Isotron AM Broadcast Antennas




The Isotron AM Antennas are the perfect AM broadcast antenna for all broadcast band AM transmitters from 300 to 1000 Watts!

There are models available to cover the entire AM broadcast band. Order the model that covers the frequency you will be using. Antennas are factory tuned to your frequency but require minor assembly and adjustment by the customer. Requires NO GROUNDING SYSTEM so it’s incredibly easy to install. Includes complete instructions for tuning and use.


Model 200B – Max Length: 112″ Approx Wt: 8 lbs

Model 225 – Max Length: 233″ Approx Wt: 11 lbs

Model 400 – Max Length: 322″ Approx Wt: 18 lbs

Model 600 – Max Length: 454″ Approx Wt: 30 lbs

Wind Load (sq. feet): 1.69 – Wind Rating: 85 – Pattern: Omni – Connector: SO-239

The Isotron AM Antenna design is an electrical copy of a 1/2 wave dipole. Radiation patterns and formulas are not necessary for analyzing the tuning characteristics.

The Isotron antennas have been built physically to have proper capture area to the atmosphere. Enlarging the antennas more will have little affect on performance. The Isotron AM Antennas are not a loop, therefore, the radiation pattern is omnidirectional and polarization is random. Reception is noticed as soon as the receiver is connected. Low noise, good sensitivity and the affects of changing polarization is lower.

Antennas are built to order, Allow 1-2 weeks for delivery.


AM ISO Instruction Manual

30 Day No-Fault Guarantee Policy


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