[SatNews] Comtech EF Data Corp. has received a $1.8 million order for its SLM-5650A satellite modems from the U.S. government to upgrade an existing satellite-based communications network.

The SLM-5650A Satellite Modem is compliant with the strict requirements defined in MIL-STD-188-165A, modem types I, II, IV, V and VI for applications on DSCS, WGS, and commercial satellites. The order specified advanced options for the SLM-5650A that increase its bandwidth efficiency and flexibility, including the transmission security (TRANSEC) and Network Processor modules. The TRANSEC module for the SLM-5650A Satellite Modem provides bulk AES-256 encryption/decryption in accordance with the FIPS-140-2 Level 2 specification. It encrypts all traffic sent over the air, including data traffic, overhead channel and Vipersat Management System messages. The Network Processor module provides advanced IP features including routing, switching, Quality of Service, and Vipersat dynamic bandwidth control. The modems will be integrated with Comtech EF Data's Vipersat Management System (VMS), which is the engine that provides dynamic Single Carrier per Channel bandwidth management of the space segment.