Low Cost, Compact, and Highly Accurate Power Sensors
for RF and Microwave Applications
MA24208A
True-RMS, 10 MHz to 8 GHz
MA24218A
True-RMS, 10 MHz to 18 GHz
MA24208A/MA24218ASpecifications
Introduction
The MA24208A and MA24218A Universal USB Power sensors are designed to provide accurate average power
measurements from 10 MHz to 8 GHz and 18 GHz, respectively, over 80 dB of dynamic range. The sensors employ a
patented “triple path” architecture that provides True-RMS measurements over the entire frequency and dynamic range
(similar to thermal sensors), enabling users to make highly accurate average power measurements for CW, multi-tone,
and digitally modulated signals up to 18 GHz.
Features and Benefits
• Broad Frequency Range (10 MHz to 18 GHz): Ideal for general purpose, aerospace and defense, satellite and wireless
communications applications
• True RMS Measurements over 80 dB Dynamic Range: Enables average power measurement on CW, multi-tone, and digitally
modulated signals - independent of modulation bandwidth
Characteristic PerformanceCharacteristic specifications are not tested and are not warranted.
ISO GUM Measurement UncertaintyZero and Noise uncertainty expressed with three sigma confidence level.
Calibration CycleAnritsu recommended calibration interval is 12 months.
All specifications and characteristics apply under the following conditions, unless otherwise stated:
Average and Relative Power uncertainty expressed with two sigma confidence level.
All specifications subject to change without notice. For the most current data sheet, please visit the Anritsu
www.anritsu.com
web site:
NotesMA24208A and MA24218A sensors may have degraded performance when dropped without the removable
protective covering. This cover is required for warranted operation.
MA24208A/MA24218A TDSPN: 11410-00841 Rev. D3 of 9
MA24208A/MA24218ASpecifications
Sensor Specifications
Frequency
MA24208A10 MHz to 8 GHz
MA24218A10 MHz to 18 GHz
Power Measurement
Dynamic Range–60 dBm to +20 dBm
VSWR, max1.17:11.12:11.22:11.25:1
Measurement Range 1+20 dBm to +4 dBm approximate
Measurement Range 2<+4 dBm to –16 dBm approximate
Measurement Range 3<–16 dBm to –60 dBm approximate
Damage Levels at RF Port+30 dBm, ±20 V DC (+34 dBm peak < 10 μs pulse and 10 % duty cycle), minimum
≤150 MHz>150 MHz to 2 GHz>2 GHz to 12.4 GHz>12.4 GHz to 18 GHz
Auto and fixed ranging available
Response
Signal Channel Rise Time8 μs characteristic
Sampling Rate140 kS/s
Trigger
Arm Type (for Internal/External)Auto, Single, Multiple, Standby
Source1Bus, Continuous, Internal, External
Internal Trigger
Dynamic Range–35 dBm to +20 dBm
Level Accuracy±0.5 dB characteristic
SlopePositive or Negative
Delay Range–5 ms to +10 s
Delay Resolution10 μs
Hysteresis0 to 10 dB, with 0.1 dB resolution
Trigger Hold Off0 to 10 sec, with 0.01 ms resolution
External Trigger
External Trigger InputMCX (female), 5.5 V maximum
High Level Input Voltage2.3 V min, 3.0 V max
Low Level Input Voltage1.3 V min, 1.6 V max
Trigger Repetition Period7.1 μs min
Impedance4 kΩ nominal
TypeTTL/CMOS
SlopePositive or Negative
Delay Range–5 ms to +10 s
Delay Resolution10 μs
2
Latency
Trigger Pulse Width20 ns min
Trigger Hold Off0 s to 10 s with 0.01 ms resolution
7.1 μs max
1. Bus trigger is not available in PowerXpert application.
2. Latency is defined as the time delay between the defined edge of the applied trigger and the sensor switching into the triggered state.
