Radyne ComStream DMD2401 LBST L-Band Satellite Modem and ODU Driver L band

Radyne ComStream DMD2401 LBST L-Band Satellite Modem and ODU Driver L band

The Radyne ComStream Corporation DMD2401 LB/ST L-Band Satellite Modem and Outdoor Unit (ODU) Driver is a microprocessor-controlled Binary Phase Shift Keyed (BPSK), Quadrature Phase Shift Keyed (QPSK), Offset Quadrature Phase Shift Keyed (OQPSK), 8PSK Trellis Coded 8-Phase Shift Keyed Modulator and Demodulator for use as part of the transmitting and receiving ground equipment in a satellite communications system. The DMD2401 LB/ST has the capability of delivering power and a 10 MHz Reference Signal to a Low Noise Block Downconverter (LNB) and also to a Block Upconverter (BUC) capable of an 8-Watt Output. The DMD2401 LB/ST Modem may be referred to as the “modem” throughout the remainder of this document.

This versatile equipment package combines unsurpassed performance with numerous user-friendly Front Panel programmable functions. All of the configuration, monitor and control functions are available at the Front Panel. Operating parameters such as variable data rates, FEC Code Rate and IF/RF Frequencies can be readily set and reconfigured from the Front Panel by earth station operations personnel. Additionally, all functions can be accessed with a terminal or personal computer via a serial link for complete remote monitor and control capability.

The DMD2401 LB/ST operates at data rates up to 4.375 Mbps. Selection of any data rate is provided over the range of 9.6 Kbps to 4.375 Mbps in 1 bps steps.

The DMD2401 LB/ST is designed to perform as both ends of a satellite Single Channel Per Carrier (SCPC) Link or as the VSAT remote site modem in a TDMA Hub System. The Modulator and Demodulator operate independently using BPSK, QPSK, OQPSK, or 8PSK Modulation in either SCPC or VSAT Modes.

The DMD2401 LB/ST is programmable from the Front Panel. The program menu was specifically designed for ease of use to quickly put the modem online and for any network changes. The modem also can be monitored and controlled through the RS-485 or RS-232 serial control channel.