Whole Vehicle Semi-Anechoic Chamber

The whole vehicle semi-anechoic chamber is one of the largest of its kind in India with a 11m turntable chassis dynamometer for testing of 4-wheleers upto Heavy commercial vehicles with an axle load of 9 Tons and components like electric/electronic sub-assemblies (ESA's).

Dimensions

:

30 m x 20 m x 10 m (L x W x H)

Frequency range

:

10 kHz to 40 GHz

Continuous RMS field strength

:

200V/m

Pulsed PEAK field strength

:

600V /m from 1.2 to 1.4 GHz and from 2.7 to

3.1 GHz (GMW3097 & ES-XW7T-1A278-AC stds)

Absorber coverage

:

ETS-Lindgren PS-1250 FerroSorb

 

 

 

 

 

 

Turntable:

 

 

Frequency range

:

10 kHz to 40 GHz

Continuous RMS field strength

:

200V/m

Pulsed PEAK field strength

:

600V /m from 1.2 to 1.4 GHz and from 2.7 to

3.1 GHz (GMW3097 & ES-XW7T-1A278-AC stds)

Absorber coverage

 

:

ETS-Lindgren PS-1250 FerroSorb

 

Tests Performed Includes:

  • Radiated Immunity Test
  • Radiated Emission Test

Radiated Immunity tests

Test standards

:

ECE 10R03, SAE J551/11, ISO 11451-2, etc...

Test standards

:

ECE 10R03, SAE J551/11, ISO 11451-2, etc...

Frequency Range

:

20MHz -18GHz

Test equipments

:

Signal generator (100KHz - 3GHz) with AM, FM & Phase modulation

Power amplifier (100KHz - 250MHz, 10KW)

Power amplifier (80 MHz -1000MHz, 2KW)

RF Power meter (Dual channel, 9KHz - 110GHz) Directional couplers, Switching unit

Vehicle network monitoring tools

 

 

Antennas OFF-board

  • E/H Field generator (100KHz - 30MHz)
  • 12m(L) x 6m(W) x 3-5m(H-adjustable)
  • Biconical antenna (20MHz - 100MHz)
  • V Log array antenna (80MHz - 1GHz)

 

 

Antennas On-Board

  • 1.8MHz - 30MHz mobile antennae
  • Rod antennas (20-30MHz & 30-54MHz)
  • Quarter wave rod antennas ranging from 60MHz to 970MHz
  • Wand antennae (800MHz - 2GHz)

 

Radiated Emission tests

Test standards

:

ECE 10R03, SAE J551/2, CISPR25, CISPR12, etc...

Frequency range

:

30MHz - 18GHz

Test equipments

:

EMI test receiver (20Hz - 40GHz)

Pre amplifier (9KHz to 1GHz)

Pre amplifier (0.1GHz to 18GHz)

Pre amplifier (18GHz to 26.5GHz)

Pre amplifier (26.5GHz to 40GHz)

 

 

Antennas Off-board

  • Biconical antennae (20MHz - 300MHz)
  • Broadband Log periodic antennae (300MHz - 3000MHz)
  • Horn antennae ( 1GHz - 18GHz) 

 

 

Antennas On-Board

  • 1.8MHz - 30MHz Mobile antennae
  • Wand antennae (800MHz - 2GHz)
  • Wideband monopole whip (30MHz - 512MHz)
  • Data communication system antennae (694MHz to 960MHz)