Isotron 225 AM Antenna

The Isotron 225 AM Antenna is a compact, high-performance solution available in 300 W and 1000 W models for professional broadcast use across 1350–1590 kHz.

Product overview

The Isotron 225 AM Antenna is a compact AM broadcast antenna designed for installations where a full-size grounded AM radiator is impractical. It is part of the Isotron AM broadcast family, with the 225 model intended for use higher in the AM band compared with larger Isotron variants. The antenna is factory tuned to the ordered operating frequency and requires only minor assembly and on-site adjustment by the customer. It is a practical choice for broadcasters using AM transmitters in locations where space, mast height or ground-system requirements make a conventional AM broadcast antenna difficult or costly to deploy.

Key features of the Isotron 225 AM Antenna

  • Compact AM broadcast antenna for mid-to-upper AM band frequencies
  • Factory tuned to the specified operating frequency
  • No conventional buried ground radial system required
  • Suitable for low- and medium-power AM broadcast transmitters
  • Omnidirectional radiation pattern with random polarization
  • Requires only basic assembly and final adjustment
  • Space-saving Isotron design for constrained sites

Connectivity and construction

The Isotron 225 AM Antenna follows the same mechanical and electrical design principles as other Isotron AM models, using a compact vertical structure that reduces the physical height normally associated with AM antennas. It is fitted with a standard RF connector for straightforward connection to the transmitter output and is engineered for outdoor mounting on a suitable support structure. For stations planning a complete AM installation, it pairs naturally with related transmitter accessories such as AM Audio Processors, while the absence of a traditional ground radial field helps simplify site preparation and reduce installation time.

In operation

In everyday use, the Isotron 225 AM Antenna is well suited to small and medium AM broadcast projects, technical demonstration stations and locations where zoning, landlord restrictions or property size limit antenna options. Its compact format and tuned design allow broadcasters to place an AM signal on the air in situations where a conventional tower and ground system are not feasible. As the antenna is built to operate on a specific frequency, accurate specification of the intended channel at the time of order is essential for optimal performance.