5m semi anechoic chamber

The main purpose of a 5m semi anechoic chamber is to perform full compliance measurements of radiated emission and immunity at 5m or 3m test distance. The combination of the pan-type 2mm galvanized panel system, parallel closing RF shielded doors and polystyrene hybrid absorbers on the walls, floor and ceiling creates a high performance controlled electromagnetic environment that complies with international immunity and emission test standards.

Features of a 5m semi anechoic chamber:
Full compliance (5m) emission test site for frequency range of 30MHz to 18GHz as per CISPR 16-1-4 (2010) +annex A1 (2012) (free space testing)
Full compliance (3m) emission test site for frequency range of 30MHz to 18GHz as per CISPR 16-1-4 (2010) +annex A1 (2012) (free space testing)
Full compliance immunity test site for frequency range of 80MHz to 6GHz as per IEC/EN 61000-4-3
Shielding effectiveness according to EN 50147-1 (>80dB at 10kHz)

      Acceptance standards for a 5m semi anechoic chamber:
CISPR 16-1-4
IEC/EN 61000-4-3
EN 50147-1
ANSI C63.4
FCC part15
CISPR 25(special customization)
MIL-STD-461(special customization)

Product standards for a 5m semi anechoic chamber:
CISPR 32
CISPR 35
CISPR 11
CISPR 14
CISPR 15
CISPR 12
GB/T18387

      Typical performance of a 5m semi anechoic chamber:
FSNSA: +/-4dB at 5m test distance; +/-3.5dB at 3m test distance
sVSWR: ≤ 5.5dB at 3m test distance
FU: 75% of 16 points ≤ 6dB at 3m test distance & 1.5 x 1.5m test window (0.8m above floor level) 

      Typical specifications for a 5m semi anechoic chamber:

In addition to the typical specifications of 5m semi anechoic chamber, RFT can also customize the anechoic chamber configuration for customers according to the size of quiet zone and the type of test standard.

 5m semi anechoic chamber option

After special design of anechoic chamber, CISPR25 test table and matching grounding system are installed, CISPR25 emission and immunity test are carried out, and the original performance of anechoic chamber would not be affected.