4 of 9PN: 11410-00841 Rev. DMA24208A/MA24218A TDS
SpecificationsMA24208A/MA24218A
Measurement Uncertainty
Average Power (dB)3Over 0 °C to 50 °C ambient temperature range:
Range (dBm)≤0.05 GHz >0.05 to 2 GHz >2 to 12.4 GHz >12.4 to 18 GHz
–60 to <–160.140.140.140.17
–16 to <+40.140.140.130.13
+4 to +200.140.150.150.14
Over 20 °C to 30 °C ambient temperature range:
Range (dBm)≤0.05 GHz >0.05 to 2 GHz >2 to 12.4 GHz >12.4 to 18 GHz
–60 to <–160.130.120.140.14
–16 to <+40.110.100.130.11
+4 to +200.110.100.100.11
Relative Power (dB)
3
≤0.05 GHz:
Over 0 °C to 50 °COver 20 °C to 30 °C
Range (dBm)+4 to +20–16 to <+4–60 to <–16+4 to +20–16 to <+4–60 to <–16
–60 to <–160.140.130.030.080.090.03
–16 to <+40.140.040.130.060.030.09
+4 to +200.050.140.140.050.060.08
>0.05 GHz to 2 GHz:
Over 0 °C to 50 °COver 20 °C to 30 °C
Range (dBm)+4 to +20–16 to <+4–60 to <–16+4 to +20–16 to <+4–60 to <–16
–60 to <–160.160.160.030.110.120.03
–16 to <+40.170.050.160.090.040.12
+4 to +200.060.170.160.060.090.11
>2 GHz to 12.4 GHz:
Over 0 °C to 50 °COver 20 °C to 30 °C
Range (dBm)+4 to +20–16 to <+4–60 to <–16+4 to +20–16 to <+4–60 to <–16
–60 to <–160.160.160.040.120.140.04
–16 to <+40.170.050.160.100.040.14
+4 to +200.060.170.160.070.100.12
>12.4 GHz to 18 GHz:
Over 0 °C to 50 °COver 20 °C to 30 °C
Range (dBm)+4 to +20–16 to <+4–60 to <–16+4 to +20–16 to <+4–60 to <–16
–60 to <–160.140.150.040.120.140.04
–16 to <+40.110.060.150.100.050.14
+4 to +200.060.110.140.060.100.12
4
Zero
SetDrift
Range (dBm)WattsdBmWattsdBm
–60 to <–163.32E-10–64.783.44E-10–64.64
–16 to <+43.87E-08–44.124.29E-08–43.67
+4 to +201.07E-06–29.709.96E-07–30.02
5
Noise
Range (dBm)Watts
–60 to <–161.23E-10
–16 to <+41.01E-08
+4 to +208.56E-07
Effect of Digital Modulation
6
Range (dBm)dB
–60 to <–16–0.048 to 0.080
–16 to <+4–0.038 to 0.088
+4 to +20–0.055 to 0.067
3. Power uncertainty expressed with two sigma confidence level for CW measurement after zero operation Includes calibration factor and linearity over temperature uncertainties,
but not the effects of mismatch, zero set and drift, or noise.
4. Zero uncertainty expressed with three sigma confi dence level. One hour warm-up followed by a Zero operation. Measured with 256 averages and 40 ms aperture and with the
temperature kept within ±1 °C..
Zero Set: Average of the reported power over one hour.
Zero Drift: Two sigma value of the reported power over one hour.
5. Two sigma noise at 10.2 seconds of integration time (integration time = aperture time x averaging number). Effect of noise can be reduced by increasing the number of averages
and/or increasing the aperture time. Noise is inversely proportional to the square root of number of ADC samples used per measurement; the number of ADC samples per
measurement is the product of the sample rate, aperture time, and number of averages used. Noise uncertainty is expressed with three sigma confidence level.
