Datum M7D Satellite Multi-Demodulator

Datum Systems M7D 32-Channel L-Band / IF Satellite Multi-Demodulator

The Datum Systems M7D is a compact, high-density satellite multi-demodulator designed for SCPC return links in Point-to-Multipoint, Mesh, and Hub-based SATCOM networks. Supporting up to 32 independent ACM receive channels in a half-rack 1RU form factor, the M7D delivers exceptional spectral efficiency using FlexLDPC coding and sharp carrier roll-off technology. With support for both IF and L-Band operation, fast carrier acquisition, and a built-in Gigabit Ethernet switch, the M7D significantly reduces rack space, power consumption, and cost for FSS and HTS hub installations.

Frequency Band: IF 50–180 MHz, L-Band 950–2250 MHz

Operating Mode: RX Continuous (SCPC)

Receive Channels: Up to 32 per half-rack (64 per full rack)
Demod Cards: 2 cards, 16 RX channels each
Center Frequency Bandwidth: 80 MHz per demod card, 160 MHz total
Data Rate Range (Per Channel): 16 kbps to 75 Mbps
Aggregate Data Rate: 16 kbps to 75 Mbps
Symbol Rate Range: 16 ksps to 72 Msps (1 sps steps)
Modulation: BPSK, QPSK, 8APSK, 16QAM
FEC: FlexLDPC, multiple block sizes and code rates
ACM: Supported
Roll-Off Factors: 5, 10, 15, 20, 25, 30, 35 %
Input Connector: SMA (Female), 50 Ω
Input Return Loss: >16 dB
Receive Acquisition Time: typ. 500 ms at 64 kbps, QPSK
Ethernet Interface: 5 × RJ-45 Gigabit ports, 1 × SFP
Ethernet Features: Layer-2 switched bridge, QoS, VLAN support
Management: Web GUI, SNMP, RS-232, RS-485
Alarm Outputs: 2 × Form-C
Power Input:
    • 100–240 VAC via AC-DC adapter (24 V, 65 W max)
    • 8–36 VDC or –48 VDC optional
Operating Temperature: 0 °C to +50 °C
Storage Temperature: –20 °C to +70 °C
Form Factor: Half-rack, 1RU height
Dimensions: 8.5 × 11 × 1.75 in
Weight: < 5 lb, fully configured
Compliance: CE, ETSI EN 301 489-1, EN50022, EN50024, EN60950
RoHS: Compliant