• EFS 9221- 9 kHz - 1 GHz, Active Biconical Antenna
  • EFS 9221- 9 kHz - 1 GHz, Active Biconical Antenna
  • EFS 9221- 9 kHz - 1 GHz, Active Biconical Antenna

EFS 9221- 9 kHz - 1 GHz, Active Biconical Antenna

  • 9 kHz - 1 GHz
  • Antenna Factor: typ. 27-37 dB/m
  • Frequency Flatness: typ. < +/- 1.5 dB (50 kHz -1000 MHz)
  • Built-in rechargeable battery
  • Optional High Sensitivity Elements: BBUK 9139 M4

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Data Sheet

SPECIFICATIONS

 

EFS 9222- 9 kHz to 1 GHz, Active Biconical Antenna

The EFS 9221 is an active, symmetrical biconical antenna with a wide frequency range of more than 5 decades and a remarkable flat frequency response. In contrast to the frequently used unsymmetrical vertical monopole or rod antennas the EFS 9221 allows precise field strength measurements, thanks to a very high common mode rejection. Because of its small dimensions and a built in rechargeable NiMH battery the EFS 9221 is a perfect choice for portable applications. The sensitivity can be improved by approx. 11 dB using the optional BBUK 9139 M4 biconical elements. 

 

 

Specifications:

 

Frequency range:

9 kHz - 1 GHz

Connector: 

50 Ω N female

Mounting tube:

22 mm

Deviation from Omnidirectional Pattern:

typ. < 1.5 dB

Antenna Factor

Typ. 27-37 dB/m

Frequency Flatness:

typ. < +/- 1.5 dB (50 kHz -1000 MHz)

Field strength measuring range:

~ ≤ 135 dBµV/m (~ ≤ 6 V/m)

VSWR

typ. < 1.2 (f < 300 MHz)
typ. < 1.6 (f < 1 GHz) 

Minimum Field strength typ.:

12 µV/m (F=30 MHz, DF=9 kHz, Average)*

Option: Elements for High Sensitivity 

BBUK 9139 M4

Dimensions:

610 x 144 x 50 mm

Power Supply

7.2 V, 600 mAh NiMH battery

Option: Automatic Charger

ACS 110

Weight (incl. batteries):

780 g

 

 
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