6. Measurement error with reference to a CW signal of equal power and frequency between 20 °C to 30 °C in Normal mode and average power ≤+20 dBm. In general, the error
caused by modulation depends on the peak to average power ratio and RF bandwidth of the signal.
MA24208A/MA24218A TDSPN: 11410-00841 Rev. D5 of 9
MA24208A/MA24218ASpecifications
PowerXpert™
PC Requirements
(version 3.0 or greater)
Processor and RAMMinimum: Equivalent to Intel® Pentium® III with 1 GB RAM or Intel® Pentium® IV with 512 MB RAM
Operating SystemMicrosoft® Windows® 8, Windows® 7, and Windows® XP
Hard-Disk Free Space100 MB minimum
Display Resolution1024 × 768 minimum
System
MeasurandAverage power
Measurement Resolution0.01 dB max via PowerXpert™, 0.001 dB max via remote command
Offset Correction
AveragingAuto, Manual
Number of Averages (Manual)
Auto Average Resolution
Auto Average SourceTimeslot Number: 1 to 128
Continuous Average Mode
Duty Cycle Correction0.01 % to 100 %
Aperture Time0.01 ms to 1 s
Measurement Time
Buffer Size8192
Scope Mode
Capture Time0.01 ms to 1 s
Data Points1 to 16,384
Resolution0.01 ms max
Measurement Time
Timeslot Mode
Maximum Number of Slots128
Maximum Capture Time1000 ms (slot width x number of slots)
Measurement Time
Slot Width0.01 ms to 100 ms
Resolution0.01 ms max via remote command
Exclusion PeriodsStart Exclusion: 0 ms to 10 ms
List Mode
Number of Measurements1 to 1000
Input ParametersFrequency (GHz), aperture time (ms), averages
Recommended: Equivalent to Intel® Pentium® IV with 1 GB RAM
InterfaceUSB 2.0 high speed
7
–100 dB to +150 dB
TypeMoving, Repeat
8
1 to 65,536
9
1 dB, 0.1 dB, 0.01 dB
Scope Data Point Number: 1 to 16,384
10
N x (aperture time x Ct) + 0.375 ms + T
Continuous: >1,600 readings/s (minimum aperture, one average)
Buffered: >11,000 readings/s (minimum aperture, one average)
11
N x (capture time x Ct) + (Pn x 0.042 ms) + T
0.01 ms max via PowerXpert™
End Exclusion: 0 ms to 10 ms
12
N x (slot width x number of slots x Ct) + (Pn x 0.064 ms) + T
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7. Offset correction feature is available only through the PowerXpert application. There is no remote command for it in the sensor firmware.
8. Maximum number of averages allowed in Continuous Average mode and Timeslot mode is 65,536. In Scope mode, the maximum number of averages is equal to 16,777,216
divided by the number of data points.
9. Averaging resolution of 0.001 dB is not available with the PowerXpert application. It is defined as the place after the decimal to which the reading becomes stable.
For example, if 0.01 is selected, then the reading will typically be stable within ±0.01 dB. Please refer to the remote operation chapter in the user guide for information regarding
access to this feature.
