Com-Power AB-900A Rental- Biconical Antenna 20MHz-300MHz

Biconical Antenna:

  • Frequency 25 MHz to 300 MHz (Max 50Watts)
  • Antenna Factor 6 to 19 @ 10meters
  • Ideal for Emissions Requirements
  • Includes Tripod & PAM-103 Preamplifier
  • Typically Rented with Analyzer


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Associated Radiated RF Equipment



The AB-900A is a broadband, linearly polarized Biconical Dipole Antenna, operating over the frequency range of 25 MHz to 300 MHz. It can be used as either a receiving antenna (for EMI measurements) or as a transmitting antenna (for immunity tests) at power levels up to 50 watts.

The AB-900A Biconical Antenna is intended for use as an EMI test antenna for qualification-level regulatory compliance measurements (FCC, CE, MIL-STD-461, RTCA DO-160, FDA, SAE Automotive, and similar applications). The AB-900A can also be used in conjunction with an RF power amplifier (up to 50 watts) to generate RF fields associated with radiated immunity testing.

In addition, a pair of AB-900A Biconical Antennas can be used for Normalized Site Attenuation (NSA) calibrations of Open Area Test Sites (OATS) or SemiAnechoic Chambers (SAC) using the Geometry Specific Correction Factors (GSCF) given in Tables G.1 through G.3 of ANSI C63.5, as its physical dimensions conform to the minimum and maximum values given in Figure G.1 of ANSI C63.5 (Dimensions of biconical dipole antennas evaluated for numerical correction). If biconical antennas have dimensions which do not conform to these dimensions, the given GSCF values can not be used, and would need to be determined by performing GSCF calibration on a Standard Antenna Calibration Site (SACS) as described in Annex H of ANSI C63.5.

Data SheetUser Manual


Frequency Range

25 MHz to 300 MHz

 Antenna Factor

6 to 19 (average: 13.8) [dB(m-1)] @ 10 meters




>20 dB Rejection

Nominal Impedance

50 Ohm


Max Power 50 Watts (continuous)

Isotropic Gain

19 to 3 (average: -0.8) dBi @ 10 meters
VSWR: 1.2 to 104 (average: 7.3) :1 without impedance matching pad 1.12 to 1.86 (average: 1.39) :1 with 5 dB impedance matching pad

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