Anritsu MA24105A Inline Peak Power Sensor, True-RMS, 350 MHz to 4 GHz

True-RMS inline peak power sensor measuring forward and reverse power from 2 mW to 150 W over 350 MHz to 4 GHz.

Frequency Range: 350 MHz to 4 GHz
Measurement Range: 2 mW to 150 W (+3 dBm to +51.76 dBm)
Input Return Loss: ≥ 29.5 dB from 350 MHz to 3 GHz; ≥ 26.5 dB from > 3 GHz to 4 GHz
Insertion Loss: ≤ 0.15 dB from 350 MHz to 1.25 GHz; ≤ 0.20 dB from > 1.25 GHz to 4 GHz

Datasheet

Overview

The Anritsu MA24105A Inline Peak Power Sensor takes average power measurements from 2 mW to 150 W over a frequency range of 350 MHz to 4 GHz. It measures CW, multi-tone and digitally modulated signals such as GSM/EDGE, CDMA/EV-DO, W-CDMA/HSPA+, WiMAX and TD-SCDMA. The MA24105A belongs to the MA2410xA inline sensor family, alongside the MA24103A, which covers 25 MHz to 1 GHz.

Measurement architecture

A "dual path" architecture gives True-RMS measurements across the full frequency and dynamic range. The forward direction path includes a 4 MHz bandwidth channel with peak and comparator/integrator circuits, which add peak envelope power (PEP), crest factor, complementary cumulative distribution function (CCDF) and burst average power measurements. A detection circuit in the reverse direction adds reverse power, reflection coefficient, return loss and SWR measurements. Because the sensor contains a micro-controller, signal conditioning circuitry, an ADC and a power supply, it works as a complete miniature power meter.

Operation with a PC

The sensor connects over USB to a PC running Microsoft Windows (including Windows 11) and is used with the Anritsu PowerXpert application for data display, analysis and sensor control. PowerXpert provides data logging, power versus time graphs, a single sensor display, real-time settings updates and offset tables.

Operation with Anritsu handheld instruments

Anritsu handheld instruments that have the high accuracy power meter software Option 19 can operate the sensor through a USB A/Micro-B cable. The MA2410xA sensors work with most Anritsu handheld instruments; the instrument's technical data sheet confirms compatibility.

Key Features

True-RMS average power measurements to 150 W
Covers cellular and communication bands such as WLL, GSM/EDGE, CDMA/EV-DO, W-CDMA/HSPA+, WiMAX and TD-SCDMA
Forward and reverse measurements of transmitted power and reflections with a single inline sensor
Forward peak measurements: PEP, crest factor, CCDF and burst average power
Reverse measurements: reverse power, reflection coefficient, return loss and SWR
Wide dynamic range of 2 mW to 150 W (+3 dBm to +51.76 dBm)
Suited to high crest factor signals and base station transmitter output power measurements
High power handling > +51.7 dBm
Plug and play USB device operated from a PC with PowerXpert software v3.49 or later
Compatible with Anritsu handheld instruments with high accuracy power meter Option 19

Specifications

Base Average Power Measurement

Frequency Range	350 MHz to 4 GHz
Measurement Range	2 mW to 150 W (+3 dBm to +51.76 dBm)
Input Return Loss	≥ 29.5 dB from 350 MHz to 3 GHz; ≥ 26.5 dB from > 3 GHz to 4 GHz Web page lists >29.5 dB, ≤ 3 GHz and >26.5 dB, ≤ 4 GHz
Insertion Loss	≤ 0.15 dB from 350 MHz to 1.25 GHz; ≤ 0.20 dB from > 1.25 GHz to 4 GHz typical
Directivity	≥ 28 dB from 350 MHz to < 1 GHz; ≥ 30 dB from ≥ 1 GHz to ≤ 3 GHz; ≥ 28 dB from > 3 GHz to 4 GHz typical
RF Connectors	N (F)

Measurement Channel (Forward and Reverse)

