TekBox TBLLA-2M Large Loop Antenna 9kHz - 30MHz
TekBox TBLLA-2M is a large loop antenna (LLA) with three orthogonal loops, as required by CISPR 16 -1-4 and CISPR 15 / EN 55015.
The LLA is used to measure the current induced by the magnetic field emitted by luminaries. Section 4.4 of EN 55015 specifies the test setup and measuring procedures.
The TBLLA-2M consists of three perpendicular 2-meter diameter loop antennas on three orthogonal planes (X/Y/Z), set on lightweight hollow WPC frames with a total height of 2.5m. The loops lowest point is 0.5m above ground. Each loop element receives magnetic field radiation normal to the containing plane and generates a voltage signal proportionate to the strength of the H -field radiation at the output port of the RF transducer connected to the loop.
The TBLLA-2M is equipped with three TekBox TBCCP1-2K70 coaxial RF current monitoring probes (transducers), with a flat transfer impedance of 0 dBΩ (1V/A) from 9 kHz to 30 MHz when loaded with 50Ω. The kit comprises all required coaxial cables, ferrite clamps, a manual RF coaxial switch to select loops, and a TBTP3 tripod with a plastic DUT support plate.
A calibration dipole with support structure is available as optional accessory.
Specifications:
- Type: Large Loop Antenna (triple loop)
- Frequency range: 9 kHz - 30 MHz
- Standards: CISPR 16-1-4, CISPR 15
- Loops: 3 perpendicular loops with 2m diameter
- Loop construction: RG223U sections with over-molded slits inside PEX tube
- RF transducer transfer impedance: typical 0 dBΩ ; 1V/A @ 9kHz to 30 MHz
- RF transducer output connector: N-female, 50 Ω
- Antenna validation factor: within ±2 dB compared to the theoretical validation factor for 2m diameter LLA given in CISPR 16-1-4
- Effective antenna correction factor: 0 dB
- CM resistance of the ferrite absorbers: > 200 Ω @ 10 MHz
- Mechanical Dimensions: L x W x H: 2062 mm x 2062 mm x 2547 mm (81.2" x 81.2" x 100")
- Weight: 25 kg (55.12 lbs)
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