Directional Antennas

Models 501, 503, 513, 524/527B/527, 548

  • Short-range communications
  • Full 2 to 30 MHz coverage
  • High efficiency 
  • Highest gain and broadcast bandwidth for a given tower height
  • Combines low tower height of a monopole for low frequency operation with the gain of a dipole log periodic at higher frequencies


The 501 is essentially 100 percent efficient from 2 to 30 MHz.

The Model 503 family of antennas provides efficient long-haul or sectoral coverage service.

The TCI 513 series of Di-Monopole antennas represent a new class of improved log periodic

Highly reliable communications on long-range circuits require antennas with high power gain at low take-off angles.

Log-periodic antennas are used extensively for high frequency communications circuits because of their wide frequency bandwidth
and compact size.

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Additional Resources

Scorpio Spectrum Monitoring Software

Scorpio provides complete control and monitoring of our 700 series spectrum monitoring systems; and a full suite of ITU-compliant measurement, analysis and reporting tools.

Model 640 DSC VHF/UHF Antenna

20 MHz to 3 GHz VHF/UHF vertically-polarized, omnidirectional monitoring antenna

Model 640-8 SHF Monitoring Antenna

3 GHz to 8.5 GHz vertically-polarized SHF monitoring antenna

Model 642 VHF/UHF/SHF Antenna

20 MHz to 8.5 GHz VHF/UHF vertically-polarized, omnidirectional monitoring antenna

Model 7031 HF Antenna

9 kHz to 30 MHz HF dual-polarized, active monitoring antenna