10. Speed is defined as the data throughput at the “A” end of the USB A to Micro-B Cable (p/n 2000-2010-R), where:
Number of Repeat Averages = N (N = 1 for moving average mode)
Capture Time Coefficient = Ct = 1.62
Command Processing Time = T
Speed may vary depending on the speed of and load on the CPU controlling the sensor. Specified results obtained with Intel® Core™ i5-3550 CPU running at 3.30 GHz
11. Speed is defined as the data throughput at the “A” end of the USB A to Micro-B Cable (p/n 2000-2010-R), where:
Number of Repeat Averages = N (N = 1 for moving average mode)
Capture Time Coefficient = Ct = 1.645
Number of Points = Pn
Command Processing Time = T
12. Speed is defined as the data throughput at the “A” end of the USB A to Micro-B Cable (p/n 2000-2010-R), where:
Number of Repeat Averages = N (N = 1 for moving average mode)
Capture Time Coefficient = Ct = 1.625
Number of Points = Pn
Command Processing Time = T
com
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= 0.2 ms
= 0.24 ms
= 0.29 ms
6 of 9PN: 11410-00841 Rev. DMA24208A/MA24218A TDS
SpecificationsMA24208A/MA24218A
External
Trigger Input
(TTL/CMOS)
N Type connector designed for use with a torque wrench
ensuring repeatable connections
Trigger
Output
USB Micro-B port for connectivity to host
(PC or Anritsu handheld instrument)
Color LED
reports functional
status of the sensor
General
RF ConnectorN male
Interface to HostUSB 2.0 high speed
Current Consumption410 mA to 450 mA characteristic (20 ºC to 30 ºC)
Size110 mm x 46 mm x 25.6 mm, excluding N connector and silicone protective covering
Weight397 g (0.88 lb)
Warranty1 year
Operational Requirements
Operating Temperature Range0 ºC to 50 ºC
Storage Temperature Range–40 ºC to +71 ºC
Relative Humidity (non-condensing)45 % at 50 ºC
Altitude4600 m operational max
Shock30 g half-sine, 11 ms duration
VibrationSinusoidal: 5 Hz to 55 Hz, 3 g max
Regulatory Compliance
European UnionEMC 2014/30/EU, EN 61326:2013, CISPR 11/EN 55011, IEC/EN 61000-4-2/3/4/5/6/8/11
Australia and New ZealandRCM AS/NZS 4417:2012
South KoreaKCC-REM-A21-0004
Tests were performed per MIL-PRF-28800F (Class 3).
75 % at 40 ºC
95 % at 30 ºC
Random: 10 Hz to 500 Hz, 2.34 g rms
Power Spectral Density: 0.01 g
Low Voltage Directive 2014/35/EU
Safety EN 61010-1:2010
RoHS Directive 2011/65/EU
2
/Hz
MA24208A/MA24218A TDSPN: 11410-00841 Rev. D7 of 9
MA24208A/MA24218ASpecifications
Ordering Information
Available Models
MA24208A8 GHz USB Universal Power Sensor
MA24218A18 GHz USB Universal Power Sensor
Included Accessories
10585-00021Quick Start Guide
2000-1605-R1.5 m BNC(m) to MCX(m) cable
2000-2010-R1.83 m USB A to Micro-B cable
Available Options
MA24208A-097Option 97: ISO/IEC 17025 and ANSI/NCSL Z540-1 or ANSI/NCSLI Z540.3
MA24208A-098Option 98: Standard calibration ISO/IEC 17025 and ANSI/NCSL Z540-1
MA24208A-099Option 99: Premium calibration ISO/IEC 17025 and ANSI/NCSL Z540-1
MA24218A-097Option 97: ISO/IEC 17025 and ANSI/NCSL Z540-1 or ANSI/NCSLI Z540.3
