Edson Nunez

Experience

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  Centro Nacional de Desarrollo e Investigación en Telecomunicaciones

  Aug 2011 - Jul 2013

  Research Professional 4-I :• Development and improvement of test setup for measuring the SAR (Specific Absorption Rate) of cellphones, according to international standards (IEC 62209-1:2005, IEEE 1528:2003).• Development and improvement of test setup for the assessment of radiated electromagnetic compatibility (EMC) in several types of equipment covered by the application of the series of product's standards ETSI 301489-x, which utilize a basic test setup based on the international standard IEC61000-4-3:2010.• Development and improvement of test setup for the assessment of radio disturbances emitted by several types of equipment covered by the application of the series of product's standards ETSI 301489-x, using a basic test setup based on the international standard CISPR22: 2008. Show less Research Professional 1-IV / Engineer of standardization, regulations and quality assurance• Understanding of the conformity assessment systems, the regulatory requirements and approval process for the telecommunications equipment in CE, Chine, Japan, USA, Canada, Brazil, Mexico and Argentina.• Planification and cooperation with the regulators body in Venezuela (CONATEL,SENCAMER) for the development of a conformity assessment system applicable to the telecommunications equipment prior to the entry in the domestic market.• Participation in the national standardization committee related to the EMC tests for telecommunications equipments. Show less

  • EMC & SAR Engineer

    Jul 2012 - Jul 2013

  • Compliance Engineer

    Feb 2012 - Jun 2012

  • Internship

    Aug 2011 - Jan 2012
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  ART-Fi

  Feb 2014 - Aug 2014

  Internship

  Estimation of the measurement uncertainty in a radiofrequency system- Determination of the measurement model in different test and calibration methods.- Determination of the uncertainty budget in the measurements of power and S parameter.

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  ART-Fi

  Nov 2014 - Sept 2021

  Manager of RF laboratory:• Understanding of key technologies of 5G New Radio (described in 3GPP TR 21.915 Release 15, ETSI TR 138 913).• Continuous professional training of 3GPP releases on 5G NR.• Setting up of Anritsu MT8000A and MT8821C for 5G testing on NSA mode.• Manager in a team composed of RF engineers, RF technicians and apprentices. Manager of supply chain department:• Management of continuous improvement actions in the production process.• Efficient communication between the SALES team and customer for the realization of the delivery schedule.• Industrialization of production methods and procedures for the manufacture of new products.• Update of the definition files of products.Manager of customer service department:• Management of continuous improvement actions.• Measurement and control of process indicators.• Industrialisation de methods for performing support services.• Use of Agile methodology (Scrum approach) Show less Expert in RF and microwave metrology:• Understanding of the instrumentation used to measure electric field, dielectric parameters, RF power, S-parameters and SAR. As well as its traceability to international systems (SI) of units. • Understanding of the metrology and calibration method associated to different measurements: RF power, S parameter, complex permeability, etc. • Utilization of algorithmes stochastiques for variance reduction in Monte Carlo method.• Understanding of electromagnetics concepts and Power Spectral Density analysis method.• Preparation of proposals in the draft IEC 62209-3.• Preparation of simulation routines on EMPIRE XPU and Matlab script for analysis of uncertainty contributors.• Understanding of the measurement model and calibration method of the dosimetric E-field probes.• Understanding of the Vector-Probe array technology for the SAR measurement. Expert in the planning and setting up of tests:• Planning of intercomparison tests, preparation of statistical tests and validation of results.• Making of interlaboratory test for the SAR measurements with regulator bodies.• Utilisation of SARLAB software for carrying out the SAR measurements in the different positions demanded by the standard IEC62209-1/2.• Knowledge of the communication protocol used in 2G/3G/4G cellular technologies. • Setting up of Agilent 8960, CMU200 and CMW500 for the signaling test in GSM/GPSR/EDGE, WCDMA, LTE (TDD and FDD), etc.• Able to operate the DASY system and ARTMAN system. Show less

  • Manager of RF laboratory, supply chain & service center

    Dec 2019 - Sept 2021

  • SAR & RF metrologist / Field Application Engineer

    Aug 2017 - Nov 2019

  • RF Metrology and Test Engineer

    Nov 2014 - Jul 2017
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  MVG | Microwave Vision Group (SATIMO, ORBIT/FR, MVG-EMC)

  Sept 2021 - now

  RF/OTA System Engineer