Comtech CDM-760 High-Speed Trunking Modem
Quote-based pricing for government, teleport and enterprise buyers.
Need it installed, integrated or supported? Ask about Digisat engineering services.
Product details
The Comtech CDM-760 is a 1RU high-speed trunking and broadcast modem with ultra-wide symbol rates and near-theoretical DVB-S2/S2X performance. It runs from 0.1 to 150 Msps with more than 720 Mbps simplex and 1.4 Gbps duplex, supports Carrier-in-Carrier, ACM and dynamic pre-distortion, and works as a broadcast modulator, demodulator or modem across GEO, MEO and HTS with hitless handover.
Key features
- 0.1 to 150 Msps; >720 Mbps simplex, >1.4 Gbps duplex
- DVB-S2 and DVB-S2X with Efficiency Boost (EB1/EB2), ACM and CCM
- QPSK through 256APSK; rolloffs down to 5%
- DoubleTalk Carrier-in-Carrier and dynamic pre-distortion (DPD)
- 70/140 MHz and L-band IF with LNB power and 10 MHz reference
- Hitless antenna and satellite handover for MEO and HTS
- Gigabit Ethernet standard; optical GbE, E3/T3, STM-1 and OC-3 options
Specifications
| Part number | CDM-760 |
|---|---|
| Series | Comtech CDM-760 |
| Symbol rate | 0.1 to 150 Msps (simplex) |
| Data rate | 0.1 to >720 Mbps simplex; >1.4 Gbps duplex |
| Standards | DVB-S2 (EN 302 307), DVB-S2X (EN 302 307-2), DVB-S2-EB1/EB2 |
| Modulation | QPSK, 8PSK, 16APSK, 32APSK, 64APSK, 128APSK, 256APSK |
| Rolloff | DVB-S2: 20, 25, 35%; DVB-S2X: 5, 10, 15, 20, 25, 35% |
| IF | 70/140 MHz (to 180 MHz) and L-band (to 2150 MHz), 100 Hz steps; L-band monitor |
| Carrier-in-Carrier | Option; up to 63 Msps, ±7 dB interferer ratio |
| Interfaces | 2 x 10/100/1000Base-T standard; optical GbE, G.703 E3/T3/STS-1, STM-1, OC-3 options |
| Management | Front panel, RS-232/485, Ethernet with SNMP, Telnet, HTTP |
| Power | 100–240 VAC 50/60 Hz or 43–60 VDC; 88W typical |
| Size | 1RU: 1.75" H x 19" W x 18.65" D |
| Weight | 15 lbs |
Applications
- IP and telco trunking
- DVB-S2/S2X video delivery
- HTS, GEO and MEO trunks
- Disaster recovery
Frequently asked questions
Does the CDM-760 work on MEO constellations?
Yes. It supports MEO mode with hitless antenna and satellite handover, as well as GEO, HTS and LEO mode operation.
Need it installed, aligned or supported?
Digisat engineers install, commission and maintain satellite ground systems for government agencies, teleports and broadcasters worldwide. Request installation or engineering support.