Signal Channel Bandwidth	Average 100 Hz; Peak (Selectable) 4 MHz (Full), 200 kHz, 4 kHz
Measurement Range	Range 1: 2 mW to 6.31 W (+3 dBm to +38 dBm); Range 2: 6.31 W to 150 W (+38 dBm to +51.76 dBm)
Maximum Power	150 W average Maximum power depends upon the system SWR and frequency of operation
Measurement Uncertainty	±3.8% (Range 1 and Range 2) Expanded uncertainty with K=2 for power measurements of a CW signal with a matched load; results referenced to the input side of the sensor
Effect of Noise	±170 μW (Range 1); ±1.9 mW (Range 2) Expanded uncertainty with K=2 after zero operation, measured with 128 averages for 5 minutes
Effect of Zero Set	±250 μW (Range 1); ±3.0 mW (Range 2) One-hour warm up with no operation, measured with 128 averages for one hour keeping temperature within ±1 ºC
Effect of Zero Drift	±230 μW (Range 1); ±2.7 mW (Range 2) One-hour warm up with no operation, measured with 128 averages for one hour keeping temperature within ±1 ºC
Effect of Temperature (0 ºC to 50 ºC)	±0.06 dB
Effect of Digital Modulation	±0.02 dB

Forward Peak Power Measurement

Measurement Range, Burst Signal	2 W to 300 W (+33 dBm to +54.77 dBm)
Measurement Base Uncertainty, Full Bandwidth	±(Base Average Power Uncertainty +7% +400 mW) Repetition Rate ≥10/s, Duty Cycle ≥10%; Pulse Power > +34 dBm, Pulse Width > 1µs (Full BW)
Measurement Base Uncertainty, 4 kHz and 200 kHz Bandwidth	±(Base Average Power Uncertainty +3% +200 mW) Repetition Rate ≥10/s, Duty Cycle ≥10%; Pulse Power > +34 dBm, Pulse Width > 5µs (200 kHz BW), Pulse Width > 200 µs (4 kHz BW)
Effect of Low Repetition Rate	±1.6% ±150 mW ≤ 10/s
Effect of Low Duty Cycle	±100 mW 0.1% to 10%
Effect of Short Burst Width	±5% (500 ns to 1 μs); ±10% (200 ns to < 500 ns)
Effect of Temperature on Peak Circuit	±6% (0 ºC to 50 ºC) All measurement error effects should be RSSed before being added to the base error for overall measurement uncertainty

Reverse Power Measurement

Measurement Range	2 mW to 150 W (+3 dBm to +51.76 dBm)
Maximum Power	150 W average Maximum power depends upon the system SWR and frequency of operation
Measurement Uncertainty	±(Base Average Power Uncertainty) Expanded uncertainty with K=2 for power measurements of a CW signal with a matched load
Spread-spectrum Measurement Uncertainty	±(Base Average Power Uncertainty +15% +400 mW)

Complementary Cumulative Distribution Function (CCDF)

Measurement Uncertainty	±0.2% Pulse Power > +37 dBm, T > 50 μs (Full BW), T > 400 μs (200 kHz BW), T > 20 ms (4 kHz BW)
Threshold Range	2 mW to 300 mW (+3 dBm to +54.77 dBm) As printed; +54.77 dBm corresponds to 300 W
Accuracy of Threshold	±(Base Average Power Uncertainty at +5% +500 mW)

Burst Average Power

Measurement Uncertainty (User Mode)	Same as Base Average Power Uncertainty except Zero Set, Zero Drift and Noise are divided by duty cycle (t/T)
Measurement Uncertainty (Auto Mode)	±(Base Average Power Uncertainty except Zero Set, Zero Drift and Noise are divided by duty cycle (t/T) ±2%) Average Power > +33 dBm, Pulse width > 5 μs (Full BW), Pulse Width > 40 μs (200 kHz BW), Pulse Width > 2 ms (4 kHz BW)

Combination Measurements

Reflection Measurement Uncertainty	±(Base Average Power Uncertainty + Reverse Power Measurement Uncertainty)
Crest Factor Uncertainty	±(Base Average Power Uncertainty + Forward Peak Power Measurement Uncertainty)

System

Measurement Resolution	0.01 dB (Forward/Reverse True-RMS Average Power, Peak Power, Crest Factor, Burst Average Power); 0.01% (CCDF)
Offset Range	100 dB (Forward/Reverse True-RMS Average Power, Peak Power, Crest Factor, Burst Average Power); 100% (CCDF)
Averaging Range	1 to 512 All measurement types
Measurement Speed	1.7 /s (Forward/Reverse True-RMS Average Power), 2.5 /s (Peak Power), 1.4 /s (Crest Factor), 0.7 /s (Burst Average Power), 1.6 /s (CCDF) typical; rate at which the measurement or calculation is updated in a data log

General

USB	180 mA typical at 5 V
Size (H x W x D)	108 mm x 97 mm x 36 mm excluding N Connectors
Weight	535 g (1.18 lb)
Calibration Cycle	2 years Recommended
Warm-Up Time	20 minutes Specifications apply after warm-up with the sensor left in the on state

