SAR Testing on cDASY6
NARDA SRM Calibration
RF Conformance Testing
EM Field Measurement
Spectrum Analyser Calibration
SAR testing of Smart Watch
The company operates a state of the art, high precision RF test and calibration laboratory (NABL accredited) in Delhi NCR, India. The laboratory has advanced test and calibration facilities for the following:
(i) SAR Testing and Measurements: Head and body SAR (Specific Absorption Rate) testing and measurements for mobile phones, PDA's, laptops and all other RF devices used in close proximity to human body. The lab is equipped with the latest cDASY6 SAR measurement system from SPEAG for compliance testing in accordance with all international (EU / US - FCC) standards. Additionally the cSAR3D vector array fast SAR system complements the cDASY6 for quick compliance, as well as pre-compliance testing.
(ii) EM Field Measurements: Precise measurement of electric / magnetic fields emanating from electronic / electrical equipment. The lab is equipped with the DASY52 NEO robot scanning system for precise measurement of EM fields from devices in accordance with the BS/EN 62311:2008 standard.
(iii) RF Conformance Testing: RF Measurements for GSM, (E) GPRS, WCDMA, HSPA, LTE (FDD / TDD) in accordance with the 3GPP Technical Specifications. The Lab is equipped with the CMW500 Base Station Simulator
to carry out RF measurements in accordance with the 3GPP technical specifications.
(iv) RF Calibration: Calibration of spectrum analyzers, multiband scanners / receivers, test mobiles phones for frequency (Hz), attenuation (dB) and power level (dBm).
(v) Electric Field Calibration: Calibration of EMF radiation hazard meters (NARDA /R&S/ Anritsu/ Keysight) for parameter electric field (V/m).
(vi) Safety Evaluation of Medical Implants. Close collaboration with the IT'IS Foundation, Switzerland in Safety Evaluation of Medical Implants.
BNNSPEAG laboratory follows a management system which is compliant with the ISO/IEC 17025 standard. BNNSPEAG is accredited with National Accreditation Board in India for Testing & Calibration Laboratories, India (NABL) for
(a) SAR testing of Mobile Phones
(b) Calibration of Radio Electric/ Electromagnetic Field Hazard Meters and Warning meters and Warning indicators.
Conformity Assesment Body (CAB)On 28 Feb 2017, BNNSpeag has been accorded Conformity Assesment Body (CAB) status by Telecom Engineering Centre (TEC) on behalf of DoT and Government of India. The laboratory is now authorised to perform testing and certification of telecom products with regards to SAR measurements/testing.
Mandatory Testing and Certification of Telecom Equipments (MTCTE)
In accordance with the reently amended Indian Telegraph Act amended vide Amendment Rules, 2017, It is mandatory that every telecom equipment must undergo prior mandatory testing and certification wef 01 Oct 2018. The testing is to be carried out as per TEC Essential Requirements (ER's) by Indian Accredited Labs and based upon their test reports, certificate shall be issued by TEC.
Further, a detailed procedure on certification of Telecom equipment is also under deliberation at TEC.
How is SAR Measured
The SAR is measured by placing it against a representation of a human head (a "SAR Phantom") in a talk position. The SAR value is then measured at the location that has the highest absorption rate in the entire head, which in the case of a mobile phone is often as close to the phone's antenna as possible. Measurements are made for different positions on both sides of the head and at different frequencies representing the frequency bands at which the device can transmit. Depending on the size and capabilities of the phone, additional testing may also be required to represent usage of the device while placed close to the user's body and/or extremities. Various governments have defined maximum SAR levels for RF energy emitted by mobile devices:
SAR Limits in India and Abroad
United States: FCC requires that phones have a SAR level at or below 1.6 watts per kilogram (W/kg) taken over the volume containing a mass of 1 gram of tissue that is absorbing the most signal.
European Union: CENELEC specify SAR limits within the EU, following IEC standards. For mobile phones, and other such hand-held devices, the SAR limit is 2 W/kg averaged over the 10 g of tissue absorbing the most signal (IEC 62209-1).
India: Switched from the EU limits to the US limits for mobile handsets in 2012. Unlike the US, India will not rely solely on SAR measurements provided by manufacturers; random compliance tests are done by a government-run Telecommunication Engineering Center (TEC) SAR Laboratory on handsets and 10% of towers.
Setting up SAR Laboratory in India
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