PSK is a digital mode of radio communication enabling keyboard to keyboard communication over radio as well as small file transfer between stations.  PSK has applications in emergency communication because text-based information can be more easily transmitted digitally than over voice communication.  PSK stands for Phase Shift Keying which refers to the way the signal is formed by the PSK computer interface before being transmitted over the radio.  Because of the nature of PSK, it is very tolerant of poor weather conditions, it requires very little output power, and due to the narrow band width of the signal, PSK makes very efficient use of the spectrum.

For further information regarding NBEMS, please visit the application’s website at 



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