In today’s fast-evolving satellite communication environment, service providers face the challenge of delivering more capacity and higher throughput at a lower cost. SatHarbor is excited to showcase the Comtech CDM-760—an advanced high-speed trunking and broadcast modem that merges cutting-edge modulation, forward error correction (FEC), and bandwidth optimization technologies into a single, robust solution. Whether you operate large-scale IP trunking links, broadcast high-definition media, or enable emergency satellite connectivity, the CDM-760 offers a new standard of efficiency and reliability.

Key Features & Technical Highlights

1. Ultra-Wide Symbol & Data Rates

   • The CDM-760 accommodates symbol rates from 100 ksps up to 150 Msps and data rates surpassing 720 Mbps in simplex mode (over 1.4 Gbps in duplex).
   • This remarkable flexibility supports both high-capacity backbone links and mission-critical video feeds, ensuring consistent performance under various network loads.

2. DVB-S2X & Efficiency Boost Waveforms

   • Supports the latest DVB-S2X (EN 302 307-2) standard, plus Comtech’s DVB-S2-EB (Efficiency Boost) waveforms, for near-theoretical power and bandwidth efficiency.
   • Adaptive Coding and Modulation (ACM) dynamically adjusts modulation and FEC based on real-time link conditions, leveraging clear-sky margins to enhance throughput.

3. DoubleTalk® Carrier-in-Carrier® Bandwidth Compression

   • By overlaying transmit and receive carriers within the same transponder space, DoubleTalk® Carrier-in-Carrier® cuts the required bandwidth while preserving throughput.
   • This unique approach helps trunking operators and broadcasters reduce ongoing costs and maximize existing satellite resources.

4. High-Speed Packet Processor & Compression

   • An optional packet processor supports traffic classification, multi-level QoS, and hardware-based header compression to significantly reduce overhead—essential for real-time broadcasts, voice, or IP trunking traffic.
   • GZIP-based K4 compression further shrinks payload data, frequently achieving 50% or greater reductions in many file-transfer scenarios.

5. Dynamic Pre-Distortion (DPD) & DVB-CID

   • DPD technology compensates for amplifier distortion, allowing operators to push satellite amplifiers deeper into saturation without compromising signal clarity.
   • DVB-CID (ETSI TS 103 129) embeds an ID tag within the carrier, simplifying interference resolution in congested orbital slots—critical for broadcast network reliability.

6. Wide Interface Compatibility

   • Standard 10/100/1000Base-T Ethernet ports support jumbo and super jumbo frames for high-volume data, and optional interface cards handle G.703 E3/T3/STS-1, STM-1, or ASI connections.
   • Integration with 1:1 or 1:N redundancy setups helps safeguard operations for disaster recovery satellite solutions or round-the-clock media broadcasting.

Typical Applications

1. Global Trunking & Backbone

   • ISPs, telco operators, and mobile network providers can leverage the CDM-760’s multi-hundred Mbps data rates to backhaul large volumes of traffic across vast geographic regions.

2. HD/UHD Broadcast Feeds

   • Television networks, content aggregators, and live events benefit from advanced modulation (QPSK up to 256APSK) and low overhead encapsulation, ensuring minimal cost per bit.

3. Disaster Recovery & Emergency Communications

   • High-speed connectivity is vital in times of crisis. The modem’s powerful bandwidth compression and ACM help maintain stable, high-capacity links even in adverse conditions.

4. Government & Military Networks

   • With robust security, rapid acquisition, and advanced compression, the CDM-760 delivers secure trunking solutions suitable for classified data, maritime fleets, and remote defense outposts.

Best Practices & Considerations

• Leverage ACM: Take advantage of Adaptive Coding and Modulation to dynamically optimize link performance based on varying signal-to-noise conditions.
• Activate DoubleTalk®: Overlapping carriers can dramatically cut operational expenses (OPEX) when trunking or broadcasting full-duplex traffic.
• Plan for Redundancy: Critical broadcast and trunking lines benefit from 1:1 or 1:N modem switching to minimize downtime.
• Use QoS & Compression: In congested networks, advanced traffic shaping and GZIP compression reduce IP overhead and prioritize high-value content.

Why Choose SatHarbor

• End-to-End Integration: Our engineering team handles everything from initial consultation to system deployment, delivering seamless turnkey solutions.
• Global Experience: We’ve implemented high-capacity satellite links in challenging locales, including remote energy installations and central Asia’s Ku-band networks.
• 24/7 Support: Rely on continuous technical assistance for any hardware, software, or design concerns.
• Authorized Comtech Partner: Access genuine CDM-760 modems, official warranty coverage, and immediate spares availability.

The Comtech CDM-760 redefines the possibilities of high-speed satellite trunking and broadcast networks, setting new benchmarks in throughput, spectral efficiency, and operational flexibility. Whether you’re upgrading an existing backbone or launching a new broadcast feed, SatHarbor ensures that your satellite communications remain reliable, scalable, and cost-effective.

Ready to transform your satellite connectivity? Contact SatHarbor today for a custom solution.