Electrical and Electromagnetic Tests

EMI Testing / EMC Testing

Experienced EMI / EMC testing can reliably predict product performance in any electromagnetic environment. Testing can also determine the possibility of interference with other equipment, possibly degrading performance. Testing may be required to comply with regulations or for informational and product-improvement purposes.

Electromagnetic compatibility (EMC) testing requires appropriate electrical and structural design, equipment installation, wiring installation, and equipment qualification.
Electromagnetic Interference (EMI) testing is performed to ensure that your product will perform properly when subjected to the electromagnetic environment in which it is expected to operate.

Systems should be compatibility-tested to electromagnetic effects originating systemically such as electronic noise emissions, self-generated RF transmissions from antennas, and cross coupling of electrical currents. Also considered are externally occurring effects including lightning, electromagnetic pulse (EMP), electrostatic discharge and man-made RF transmissions.

DTB’s outstanding staff of experienced, iNARTE certified engineers and technicians, coupled with the depth and breadth of our EMI / EMC testing facilities, can help you bring your EMI / EMC testing project to completion at a minimum of time and expense.


TEMPEST Testing

TEMPEST is a National Security Agency specification and NATO certification referring to monitoring information systems through leaking emanations, including unintentional radio or electrical signals, sounds, and vibrations.

DTB is certified under the National Security Agency (NSA) TEMPEST Endorsement Program to provide TEMPEST testing services: https://www.nsa.gov/applications/ia/tempest/tempestPOCsCertified.cfm. DTB can perform testing in accordance with a variety of requirements including NSTISSAM and AMSG specifications.

With over 20 years of TEMPEST experience, we can provide a full range of support, from proposals, to control and test plans, laboratory and/or field testing, failure analysis and corrective action, and installation guidance.


DTB Electrical Test Facilities

  • Multiple EMI receivers for the range of 20 Hz to 40 GHz
  • Multiple Signal Sources for the range of DC to 40 GHz
  • Transient Test Systems for:
    • MIL-STD-461A, B, and C, Methods CS06 and RS02 (Two available).
    • MIL-STD-461F Method CS106 (Two available).
    • MIL-STD-461D, E and F, Method CS115 (Two available).
    • MIL-STD-461D, E and F, Method CS116 (Two available).
  • 50µsec pulse generator for CS06/RS02 type testing
  • MIL-STD-1399 Transient Generator
  • RTCA/DO-160 Section 17 Transient Generator (Three available).
  • ABD0100.1.8.1, AMD24C Voltage Spike Testing (Fully Compliant for A350, M400, A380, and RTCA/DO160, Section 17)
  • Several Custom Transient Generators for automotive testing.

ANECHOIC 1:

  • 20’ by 20’ by 12’ high
  • Pyramidal and Ferrite Tile absorber
  • 7’ by 3’ personnel door and 7’ high by 6’ wide large equipment door
  • Shielded Ancillary Enclosure measuring 8’ by 12’ by 8’ high. Ancillary chamber has DC, 60 Hz and 400 Hz power available.

ANECHOIC 2:

  • 30’ by 32’ by 12’ high
  • Pyramidal absorber
  • 8’ by 3’ personnel door and 8’ high by 10’ wide large equipment door
  • Shielded Ancillary Enclosure measuring 8’ by 16’ by 10’ high. Ancillary chamber has DC, 60 Hz and 400 Hz power available.

ANECHOIC 3:

  • 15’ by 18’ by 10’ high
  • Pyramidal and ferrite tile absorber
  • 8’ by 3’ personnel door and 8’ high by 6.5’ wide large equipment door
  • Shielded Ancillary Enclosure measuring 10’ by 11’ by 8’ high. Ancillary chamber has DC, 60 Hz and 400 Hz power available.

ANECHOIC 4:

  • 20’ by 32’ by 10’ high
  • Pyramidal and ferrite tile absorber
  • 8’ by 3’ personnel door and 8’ high by 6.5’ wide large equipment door
  • Shielded Ancillary Enclosure measuring 12’ by 16’ by 10’ high. Ancillary chamber has DC, 60 Hz and 400 Hz power available.

Power for Anechoic Chambers:

  • DC, 0 to 600V at up to 500A*
  • AC 115VAC, 60 Hz, 3 Phase, up to 200A*
  • 480VAC, 60 Hz, 3 Phase, up to 200A*
  • 115VAC, 400 Hz, 3 Phase, up to 150A*
  • Variable Frequency and Voltage from Solid State Programmable AC Power Sources.
  • 16 to 819 Hz, 0 to 400V, Single phase at up to 375A or three phase at up to 125A per Phase and 47 to 500 Hz 0 to 120V at up to 175A/Phase*

Reverberation Chamber:

  • Chamber used for Mode Tuned testing for automotive, military and commercial aircraft testing.
  • Chamber also used for shielding effectiveness testing.
  • Chamber calibrated per EN 61000-4-21 for Mode Tuned testing.
  • Large Z fold tuner per EN 61000-4-21
  • Computer controlled
  • 16’ by 12’ by 10’ high 7’ by 4’ door

Power:

  • DC, 0 to 600V at up to 500A*
  • AC 115VAC, 60 Hz, 3 Phase, up to 200A*
  • 115VAC, 400 Hz, 3 Phase, up to 150A*
  • Variable Frequency and Voltage from Solid State Programmable AC Power Sources.
  • 16 to 819 Hz, 0 to400V, Single phase at up to 375A or three phase at up to 125A per Phase and 47 to 500 Hz 0 to 120V at up to 175A/Phase*

This chamber allows high speed testing to Commercial Radiated Emissions and Immunity Standards in an EMI free ambient environment. The chamber is also used by several automotive standards. Chamber specifications are as follows:

  • 1.75 Meter Septum Height.
  • Chamber overall size is over 26’ long by 13’ wide by 11’ high.
  • Large access door is 1 meter wide by 1.3 meter high to allow personnel to enter cell and work on test item.
  • Small access door near tip of cell.
  • Maximum test item size is 1.5 meter long by 1.5 meter wide by 1.32 meter high.
  • Uniform field area (±3 dB) is 1.15 meter long by 1.15 meter wide by 0.6 meter high.
  • Non-conductive remote controlled manipulator for positioning test item in the required 3 axis.
  • 1 kW power maximum RF power.
  • Radiated Immunity Field Strength in excess of 200 V/m.
  • Frequency range DC to 20 GHz.
  • For Radiated Emissions from 30 MHz to 6 GHz correlatable to OATS at 3, 10, or 30 Meters.

3 and 10 Meter Open Area Test Site (OATS), certified accredited by A2LA.

  • FCC Certified site.
  • 6 foot diameter flush mounted turntable, rated for over 3000 lbs.
  • Climate controlled site, covered with a 24’ wide by 48’ long by 20’ high RF transparent fiberglass structure that allows testing in all weather conditions.
  • Climate controlled control room located below ground plane.