Datum M7D Compact IF and L-Band Satellite Dual Demodulator

Datum M7D Compact IF and L-Band Satellite Dual Demodulator 

The Datum Systems M7D is a compact, modular dual satellite demodulator designed for SCPC, managed-bandwidth and multi-carrier satellite networks. Its two fully independent demodulators can receive carriers from different bandwidth allocations or satellite transponders, providing flexible operation at hub and remote sites.

Available for 50–180 MHz IF or 950–2150 MHz L-band, the M7D supports data rates from 1.2 kbps to 59.04 Mbps and multiple demodulation formats through 16QAM. Advanced FlexLDPC coding, granular code rates and selectable block sizes help maximize bandwidth efficiency while maintaining low processing latency.

The half-rack 1RU design allows two M7D units to be installed side by side in a standard rack. Flexible interface options include advanced IP routing, Express Ethernet, serial, HSSI and dual G.703/E1.

Frequency Range: 50–180 MHz IF or 950–2150 MHz L-band
Configuration: Two independent satellite demodulators
Operating Mode: Continuous SCPC receive
Data Rate: 1.2 kbps–59.04 Mbps, adjustable in 1 bps steps
Symbol Rate: 2.4 ksps–14.76 Msps, adjustable in 1 sps steps
Demodulation: BPSK, QPSK, OQPSK, 8PSK, 8QAM and 16QAM
FEC: FlexLDPC, Viterbi, Reed-Solomon, TCM and optional TPC
Carrier Roll-Off: 5%, 8%, 10%, 15%, 20%, 25%, 30%, 35% and 40%
Interface Options: IP, Ethernet, serial, HSSI and dual G.703/E1
Ethernet Interface: Four RJ-45 Gigabit Ethernet ports plus optional SFP
IP Operating Modes: Bridge or router
Management: Web browser, SNMP, RS-232 and RS-485
Input Power: 8–36 VDC; optional -48 VDC
Operating Temperature: 0°C to +50°C
Dimensions: 8.5 × 11 × 1.75 inches
Weight: Less than 5 lb fully configured

Key Features:

• Two fully independent satellite demodulators

• IF and L-band frequency configurations

• FlexLDPC with multiple block sizes and code rates

• Data rates up to 59.04 Mbps per demodulator

• Sharp carrier roll-off factors down to 5%

• Low-latency processing and fast signal acquisition

• Supports carriers from separate transponders or bandwidth allocations

• Advanced Linux-based IP interface with bridge and router modes

• Express Ethernet Layer 2 switched bridge

• Four Gigabit Ethernet ports with optional copper or fiber SFP

• Optional serial, HSSI and dual G.703/E1 interfaces

• Compact half-rack design allows two units per 1RU

• Suitable for cellular backhaul, enterprise, IP and E1 networks