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HD Radio® MER Instrumentation

Nautel provides instrumentation for real-time measurement of MER (Modulation Error Ratio). The measurements follow the NRSC standards for measurement, and require no external equipment.

Real-time MER lets you diagnose issues such as interference with the MP3 carriers near the analog signal due to FM analog signal over-modulation.

HD Radio MER FM on AUI

Available on Nautel GV, NV, and NX Series transmitters with software release 4.0 or higher, the MER measurement is viewed in the AUI Constellation View display on the front panel LCD touch screen, or remotely via browser.

After initiating a spectrum view within the AUI, all subcarriers will be shown and individual subcarriers can be selected to display full detail.