(Archive) TBMA5 Active Monopole Antenna

The TBMA5 is EOL and has been replaced by the TBMA5B.

The TBMA5 is an active Monopole Antenna, expanding the Tekbox product range of affordable EMC pre-compliance test equipment.
The monopole antenna is designed for radiated emission measurements within the frequency range 9 kHz – 30 MHz, according to CISPR 16. The monopole antenna has a rod with a height of 104 cm and provides sufficient sensitivity to carry out radiated emission measurements as specified in CISPR 25 or MIL-STD-461G.

The TBMA5 consists of an impedance converter, a universal charger, a 10 mm diameter rod, a 60 cm x 60 cm ground plane and a standard 10pF calibration adapter. Furthermore, it includes the coaxial cable with ferrite and grounding equipment required under MIL-STD-461G. The impedance converter is equipped with a ¼” thread to attach it to conventional tripods.

SPECIFICATIONS

  • Characterized frequency range: 9 kHz to 30 MHz
  • Electric field antenna factor: +6 to +7 dB/m, typ.
  • Antenna factor variation: < ±0.8 dB, typ.
  • Dynamic Range: 118 dB @ 1MHz, 1 KHz bandwidth
  • Electric field, lower limit: 12 dBµV/m (4.0 µV/m) @ 1MHz, 1 KHz bandwidth
  • Electric field, upper limit: 130 dBµV/m (3.15 V/m) @ 1 dB compression
  • Output VSWR: 1.02 to 1.52 (average:1.06) :1
  • Output connector type: N female
  • Battery type: 6 x NiMH, AA (not included)
  • Battery life on average: 20 hours
  • Charger: Ansmann ACS310
  • Tripod mount: ¼” thread
  • Impedance converter dimensions: 185 x 210 x 65 mm, 1.5 kg
  • Carrying Case: Aluminum, 75 x 73 x 18 cm, 4 kg