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MA24350A

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MA24350A

Microwave CW USB Power Sensor MA24350A, 10 MHz to 50 GHz

USB power sensor for CW average power measurements from 10 MHz to 50 GHz over a 90 dB dynamic range, with no zeroing required for most signals.

Frequency Range: 10 MHz to 50 GHz
Video Bandwidth: 50 kHz

Datasheet

Overview

The Anritsu MA24350A is a microwave CW USB power sensor that measures average power from 10 MHz to 50 GHz across 90 dB of dynamic range through a V(m) connector. It is the 50 GHz member of the MA243x0A series, which also includes the 33 GHz MA24330A and the 40 GHz MA24340A with K(m) connectors. The sensor uses a single-path diode architecture with digital processing that delivers more than 2,100 continuous or 5,600 buffered power readings per second.

A low-noise design removes the need to zero the sensor before measurements for most applications, and no 1 mW reference calibration is required. Internal and external triggering supports time-based measurements, and a list mode speeds up automated test sequences.

Control and connectivity

The sensor connects to a host through a USB 2.0 Micro-B port and can be controlled from a PC with remote programming commands or with PowerXpert, Anritsu's free software application. It is also compatible with most Anritsu RF and microwave handheld instruments; a high accuracy power meter software option such as Option 19 may be required on the instrument.

Ruggedness and calibration

Damage protection of +26 dBm CW and a removable silicone protective covering add durability for field use. The covering is required for warranted operation. Calibration is NIST traceable and traceable to SI units via national metrology institutes, and Anritsu recommends a 12-month calibration interval.

Key Features

Frequency range 10 MHz to 50 GHz with V(m) connector
Power measurement range +20 dBm to –70 dBm (90 dB dynamic range)
CW average power measurements
Fast measurement speed: >2,100 readings/s continuous, >5,600 readings/s buffered
High damage protection: +26 dBm CW, +32 dBm peak for pulses under 10 µs
No zeroing required for signals above –45 dBm
No 1 mW reference calibration required
Internal and external triggering for time-based measurements
External trigger latching for pulses as narrow as 20 ns
List mode for faster automated test sequences
NIST traceable calibration, traceable to SI units via national metrology institutes
Controlled from a PC via remote commands or the free PowerXpert software
Compatible with most Anritsu RF and microwave handheld instruments
Removable silicone protective covering for field durability
Single-path diode architecture
Worldwide calibration and service centers

Specifications

Frequency

Frequency Range	10 MHz to 50 GHz V(m) connector
Video Bandwidth	50 kHz

Power Measurement

Dynamic Range	–70 dBm to +20 dBm
Damage Levels at RF Port	+26 dBm, ±20 V DC +32 dBm peak <10 μs pulse and 10 % duty cycle; minimum

Response

Signal Channel Rise Time	8 μs Characteristic
Sampling Rate	140 kS/s

VSWR

<50 MHz	1.9:1
50 to 150 MHz	1.17:1
>0.15 to 2 GHz	1.08:1
>2 to 6 GHz	1.16:1
>6 to 18 GHz	1.21:1
>18 to 33 GHz	1.29:1
>33 to 40 GHz	1.44:1
>40 to 50 GHz	1.5:1

Trigger

Source	Bus, Continuous, Internal, External Bus trigger is not available in PowerXpert application
Arm Type (for Internal/External)	Auto, Single, Multiple, Standby

Internal Trigger

Dynamic Range	–35 dBm to +20 dBm
Level Accuracy	±0.5 dB Characteristic
Slope	Positive or Negative
Delay Range	–5 ms to +10 s
Delay Resolution	10 μs
Hysteresis	0 dB to 10 dB 0.1 dB resolution
Trigger Hold Off	0 s to 10 s 0.01 ms resolution

External Trigger

External Trigger Input	MCX (female), 5.5 V maximum
Input Impedance	4 kΩ Nominal
Type	TTL/CMOS
Slope	Positive or Negative
Delay Range	–5 ms to +10 s
Delay Resolution	10 μs
High Level Input Voltage	2.3 V min, 3.0 V max
Low Level Input Voltage	1.3 V min, 1.6 V max
Latency	7.1 μs max Time delay between the defined edge of the applied trigger and the sensor switching into the triggered state
Trigger Pulse Width	20 ns min
Trigger Repetition Period	7.1 μs min
Trigger Holdoff	0 s to 10 s 0.01 ms resolution

Measurement Uncertainty, Average Power (25 °C to 35 °C)

–70 to <+15 dBm, ≤18 GHz	0.11 k=2, CW measurement after zero operation; includes calibration factor and linearity over temperature, excludes mismatch, zero set and drift, and noise
–70 to <+15 dBm, >18 GHz to 40 GHz	0.13 k=2, CW measurement after zero operation
–70 to <+15 dBm, >40 GHz to 50 GHz	0.19 k=2, CW measurement after zero operation
+15 to +20 dBm, ≤18 GHz	0.14 k=2, CW measurement after zero operation
+15 to +20 dBm, >18 GHz to 40 GHz	0.17 k=2, CW measurement after zero operation
+15 to +20 dBm, >40 GHz to 50 GHz	0.23 k=2, CW measurement after zero operation