Environmental

Operating Temperature	0 °C to 50 °C Tests performed per MIL-PRF-28800F (Class 2)
Storage Temperature	–51 °C to 71 °C
Maximum Relative Humidity	45% relative humidity at 55 ºC; 75% relative humidity at 40 ºC; 95% relative humidity at 30 ºC non-condensing
Mechanical Shock	30 g half-sine, 11 ms duration
Vibration	Sinusoidal: 5 to 55 Hz, 3 g max; Random: 10 Hz to 500 Hz, Power Spectral Density: 0.03 g²/Hz

Regulatory Compliance

European Union EMC	2014/30/EU, EN 61326-1:2013, 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 & 2015/863
United Kingdom	EMC SI 2016/1091; BS EN 55011 & BS 61000-4-2/3/4/5/6/8/11; Consumer Protection (Safety) SI 2016/1101; BS EN 61010-1:2010; Environmental Protection SI 2012/3032; 2011/65/EU & 2015/863
Australia and New Zealand	RCM AS/NZS 4417:2012
South Korea	R-R-A2J-1014
Canada	ICES-1(A)/NMB-1(A)
Warranty	1 Year Warranty

Ordering Information

MA24105A	300 MHz to 4 GHz Inline Peak Power Sensor Ordering table states 300 MHz; specifications and web page give 350 MHz to 4 GHz

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

Applications

Cellular base station transmitter power monitoring
Broadcast networks and LMR systems
Antenna reflection measurement
Avionics and airport navigation systems
Railroad braking system monitoring
Testing high power devices such as power amplifiers
General purpose measurement of through and reflected power
R&D and manufacturing test

Included

2000-1606-R 1.8 m USB 2.0 A to Micro-B cable

Options & Accessories

Option	Description
MA24105A-0098	Option 98, Standard calibration to ISO17025 and ANSI/NCSL Z540
MA24105A-0099	Option 99, Premium calibration to ISO17025 and ANSI/NCSL Z540 — Test report and uncertainty data included.
510-90	Precision coaxial adapter, N(m) to 7/16 DIN(f), DC to 3.3 GHz
510-91	Precision coaxial adapter, N(f) to 7/16 DIN(f), DC to 3.3 GHz
510-92	Precision coaxial adapter, N(m) to 7/16 DIN(m), DC to 3.3 GHz
510-93	Precision coaxial adapter, N(f) to 7/16 DIN(m), DC to 3.3 GHz
34ANF50	Precision coaxial adapter, GPC-7 to N(f), DC to 18 GHz
34NFK50	Precision coaxial adapter, N(f) to K(m), DC to 18 GHz
34NFKF50	Precision coaxial adapter, N(f) to K(f), DC to 18 GHz
34NK50	Precision coaxial adapter, N(m) to K(m), DC to 18 GHz
34NFNF50	Precision coaxial adapter, N(m) to N(m), DC to 18 GHz
34NKF50	Precision coaxial adapter, N(m) to K(f), DC to 18 GHz
34AN50	Precision coaxial adapter, GPC-7 to N(m), DC to 18 GHz
34NN50A	Precision coaxial adapter, DC to 18 GHz, 50 Ω, N(m)-N(m)
1010-121-R	Attenuator, 40 dB, 100 W, D to 18 GHz, N(f) to N(m), Uni-directional
42N50-20	Attenuator, 20 dB, 5 W, DC to 18 GHz, N(m) to N(f)
3-1010-122	Attenuator, 20 dB, 5 W, DC to 12.4 GHz, N(m) to N(f)
42N50A-30	Attenuator, 30 dB, 50 W, DC to 18 GHz, N(m) to N(f)
3-1010-123	Attenuator, 30 dB, 50 W, DC to 8.5 GHz, N(m) to N(f)
1010-127-R	Attenuator, 30 dB, 150 W, DC to 3 GHz, N(m) to N(f)
3-1010-124	Attenuator, 40 dB, 100 W, DC to 8.5 GHz, N(f) to N(m), Uni-directional
1010-128-R	Attenuator, 40 dB, 150 W, DC to 3 GHz, N(m) to N(f)
01-200	Calibrated Torque End Wrench, GPC-7 and Type N
2000-1594-R	5 meters USB A to Mini-B cable
2000-1593-R	3 meters USB A to Mini-B cable
28N50-3	Precision termination, DC to 8.6 GHz, 50 Ω, N male
28NF50-2	Precision termination, DC to 18 GHz, 40 dB, 50 Ω, N female
28N50-2	Precision termination, DC to 18 GHz, 40 dB, 50 Ω, N male