Skip to product information
Comtech CDM-625A Advanced Satellite Modem

Comtech CDM-625A Advanced Satellite Modem

Price on request

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-625A is an advanced SCPC satellite modem with DoubleTalk Carrier-in-Carrier, VersaFEC-2 adaptive coding and modulation, and data rates from 18 kbps to 25 Mbps in 1RU.

Other models in this series

  • CDM-625A-EN: an advanced satellite modem with AES encryption for IP traffic and 70/140 MHz plus L-band IF in the same unit
  • CDM-625A-ENI: an advanced satellite modem with encryption, an integrated 4-port managed Ethernet switch and sub-mux for serial and G.703 traffic
  • CDMER-625A: the environmentally resistant (ER) version of the CDM-625A, conformal-coated with protective connector covers to meet MIL-STD-810G blowing dust, blowing sand and salt fog

Compare all 4 Comtech CDM-625A Series Advanced Satellite Modems models

Specifications

Part number CDM-625A
Series Comtech CDM-625A
Data rate 18 kbps to 25 Mbps in 1 bps steps (modulation, FEC and interface dependent)
Symbol rate 18 ksps to 12.5 Msps
Operating frequency 50–180 MHz standard; 950–2250 MHz option; 100 Hz resolution
Modulation BPSK, QPSK/OQPSK, 8PSK/8-QAM/8-ARY, 16-QAM/16-ARY, 32-ARY
FEC Viterbi, sequential, concatenated Reed-Solomon, TCM, TPC, LDPC, VersaFEC, VersaFEC-2
Carrier-in-Carrier DoubleTalk Carrier-in-Carrier bandwidth compression (option)
Management 10/100Base-T Ethernet with SNMP, HTTP, Telnet; EIA-232, EIA-485
External reference BNC; 1, 2, 5 or 10 MHz input or 10 MHz output
Power 100–240 VAC, 50/60 Hz; -24 VDC or -48 VDC options
Size 1RU: 1.75" H x 19" W x 17.65" D
Weight 10.8 lbs max. (all options and 48 VDC BUC supply)
Version Standard

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.