Measurement Uncertainty, Average Power (0 °C to 50 °C)

–70 to <+15 dBm, ≤18 GHz	0.14 k=2, CW measurement after zero operation; product page lists 0.15 for 10 MHz to 18 GHz
–70 to <+15 dBm, >18 GHz to 40 GHz	0.17 k=2, CW measurement after zero operation
–70 to <+15 dBm, >40 GHz to 50 GHz	0.25 k=2, CW measurement after zero operation; product page lists 0.17 for 18 GHz to 50 GHz combined
+15 to +20 dBm, ≤18 GHz	0.18 k=2, CW measurement after zero operation
+15 to +20 dBm, >18 GHz to 40 GHz	0.21 k=2, CW measurement after zero operation
+15 to +20 dBm, >40 GHz to 50 GHz	0.29 k=2, CW measurement after zero operation; product page lists 0.21 for 18 GHz to 50 GHz combined

Zero Set and Drift

Zero Set, –70 to –20 dBm	9.68E-11 W (–70.14 dBm) k=3; one hour warm-up followed by Zero; 256 averages, 40 ms aperture, temperature within ±1 °C; valid at 30 °C ± 5 °C
Zero Set, >–20 to 0 dBm	4.95E-09 W (–53.05 dBm) k=3; valid at 30 °C ± 5 °C
Zero Set, >0 to +20 dBm	1.56E-08 W (–48.08 dBm) k=3; valid at 30 °C ± 5 °C
Zero Drift, –70 to –20 dBm	8.90E-11 W (–70.50 dBm) Two sigma value of the reported power over one hour; valid at 30 °C ± 5 °C
Zero Drift, >–20 to 0 dBm	4.14E-09 W (–53.83 dBm) Two sigma value over one hour; valid at 30 °C ± 5 °C
Zero Drift, >0 to +20 dBm	1.72E-08 W (–47.65 dBm) Two sigma value over one hour; valid at 30 °C ± 5 °C

Noise

Noise, –70 to –20 dBm	3.53E-11 W (–74.52 dBm) Two sigma noise at 10.2 seconds of integration time; k=3; valid at 30 °C ± 5 °C
Noise, >–20 to 0 dBm	6.51E-11 W (–71.86 dBm) Two sigma noise at 10.2 seconds of integration time; k=3
Noise, >0 to +20 dBm	6.30E-10 W (–62.01 dBm) Two sigma noise at 10.2 seconds of integration time; k=3

System

Measurand	Average power
Measurement Resolution	0.01 dB max via PowerXpert, 0.001 dB max via remote command
Offset Correction	–100 dB to +150 dB Available only through the PowerXpert application; no remote command in the sensor firmware
Averaging	Auto, Manual
Averaging Type	Moving, Repeat
Number of Averages (Manual)	1 to 65,536 Maximum in Continuous Average mode is 65,536; in Scope mode the maximum equals 16,777,216 divided by the number of data points
Auto Average Resolution	1 dB, 0.1 dB, 0.01 dB 0.001 dB resolution is not available with the PowerXpert application
Auto Average Source	Scope Data Point Number: 1 to 16,384

Continuous Average Mode

Duty Cycle Correction	0.01 % to 100 %
Aperture Time	0.01 ms to 1 s
Measurement Speed, Continuous	>2,100 readings/s Minimum aperture, one average; measured at the A end of the USB cable; may vary with host CPU speed and load
Measurement Speed, Buffered	>5,600 readings/s Minimum aperture, one average; may vary with host CPU speed and load
Buffer Size	8192

Scope Mode

Capture Time	0.01 ms to 1 s
Data Points	1 to 16,384
Resolution	0.01 ms max

List Mode

Number of Measurements	1 to 1000
Input Parameters	Frequency (GHz), aperture time (ms), averages

PowerXpert PC Requirements

Software Version	3.0 or greater
Processor and RAM	Minimum: equivalent to Intel Pentium III with 1 GB RAM or Intel Pentium IV with 512 MB RAM; Recommended: equivalent to Intel Pentium IV with 1 GB RAM
Operating System	Microsoft Windows 8, Windows 7, and Windows XP
Hard-Disk Free Space	100 MB minimum
Display Resolution	1024 × 768 minimum
Interface	USB 2.0 high speed

General

RF Connector	V male
Interface to Host	USB 2.0 high speed USB Micro-B port for connectivity to PC or Anritsu handheld instrument
Current Consumption	410 mA to 450 mA Characteristic, 20 °C to 30 °C
Size	110 mm x 46 mm x 25.6 mm Excluding V connector and silicone protective covering
Weight	397 g (0.88 lb)
Warranty	1 year
Calibration Cycle	12 months Anritsu recommended calibration interval
Warm-Up Time	60 minutes Condition for all specifications unless otherwise stated

