Purpose
The 3mSAC is developed with the focus on compliance testing emission and susceptibility at 3 m test distance. The complete system is designed for multi purpose use. International, US, European and various national standards are covered. The products that is able to be tested range from telecom equipment, household equipment, automotive components, Industrial Scientific and Medical equipment (ISM) as well as Information Technology Equipment (ITE). Listing of the 3mSAC as FCC facility, getting European accreditation of VCCI recognition is equally possible. The 3mSAC combines full conformity with standards, with an enhanced frequency range up to 18 GHz. Consisting of a fully modular system for shielding and absorbers, the installed chamber can be set up stepwise and adapted to upcoming normative.
Emission Measurements
Radiated emission measurements for compliance testing, development and quality control at 3 m distance are perfectly covered by the 3mSAC. The 3mSAC complies with ANSI C63.4 and CISPR 16-1-4 for a 2.0 m quiet zone diameter. In additional, the 3mSAC performs perfectly up to 18 GHz.
Immunity Testing
The 3mSAC features superior performance for radiated immunity testing. The accuracy achieved according IEC 1000-4-3 and EN 61000-4-3 in a 1.5 x 1.5 m plane at 3 m test distance fully complies with the a.m. standards. In additional, the 3mSAC performs perfectly up to 18 GHz. Radiation
Radiated Emission
The performance achieved according to ANSI C63.4 in a quiet zone diameter of 2 m at 3 m test distance is better than +/- 3 dB and the guaranteed values for site VSWR is 6.0 dB or better.
Radiated Immunity
The accuracy achieved according IEC 1000-4-3 and EN 61000-4-3 in a 1.5 x 1.5 m plane at 3 m test distance complies with the a.m. standards. As required 75% of the 16 points are within the 0 to +6 dB accuracy.
Technical Description
• Chamber shielding dimensions: 9.4 x 6.4 x 5.55 m (l x w x h) approx.
• Space requirement inside building: 10.4 x 7.4 x 6.5 m (l x w x h) approx., depending on support type.
• Usable space inside: 8.5 x 5.5 x 5.1m (l x w x h) approx.
• Fully galvanized modular shielding system made of 2 mm steel. Electromagnetic shielding performance of shielding compliant with EN 50147-1 and MIL STD 285:
| Frequency | Performance | Field Component |
| 10 kHz | 60 dB | H |
| 100 kHz | 80 dB | H |
| 1 MHz | 100 dB | H |
| 10 MHz | 100 dB | E |
| 100 MHz | 100 dB | E |
| 1 GHz | 100 dB | PW |
| 10 GHz | 100 dB | PW |
| 18 GHz | 100 dB | PW |
o Modular absorber lining on the walls and ceiling by hybrid absorbers. o Moveable floor absorbers approx. 2.4 x 3.0 m area for immunity testing. o One door of 1.2 x 2.05 m clear opening with mechanical actuation aid. The door is equipped with a switch to be connected to the interlock system for amplifier auto power off. o Seven honeycomb inserts for ventilation. Size 330 x 330 mm. o Four illumination spots of 750 W. o One three-phase power supply filter, 4 x 32A, max. 250V/440V 50 or 60 Hz for EUT and general power supply. o Electrical distribution, necessary breakers, four single phase outlets 230 W, one three phase outlet 400 V, one switch for illumination. o Two detachable access panels (AP) equipped with:
| AP I and AP II each | 2 N connectors 50 W, 3 FSMA connectors |
o Fully walkable false floor for EUT load up to 1000 kg/m² covered with high accuracy ground plane. The ground plane is modular assembled to gain access to the false floor area below. o Two connecting points are integrated in the floor:
| Connecting point I | 1 outlet 230 V, single phase, 10 A |
| Connecting point II | 3 outlets 230 V, single phase, 10 A
1 outlet 230/400 V, three phase, 16 A |
o Integrated in the floor are two cable ducts, which feed the necessary cables from the access panels (AP) to the connecting points (CP). o The facility has a host building attached support system. As option a self-supporting system is available. o The total weight is approx. 3000 kg depending on furnishing and selected options.