude, altitude) and UTC time; requires external GPS antenna
Bias Tee Option (Option 10)	Provides 12 V to 24 V DC bias voltage on RF input connector (6 W max)
Transmission Measurement Option	Option 2
High Accuracy Power Meter Option	Option 19 (requires external sensor)
AM/FM/PM Demodulation Option	AM/FM/SSB Demodulator Option = Option 29

Performance

Parameter	Value
Input Attenuator Range	0 to 65 dB in 5 dB steps
Dynamic Range	> 101 dB (in 10 Hz RBW)
Third-Order Intercept (TOI)	+11 dBm typical (at 2.4 GHz, preamp off)

Environmental

Parameter	Value
Storage Temperature	-40 °C to +75 °C
Maximum Operating Altitude	4,600 m

Storage

Parameter	Value
Storage Card Slot	CompactFlash (Type I/II)

Technology

RF and Microwave Spectrum Analysis

Applications

Field Analysis of Wireless Signals, Interference Mitigation, Channel Scanning