emctest produces gtem cells
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For Radiated Immunity & Emissions Testing


  • Frequency Range: 100 kHz to 20 GHz
  • Max power-input: 1000 W
  • Input connector type N (Female)
  • Nominal impendance: 50 Ohm
  • Typical VSWR: 1:1,2
  • Power line filter: 2x 230V AC/DC 20A
  • RF coax Feed-thru(s): 1x SMA + 1x N (Females)
  • Other Feed-thru(s): 1x Fiber optical cable
  • Dimensions: 495(L) x 280(W) x 220(H) cm
  • Septum Height: 1150 mm
  • Door Size: 85(W) x 72(H) cm
  • Uniform Area Size ±3dB: 41(L) x 41(W) x 37(H) cm
  • EUT Max Size: 82(L) x 82(W) x 74(H) cm
  • Weight: 900 Kg
  • Standard configuration:
    INOX; PLF-16S; FOPT-3; FT-N; FT-SMA;

    Reference Standards: IEC/EN 61000-4-3 - IEC/EN 61000-4-20

    Emctest Technologies - Via Marecchiese 273 - 47922 Rimini - ITALY
    Web: www.emctest.it - www.buygtem.com / Tel.: +39 0541728562



    The GTEM cell is a TEM waveguide with the upper frequency limit extended to the GHz range.
    It is under consideration as an alternative measurement facility for both radiated emission and immunity measurements.
    It is included in the recently published standard IEC 61000-4-20 “Emission and Immunity Testing in Transverse Electromagnetic (TEM) Waveguides”.

    Theory of operations

    GTEM-cells (Giga-hertz Transversal Electro-Magnetic cells) are waveguide structures intended for electromagnetic compatibility measurements, as well as biomedical applications.
    The electromagnetic field distribution inside the cell is in TEM mode. With TEM mode propagation, there is no component of electric and magnetic field in the direction of propagation of electromagnetic wave.
    Therefore the field components are strictly perpendicular. Assuming the field distribution ideal TEM below the cut-off frequency of the cell (before the introduction of higher order modes), the electromagnetic field distribution can be considered static.

    Key Features:

  • Engineered and completely manufactured in Italy.
  • Ruggedized fully INOX steel construction
  • Unique compact design.
  • Optimized for EMI and EMC.
  • Strong fields achieved with low input power
  • Broadband up to 20Ghz
  • High effective shielding
  • Fully customizable feed thrus and filters
  • Excellent quality at Low cost
  • Applications:

  • EMI and EMS devices
  • Radiation and susceptibility test
  • Specifically designed for telecom application
  • Biomedical and dosimetrical applications
  • Isotropic sensors calibration
  • Receiver sensitivity test

    Available options:

  • Option
  • It may be possible some options are not listed below. We suggest you to contact us directly if you need any custom option not specified here.
  • INOX
    INOX rugged construction
  • EIA 7/8
    EIA 7/8" Input Connector (max. 3GHz)
  • EIA 7/16
    EIA 7/16" Input Connector (max. 3GHz)
  • ESI-250
    Electrical safety interlock
  • FOPT-1
    Channel for fibre optic leads (1 fiber pair)
  • FOPT-3
    Channel for fibre optic leads (3 fiber pairs)
  • FPT-DB9
    Filtered 9-poles pass-thru RS-232 (DB9)
  • FPT-DB25
    Filtered 25-poles pass-thru RS-232 (DB25)
  • FPT-DC10
    Filtered 10A 1000V DC banana socket pass-thru
  • FT-BNC
    RF feed-thru BNC-BNC Female panel mount type connector
  • FT-N
    RF feed-thru N-N Female panel mount type connector
    RF feed-thru BNC-SMA Female panel mount type connector
  • FT-RJ45
    Shielded RJ45 (RJ11) feed-thru female-female connector
  • FT-SMA
    RF feed-thru SMA-SMA Female panel mount type connector
  • HCOMB-10
    Honey comb 10x10 cm air intake/outtake
  • HPTER-250
    Hi Power terminations 500W continuous power up to 3GHz
  • ILED-250
    Indoor LED lighting 50W shielded lamp

  • Option
  • Shielded via multi mode Fiber Optic camera system with full HD capability and autofocus
  • PDTP
    Technical panel pre-drilled for options with EMC gaskets and inox bolts
  • PLF-20S
    Single Phase AC Power Line Filter 2x 20A Phase+N+Ground
  • PLF-40S
    Single Phase AC Power Line Filter 2x 40A Phase+N+Ground
  • PLF-60S
    Single Phase AC Power Line Filter 2x 60A Phase+N+Ground
  • PLF-20T
    Tri Phase AC Power Line Filter 4x 20A 3Ph+N+Ground
  • PLF-32T
    Tri Phase AC Power Line Filter 4x 32A 3Ph+N+Ground
  • PLF-64T
    Tri Phase AC Power Line Filter 4x 64A 3Ph+N+Ground
  • DCF-120
    Single pole Filtered AC/DC Feedthru 120A 1700VDC/250VAC
  • PWS
    Additional Power Socket for EUT
  • SAE
    Door for tests acc. to SAE J1752/3 – Integrated Cir
  • SHW-250
    Only for GTEM 750 / 1000 / 1250 / 1500 / 1750 / 2000 : Shielded Window in door for EMC GTEM 250
  • VPOS
    GTEM Vertical positioning – Plastic table over absorbers – 90° turned door turn of door position, plastic table over pyramids (Only for GTEM 250 / 500)
    Shielded IP camera system

    Gallery details:

    emc gtem 1000 - installed and ready to be usedemc gtem 1000 - high quality standard detailsemc gtem 1000 - opened door detailsemc gtem 1000 - with opened door and details of anechoic absorbersemc gtem 1000 - example of a customized technical panelemc gtem 1000 - customized technical panel and honeycomb option installed