Comtech CDM-425 Advanced Next Generation Satellite Modem

Comtech CDM-570A

Comtech CDMER-625A Advanced Satellite Modem

SKU
CDM-425
Comtech CDM-425 Advanced Next Generation Satellite Modem is available to buy in increments of 1

Carrier ID using MetaCarrier Technology, Automatic Uplink Power Control (AUPC), Engineering Service Channel (ESC/ESC++)

CDM-425 Next Generation Advanced Satellite Modem

The Comtech CDM-425 Ultra Advanced Satellite Modem offers the most advanced, popular and powerful features of the CDM-625A, with a smaller footprint and less power.  Its Forward Error Correction options comprise 18 VersaFEC  ModCods and 74 VersaFEC-2 ModCods, permitting the user to optimize for latency and coding gain for any link budget. It includes DoubleTalk Carrier-in-Carrier bandwidth compression, additional TX rolloffs and sophisticated packet processing capabilities. This combination of advanced technologies enables multi-dimensional optimization, allowing satellite communications users to:  

arrow Minimize operating expenses (OPEX)

arrow Maximize throughput without using additional transponder resources

arrow Maximize availability (margin) without using additional transponder resources

arrow Minimize capital expenses (CAPEX) by allowing a smaller BUC/amplifier and/or antenna

arrow Or, a combination to meet specific business needs

This modem is available with 70/140 MHz or L-Band IF and EIA-530/-422, V.35, sync EIA-232 and G.703 T1/E1 data interfaces. The CDM-425 includes a high-performance packet processor for IP-centric applications.

Comtech CDM-425 Modem RF Interface Panel

Key Features

arrow DoubleTalk Carrier-in-Carrier bandwidth compression

arrow Carrier-in-Carrier Automatic Power Control

arrow VersaFEC-2 High Performance LDPC with Adaptive Coding and Modulation (ACM), Short Block and Long Block – similar performance to DVB-S2X with significantly lower latency. 

arrow VersaFEC FEC with Adaptive Coding and Modulation (ACM), both standard and Ultra-Low Latency (ULL)

arrow Transmit Filter Rolloff

arrow Optional Packet Processor with header compression, payload compression, advanced Quality of Service (QoS) and Managed Switch Mode with VLAN support

arrow Integrated 4-port managed Ethernet switch with VLAN and QoS

arrow Jumbo frame support

arrow Dual Band Capability: 70/140 MHz and extended L-Band (950 – 2250 MHz) in same unit 

arrow Data Rate: 18 kbps to 25 Mbps

arrow Symbol Rate: 18 ksps to 12.5 Msps

arrow Modulation: BPSK, QPSK, 8-QAM/8-ARY, 16-QAM/16- ARY, 32-ARY

arrow FEC: VersaFEC (low-latency LDPC) and VersaFEC-2 (high performance LDPC)

Doubletalk Carrier-in-Carrier

CDM-425 carrier-in-carrier diagram

arrow Mobile Backhaul

arrow G.703 Trunking

arrow IP Trunking

arrow Offshore & Maritime Communications

arrow Enterprise

arrow Communications on-the-Move

arrow Satellite News Gathering