EMC Monopole Antennas

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ETS-Lindgren 3301C Active Monopole Antenna, 30 Hz - 50 MHz View larger

ETS-Lindgren 3301C Active Monopole Antenna, 30 Hz - 50 MHz

Used

  • 30 Hz to 50 MHz Frequency Range
  • Individually Calibrated 
  • MIL-STD 461G Compliant 
  • 30 Hours of Continuous Operation in a Single Charge

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Specifications

Frequency Range 30 Hz to 50 MHz
Standards Met Mil-STD-461
Application/Test Type Active, general-purpose, receive-only antenna for FCC, MIL-STD and TEMPEST tests
Antennas
Monopole Antennas
Parameter Value
Antenna Factor (1 Meter) 0 dB/m
Impedance 50 Ohms
Connector BNC (female)
Mounting Base 1/4" 20 thread
Aperture -
Dimensions Ground Plane Dimensions: 18 in. X 18 in. (45.7 cm x 45.7 cm) Optional 24" (60cm) is available Rod Length: 8.5 in. - 43 in. (21.6 cm x 109.2 cm)
Weight 4.7 lb.'s (2.13 kg)

Test Equipment Description

ETS-Lindgren's 3301C Active Monopole Antenna is designed to provide reception of an electric field throughout its frequency range, in a single band, without tuning or bandswitching. ​The 3301C Active Monopole Antenna factor 3 dB roll-off points are at 170 Hz and 30 MHz. Between 250 Hz and 20 MHz, the antenna factor is flat within +/- 1 dB. To prevent saturation by the low frequency signals, the lower 3 dB point is switch-selectable at 170 Hz, 1.9 kHz or 22 kHz. The 3301C is able to sense fields of +7 dB (uV/m) at 1 MHz with a 1 kHz bandwidth. Saturation will not occur below a field strength of 0.8 V/m, resulting in an extremely wide dynamic range to 141 dB. The saturation indicator alerts you of the need to use the internal attenuators.

The model 3301C antenna consists of an stainless steel rod, a counterpoise 61 cm x 61 cm (24 in x 24 in), a broadband high input impedance amplifier built into the base, and an AC power adapter for battery charging (nominal 90 to 265 VAC, 50/60 Hz). The front panel contains controls and indicators include a power switch and power-on indicator, a receptacle and indicator for the battery charger, a grounded female BNC output connector and a signal saturation indicator. Power is supplied by internal AA size rechargeable nickel-metal hydride batteries.

ETS-Lindgren 3301C Features:

  • 30 Hz to 50 MHz Frequency Range
  • Individually Calibrated 
  • MIL-STD 461G Compliant 
  • 30 Hours of Continuous Operation in a Single Charge

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