MA24218A-098Option 98: Standard calibration ISO/IEC 17025 and ANSI/NCSL Z540-1
MA24218A-099Option 99: Premium calibration ISO/IEC 17025 and ANSI/NCSL Z540-1
Optional Accessories
(includes test report, uncertainty data, and accreditation symbol)
(includes test report and uncertainty data)
(includes test report, uncertainty data, and accreditation symbol)
(includes test report and uncertainty data)
Calibrated Torque Wrenches
Power Attenuators
3-1010-123DC to 8.5 GHz, 30 dB, 50 W, 50 Ω, N(m) to N(f)
3-1010-124DC to 8.5 GHz, 40 dB, 100 W, 50 Ω, N(m) to N(f)
3-1010-122DC to 12.4 GHz, 20 dB, 5 W, 50 Ω, N(m) to N(f)
42N50-20DC to 18 GHz, 20 dB, 5 W, 50 Ω, N(m) to N(f)
42N50A-30DC to 18 GHz, 30 dB, 50 W, 50 Ω, N(m) to N(f)
41KB-3DC to 26.5 GHz, 3 dB, 50 Ω, K(m) to K(f)
41KB-6DC to 26.5 GHz, 6 dB, 50 Ω, K(m) to K(f)
41KB-10DC to 26.5 GHz, 10 dB, 50 Ω, K(m) to K(f)
41KB-20DC to 26.5 GHz, 20 dB, 50 Ω, K(m) to K(f)
43KB-3DC to 26.5 GHz, 3 dB, 50 Ω, K(m) to K(f)
43KB-6DC to 26.5 GHz, 6 dB, 50 Ω, K(m) to K(f)
43KB-10DC to 26.5 GHz, 10 dB, 50 Ω, K(m) to K(f)
43KB-20DC to 26.5 GHz, 20 dB, 50 Ω, K(m) to K(f)
Precision Coaxial Adapters
510-90-RDC to 3.3 GHz, N(m) to 7/16 DIN(f)
510-91-RDC to 3.3 GHz, N(f) to 7/16 DIN(f)
510-92-RDC to 3.3 GHz, N(m) to 7/16 DIN(m)
510-93-RDC to 3.3 GHz, N(f) to 7/16 DIN(m)
33NFNF50BDC to 18 GHz, N(f) to N(f)
33NNF50BDC to 18 GHz, N(m) to N(f)
33NN50BDC to 18 GHz, N(m) to N(m)
34AN50DC to 18 GHz, GPC-7 to N(m)
34ANF50DC to 18 GHz, GPC-7 to N(f)
34NFK50DC to 18 GHz, N(f) to K(m)
34NFKF50DC to 18 GHz, N(m) to K(f)
34NK50DC to 18 GHz, N(m) to K(m)
34NKF50DC to 18 GHz, N(m) to K(f)
1091-26-RDC to 18 GHz, N(m) to SMA(m)
1091-27-RDC to 18 GHz, N(m) to SMA(f)
1091-80-RDC to 18 GHz, N(f) to SMA(m)
1091-81-RDC to 18 GHz, N(f) to SMA(f)
01-200Calibrated torque wrench for N connector
01-204Calibrated torque wrench for K and V connectors
8 of 9PN: 11410-00841 Rev. DMA24208A/MA24218A TDS
Training at Anritsu
Anritsu has designed courses to help you stay up to date with technologies important to your job. For available training
courses, visit:
www.anritsu.com/training
• United States
Anritsu Americas Sales Company
450 Century Parkway, Suite 190
Allen, TX 75013, U.S.A.
Phone: +1-800-Anritsu (1-800-267-4878)
Room 2701-2705, Tower A
New Caohejing International Business Center
No. 391 Gui Ping Road
Shanghai 200233, P.R. China
Phone: +86-21-6237-0898
Fax: +86-21-6237-0899
• P.R. China (Hong Kong)
Anritsu Company Ltd.
Unit 1006-7, 10/F.
Greenfield Tower, Concordia Plaza
No. 1 Science Museum Road
Tsim Sha Tsui East, Kowloon
Hong Kong, P.R. China
Phone: +852-2301-4980
Fax: +852-2301-3545
• Japan
Anritsu Corporation
8-5, Tamura-cho, Atsugi-shi, Kanagawa, 243-0016
Japan
Phone: +81-46-296-6509
Fax: +81-46-225-8352
• South Korea
Anritsu Corporation, Ltd.
5FL, 235 Pangyoyeok-ro
Bundang-gu, Seongnam-si
Gyeonggi-do 13494, South Korea
Phone: +82-31-696-7750
Fax: +82-31-696-7751
• Australia
Anritsu Pty. Ltd.
Unit 20, 21-35 Ricketts Road
Mount Waverley, Victoria 3149, Australia
Phone: +61-3-9558-8177
Fax: +61-3-9558-8255