Comtech Telecommunications Corp.'s (Nasdaq:CMTL) Tempe, Arizona-based subsidiary, Comtech EF Data Corp., has received a US$1.3 million order for satellite communications equipment. A leading telecommunications operator will install Comtech's bandwidth-efficient satellite modems to enable cellular backhaul network expansion in South America, a region that is experiencing significant satellite bandwidth shortages.

Specified in the order were the CDM-625 Advanced Satellite Modem and companion redundancy switches. The CDM-625 models ordered include an array of features ideally suited to cellular backhaul applications, including DoubleTalk(r) Carrier-in-Carrier(r) bandwidth compression, Drop & Insert and Low Density Parity Check (LDPC) codes. DoubleTalk includes advanced forward error correction and modulation techniques. As these technologies approach theoretical limits of power and bandwidth efficiency, DoubleTalk Carrier-in-Carrier, using advanced signal processing techniques, provides a new dimension in bandwidth and power efficiency. When combined with VersaFEC or LDPC/TPC, it can provide unprecedented savings in transponder bandwidth and power use.