Adaptive Coding & Modulation (ACM)

ACM refers to the automatic adjustment that a wireless system can make in order to optimize over-the-air transmission and prevent weather-related fading from causing communication on the link to be disrupted.

When extreme weather conditions, such as a storm, affect the transmission and receipt of data and voice over the wireless network, an ACM-enabled radio system automatically changes modulation and/or coding allowing real-time applications to continue to run uninterrupted. Varying the modulation and/or coding will also vary the amount of bits that are transferred per signal, thereby enabling higher throughputs and better spectral efficiencies.