The WRM (Wake Up Radio Module) is an innovative product, which was designed and produced by Seraphim. The WRM is used to wake-up the MUGI when it is in sleep mode, and thus achieve longer operation time of the MUGI system and electronic silence between times of operations.
The WRM, is a control radio link between the C&C unit and the MUGI system. The WRM uses addressable data packets with error checking, packet acknowledgements and retransmissions to achieve a reliable wireless data link.
The "WRM transmitter" is part of the C&C unit. The "WRM receiver" is a small separate unit connected to the MUGI Surveillance unit by a cable.