Antennas from ValueTronics International, Inc.

Dipole Antenna -- AD-100

Dipole Antenna -- AD-100 -- View Larger Image
Dipole Antenna -- AD-100-Image

The AD-100 is a Dipole Antenna from Com-Power. A state-of-the-art antenna preamplifier can enhance the performance of electronic test equipment with a bad or weak signal. Antennas boost signals and can overcome signal losses related to splitters and junctions.

Additional Features:

Frequency Range:

  • Balun 1 : 30 MHz - 65 MHz
  • Balun 2 : 65 MHz - 175 MHz
  • Balun 3 : 175 MHz - 400 MHz
  • Balun 4 : 400 MHz - 1000 MHz
  • Impedance: 50 Ohm
  • Connector Type: BNC female
  • Low balun loss
  • Appropriate for EMI site calibration
  • Element length assembled: min: 6 inches, max: 212 inches
  • Weight: 8 lbs
  • Carrying case included

Standard Configuration:

  • Four antenna baluns
  • Four fixed length extension rods
  • Two low frequency adjustable elements
  • Two medium frequency adjustable elements
  • Balun 1 base drilled to accept 1/4" x 20 threads
  • Typical calibration data in the manual

Optional items:

  • Clamp block ( ATC-001) for tripod mounting
  • Individual calibration data & certificate

The Com-Power AD-100 Dipole Antenna Set is a standard antenna set which operates in the frequency range of 30 MHz to 1000 MHz for E-Field measurements. The Com-Power AD-100 set consists of four baluns and was designed according to American National Standard for Calibration of Antennas for Radiated Emissions in Electromagnetic Interference (EMI) Control C63.5.

The dipoles can be tuned to any frequency by selecting the balun for that frequency and adjusting the length of antenna elements to the half wavelength (calculated by 3x108/frequency in MHz/2). The length can be achieved by attaching together pairs of fixed and adjustable elements (lower frequencies) or a pair of adjustable elements (higher frequencies) to each side of the antenna balun. The fixed length elements were designed to minimize drooping, especially at low frequencies where the tuned dipole elements are long. The dipoles are shipped with typical calibration data, which is included in the manual. However, the dipole set can be individually calibrated upon request. The antenna set includes a custom carrying case.

Although broadband antennas such as biconical and log periodic antennas are used for day-to-day EMC measurement, tuned dipoles antennas are still considered the standard antenna. Dipole antennas are not considered the antennas of choice for sweep measurements, because it must be tuned at each frequency. However, dipoles are preferable and in some cases required for site attenuation measurements. It is also considered the reference antenna that can be used to calibrate other antennas operating in the same frequency range.

Com-Power Corporation
Manufacturer Part Number
Product Category
Performance Specifications
Primary Frequency Range
1000.0 MHz
Physical Specifications & Additional Features
Technology Type

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