Environmental

Operating Temperature Range	0 °C to 50 °C Tests were performed per MIL-PRF-28800F (Class 3)
Storage Temperature Range	–40 °C to +71 °C
Humidity	45 % relative humidity at 50 °C; 75 % relative humidity at 40 °C; 95 % relative humidity at 30 °C Non-condensing
Altitude	4600 m Operational max
Shock	30 gn half-sine, 11 ms duration
Vibration, Sinusoidal	5 Hz to 55 Hz, 3 g max
Vibration, Random	10 Hz to 500 Hz, Power Spectral Density 0.03 g²/Hz

Regulatory Compliance

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
Australia and New Zealand	RCM AS/NZS 4417:2012
South Korea	KCC-REM-A21-0004

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

Applications

General purpose RF and microwave power measurement
Aerospace and defense
Satellite communications
Wireless communications
Production test

Included

10585-00021 Quick Start Guide
2000-1605-R 1.5 m BNC(m) to MCX(m) cable
2000-2010-R 1.83 m USB A to Micro-B cable

Options & Accessories

Option	Description
MA24350A-098	Option 98: Standard calibration ISO/IEC 17025 and ANSI/NCSL Z540-1
MA24350A-099	Option 99: Premium calibration ISO/IEC 17025 and ANSI/NCSL Z540-1 — Includes test report and uncertainty data
01-201	Calibrated torque wrench for K and V connectors
41V-3	Precision fixed attenuator, DC to 60 GHz, 3 dB, 50 Ω, V(m) to V(f)
41V-6	Precision fixed attenuator, DC to 60 GHz, 6 dB, 50 Ω, V(m) to V(f)
41V-10	Precision fixed attenuator, DC to 60 GHz, 10 dB, 50 Ω, V(m) to V(f)
41V-20	Precision fixed attenuator, DC to 60 GHz, 20 dB, 50 Ω, V(m) to V(f)
41KB-3	Precision fixed attenuator, DC to 26.5 GHz, 3 dB, 50 Ω, K(m) to K(f)
41KB-6	Precision fixed attenuator, DC to 26.5 GHz, 6 dB, 50 Ω, K(m) to K(f)
41KB-10	Precision fixed attenuator, DC to 26.5 GHz, 10 dB, 50 Ω, K(m) to K(f)
41KB-20	Precision fixed attenuator, DC to 26.5 GHz, 20 dB, 50 Ω, K(m) to K(f)
41KC-3	Precision fixed attenuator, DC to 40 GHz, 3 dB, 50 Ω, K(m) to K(f)
41KC-6	Precision fixed attenuator, DC to 40 GHz, 6 dB, 50 Ω, K(m) to K(f)
41KC-10	Precision fixed attenuator, DC to 40 GHz, 10 dB, 50 Ω, K(m) to K(f)
41KC-20	Precision fixed attenuator, DC to 40 GHz, 20 dB, 50 Ω, K(m) to K(f)
43KB-3	Precision fixed attenuator, DC to 26.5 GHz, 3 dB, 50 Ω, K(m) to K(f)
43KB-6	Precision fixed attenuator, DC to 26.5 GHz, 6 dB, 50 Ω, K(m) to K(f)
43KB-10	Precision fixed attenuator, DC to 26.5 GHz, 10 dB, 50 Ω, K(m) to K(f)
43KB-20	Precision fixed attenuator, DC to 26.5 GHz, 20 dB, 50 Ω, K(m) to K(f)
43KC-3	Precision fixed attenuator, DC to 40 GHz, 3 dB, 50 Ω, K(m) to K(f)
43KC-6	Precision fixed attenuator, DC to 40 GHz, 6 dB, 50 Ω, K(m) to K(f)
43KC-10	Precision fixed attenuator, DC to 40 GHz, 10 dB, 50 Ω, K(m) to K(f)
43KC-20	Precision fixed attenuator, DC to 40 GHz, 20 dB, 50 Ω, K(m) to K(f)
33VFVF50C	Precision coaxial adapter, DC to 70 GHz, 50 Ω, V(f) to V(f)
33VVF50C	Precision coaxial adapter, DC to 70 GHz, 50 Ω, V(m) to V(f)
33KFKF50B	Precision coaxial adapter, DC to 40 GHz, 50 Ω, K(f) to K(f)
33KKF50B	Precision coaxial adapter, DC to 40 GHz, 50 Ω, K(m) to K(f)
34NKF50	Precision coaxial adapter, DC to 18 GHz, 50 Ω, N(m) to K(f)
34NFKF50	Precision coaxial adapter, DC to 18 GHz, 50 Ω, N(f) to K(f)