Specifications

1–1
Chapter 1. INTRODUCTION
The SDM-300L3 Satellite Modem is designed to meet the requirements of the Satellite
Digital Communications industry. The SDM-300L3 Satellite Modem is a high
performance, full duplex modem compliant with IESS-308/309/310, FDC, and V.35
specifications, but also adds significant other features in Closed Network modes. It offers
variable data rates from 2.4 kbps to 5.0 Mbps, in BPSK, QPSK, OQPSK, and 8PSK.
Viterbi, Sequential, concatenated Reed-Solomon (RS), Trellis Coded Modulation (TCM),
and Turbo Product Coding (TPC) are provided as Forward Error Correction (FEC)
options. EIA-232, EIA-422, G.703, and V.35 (25-pin) interface types are available. The
range of IF frequency simultaneously covers 950 to 1750 MHz.
SDM-300L3
Satellite Modem