DMD20 LBST L-Band Satellite Modem and ODU Driver

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DMD20 LBST L-Band Satellite Modem and ODU Driver

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  • FSK M&C channel for smart BUCs
  • Integrated 10 MHz high-stability reference
  • Programmable 13, 15, 18, or 20 VDC for LNB
  • Optional 24 or 48 VDC for up to 10 W BUC
  • 950 to 2050 MHz L-Band TX/RX operation
  • BPSK/QPSK/OQPSK/8PSK/8-QAM/16-QAM operation
  • 2.4 kbps to 20 Mbps, 1 bps steps

SKU: CMT118 Tags: , , , ,
  • Description
  • Technical Specifications
  • Support Documents

Overview

The DMD20 LBST L-Band Satellite Modem breaks new ground in flexibility, operation and cost. With standards including IDR, IBS and DVB, and covering data rates up to 20 Mbps, this 1RU duplex modem covers virtually all your Satellite IP, Telecom, Video and Internet applications.

DMD20 LBST now offers DoubleTalk® Carrier-in-Carrier® bandwidth compression. DoubleTalk Carrier-in-Carrier, based on patented “Adaptive Cancellation” technology, allows transmit and receive carriers of a duplex link to share the same transponder space. DoubleTalk Carrier-in-Carrier is complementary to all advances in modem technology, including advanced FEC and modulation techniques. As these technologies approach theoretical limits of power and bandwidth efficiency, DoubleTalk Carrier-in-Carrier utilizing advanced signal processing techniques provides a new dimension in bandwidth and power efficiency.

Details

  • FSK M&C channel for smart BUCs
  • Integrated 10 MHz high-stability reference
  • Programmable 13, 15, 18, or 20 VDC for LNB
  • Optional 24 or 48 VDC for up to 10 W BUC
  • 950 to 2050 MHz L-Band TX/RX operation
  • BPSK/QPSK/OQPSK/8PSK/8-QAM/16-QAM operation
  • 2.4 kbps to 20 Mbps, 1 bps steps
  • Configuration, monitor and control features full user-programmable
  • FEC – Viterbi, Reed-Solomon, Sequential, Trellis, TPC, Low Density Parity Check Code (LDPC)
  • Excellent spurious performance
  • Fully compliant with IESS-308/309/310/314/315
  • Optional DVB to EN301-210 and EN300-421
  • Industry-standard universal interface module
  • Standard features include: Reed-Solomon, Asynchronous Overhead, automatic uplink power control and CM701 compatible satellite control channel
  • SCPC / MCPC Links

Modulator
Modulation BPSK, QPSK, and OQPSK (8PSK, 8-QAM & 16-QAM optional)
L-Band Tuning Range 950 to 2050 MHz in 1 Hz steps
Impedance 50 Ohm
Connector Type N female
Return Loss 10 dB minimum
Output Power 0 to -25 dBm
Output Accuracy ±1.0 dB over frequency and temperature
Output Spectrum Meets IESS-308/309/310 power spectral mask (DVB-S optional)
Spurious -55 dBc In-band
-45 dBc Out-of-band
Harmonics -45 dBc
On/Off Power Ratio >60 dB
Scrambler CCITT V.35 or IBS (others optional)
FEC Viterbi, K=7 at 1/2, 3/4 and 7/8
Trellis 2/3
Sequential 1/2, 3/4 and 7/8 (optional)
Turbo Product Code (optional)
BPSK: 21/44
QPSK/OQPSK: 1/2 (21/44), 3/4, 7/8
8PSK/8-QAM, 16-QAM: 3/4, 7/8
Legacy Turbo Rates: 0.495, 0.793 (optional)
LDPC (optional)
BPSK: 1/2
QPSK/OQPSK: 1/2, 2/3, 3/4
8PSK/8-QAM: 2/3, 3/4
16-QAM: 3/4
Outer Encoder Options Reed-Solomon Intelsat (DVB-S optional)
Custom (N, K) Reed-Solomon (optional)
Data Clock Source Internal, external, RX recovered
Internal Stability 5 x 10-8
BUC DC Voltage BUC 24 V @ 4 A maximum
BUC 48 V (optional)
BUC Reference 10 MHz, 3 dBm ± 3 dB
BUC FSK 710/590 KHz Nominal (optional)
Demodulator
Demodulation BPSK, QPSK, and OQPSK (8PSK, 8-QAM & 16-QAM optional)
L-Band Tuning Range 950 to 2050 MHz in 1 Hz steps
Impedance 50 Ohm
Connector Type N female
Return Loss 10 dB minimum
Spectrum Intelsat IESS-308/309/310 compliant (DVB-S optional)
Input Level 10 x log (symbol rate) – 100, ± 12 dBm
FEC Viterbi, K=7 at 1/2, 3/4 and 7/8
Trellis 2/3
Sequential 1/2, 3/4 and 7/8 (optional)
Turbo Product Code (optional)
BPSK: 21/44
QPSK/OQPSK: 1/2 (21/44), 3/4, 7/8
8PSK/8-QAM, 16-QAM: 3/4, 7/8
Legacy Turbo Rates: 0.495, 0.793 (optional)
LDPC (optional)
BPSK: 1/2
QPSK/OQPSK: 1/2, 2/3, 3/4
8PSK/8-QAM: 2/3, 3/4
16-QAM: 3/4
Total Input Power -10 dBm or +40 dBc (the lesser) @ 64 kbps, symbol rate dependent
Decoder Options Reed-Solomon Intelsat (DVB-S optional)
Custom (N, K) Reed-Solomon (optional)
Descrambler CCITT V.35 or IBS (others optional)
Acquisition Range Programmable ±1 kHz to ± 255 kHz
Sweep Delay Value 100 msec to 6000 seconds in 100 msec steps
LNB Reference 10 MHz, 3 dBm ± 3 dB
LNB DC Voltage 13, 15, 18, 20 VDC (750 mA maximum), programmable
(View our PDF Datasheet for more information)

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