The system features a highly modular hardware and software concept. Customized systems can be configured from a variety of instruments. The system is a complete package of hardware and userfriendly software as well as system services so that the user will be familiar with the system within the shortest possible time.
R&S®TS9975 EMI Test System Family
EMI measurements in line with wireless, commercial, military and automotive standards
- Overview
- Applications
Supported EMI standards
| Application | Standards (Examples) EMI |
| Industrial and Household Products (commercial) | CISPR 11/EN 55011 CISPR 14-1/EN 55014-1 ANSI-C 63.4 FCC 15, 18 |
| Information Technology (commercial) | CISPR 22/EN 55022 ANSI-C 63.4 FCC 15, 18 |
| Medical Devices (commercial) | EN 60601-1-2 CISPR 11/EN 55011 |
| Wireless Devices (commercial) | ETSI EN 301489-x 3GPP TS 51.010 ETSI EN 301908-1 ETSI EN 300328-1 FCC part 15 |
| Automotive | 2004/104/EC CISPR 12, SAEJ 551/2 CISPR 25, SAEJ 1113/41 |
| Military / Avionics | MIL-STD 461E, CE101, CE102, CE106, RE101, RE102, RE103 RTCA/DO-160 VG95370-95377 DEF-STAN 49-41 GAM-EG 13 |
| Consumer Products Radio/TV Receivers (commercial) | CISPR 13/EN 55013 |
Commercial, military and automotive tests
- System Configuration
- Anechoic chamber
Radiated emissions and susceptibility are measured in an anechoic chamber. This requires a remote-controlled turntable and an automatic antenna mast with a control unit. These optional components can be supplied with the system and controlled by the system software. For development and quality assurance purposes, smaller test cells that easily fit into the lab are available.
- Hardware
A process controller (PC) controls the complete measurement system via its IEC/IEEE bus interface. Depending on the frequency range to be covered and the special test requirements, measurements are carried out by one or several test receivers.
- Test receiver
The test receiver forms the core of the system. It evaluates and displays emissions in line with the relevant standards. If precompliance measurements are sufficient for EMC testing, a spectrum analyzer can be used instead of the test receiver.
The upper frequency limit of the test system can be 3/7/18/26 GHz or 40 GHz. This depends on the type of DUT and the applied standard.
- Test antennas
Suitable test antennas (usually log-periodic or horn antennas) and artificial mains networks are used for picking up emissions.
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Hardware expansions
- R&S®ESH2-Z5 and R&S®ENV216 artificial mains networks
- R&S®TS-RSP system control unit for switching antennas and transducers
Rohde & Schwarz test antennas (e.g. R&S®HL562)
- Software
The R&S®EMC32 supports fully automatic measurements for certification as well as interactive measurements during development and device modification.
Wireless tests
Standards
The system can cover all requirements of the following wireless standards
- AMPS
- CDMA, TDMA
- GSM450/850/900/1800/1900
- GPRS, EDGE
- UMTS
- Bluetooth®2.0 + EDR
- WLAN 802.11a, b, g
- WiMAX 802.16
Configurations for other standards are available on request. Customer-specific adaptations to other standards or different regulations can be integrated into R&S®TS9975 test system without any problems.
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- R&S®TS9975 wireless block diagram
System Configuration
The system features a highly modular hardware and software concept. Customized systems can be configured from a variety of instruments. The system is a complete package of hardware and userfriendly software as well as system services so that the user will be familiar with the system within the shortest possible time.
The main difference between spurious emission measurements and EMI measurements is that bandwidths matching the useful signal instead of the typical EMC bandwidths (e.g. 200 Hz, 9 kHz, 120 kHz) have to be set on the receiver.
It should also be noted that EMC bandwidths are refered to the 6 dB points of the IF filters, whereas the bandwidths for spurious emission measurements are refered to the 3 dB points. In spurious emission measurements, the peak detector takes the place of the quasi-peak detector.
All these differences call for a test receiver with spectrum analyzer functionality rather than a pure test receiver. In addition to EMI and spurious emission, the R&S®TS9975 can also measure the wanted signal, for example the equivalent isotropic radiated power (EIRP) of radio sets and modules with the integrated antenna.
- Anechoic chamber
Radiated emissions and susceptibility are measured in an anechoic chamber. This requires a remote-controlled turntable and an automatic antenna mast with a control unit. These optional components can be supplied with the system and controlled by the system software. For development and quality assurance purposes, smaller test cells that easily fit into the lab are available, especially for spurious emission measurements.
- Hardware
A process controller (PC) controls the complete measurement system via its IEC/IEEE bus interface. Depending on the frequency range to be covered and the special test requirements, measurements are carried out by one or several test receivers.
- Test receiver
The test receiver forms the core of the system. It evaluates and displays emissions in line with the relevant standards. In addition, it offers spectrum analyzer functionality for spurious emission measurements. If only spurious emissions are to be measured and if precompliance measurements are sufficient for EMC testing, a spectrum analyzer can be used instead of the test receiver.
The upper frequency limit of the test system can be 3/7/18/26 GHz or 40 GHz. This depends on the type of DUT and the applied standard.
- Test antennas
Suitable test antennas (usually log-periodic or horn antennas) and artificial mains networks are used for picking up emissions.
- Filter unit
To measure spurious emissions (for example of mobile phones) in line with standards at a sufficiently wide dynamic range while the DUT is transmitting, the useful signals emitted by the DUT must be suppressed at the receiver input by means of bandstop or highpass filters.
To do this,
- Communications tester
A communication tester is integrated in the test system to switch and control the link to the DUT in a defined operating state.
- Software
The R&S®EMC32 supports fully automatic measurements for certification as well as interactive measurements during development and device modification.