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Radyne DMD20 LBST L-Band Satellite Modem and ODU Driver

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  • Data Rates up to 20 Mbps
  • Web Browser Interface
  • Programmable voltage for LNB
  • Now with DoubleTalk Carrier-in-Carrier


SKU: SATRES-8949

Modulator
Modulation BPSK, QPSK, and OQPSK (8PSK, 16QAM Optional)
L-Band Tuning Range 950 to 2050 MHz in 1 Hz Steps
Impedance 50 Ohm
Connector Female Type N
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

    In-Band

    Out-of-Band


-55 dBc

-45 dBc
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

Turbo Product Code (Optional) Per IESS 315

BPSK 21/44

QPSK/OQPSK 1/2, 3/4, 7/8

8PSK/16QAM 3/4, 7/8

Legacy Turbo Rates: 0.495, 0.793
Outer Encoder Options Reed-Solomon INTELSAT (DVB 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, 16QAM 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, ±12dBm
Total Input Power -10 dBm or +40 dBc (the lesser) @ 64 Kbps, Symbol Rate Dependent
FEC
Viterbi, K=7 at 1/2, 3/4 and 7/8 Rate,

Rate Sequential 1/2, 3/4, 7/8 (Optional),

Trellis 2/3,

Turbo Product Code (Optional) Per IESS 315,

BPSK 21/44,

Custom (N,K) Reed-Solomon,

QPSK/OQPSK 1/2, 3/4, 7/8,

8PSK/16QAM 3/4, 7/8,

Legacy Turbo Rates: 0.495, 0.793,
Decoder Options Reed-Solomon INTELSAT (DVB-S Optional)
Descrambler CCITT V.35 or IBS (Others Optional)
Acquisition Range Programmable ±1 kHz to ± 255 kHz
Sweep Delay Value 100 msec to 6000 sec. in 100 msec Steps
LNB Reference 10 MHz, 3 dBm ± 3 dB
LNB DC Voltage 13, 15, 18, 20 VDC (750 mA Maximum), Programmable
Plesiochronous Buffer
Size 0 ms to 64 msec
Centering Automatic on Underflow or Overflow
Centering Modes IBS: Integral Number of Frames

IDR: Integral Number of Multi Frames
Clock Transmit, External, Rx Recovered or SCT (Internal)
Monitor and Control
Remote RS-485/Terminal RS-232/Ethernet 10 Base-T, Web Browser
FSK CODAN/TERRASAT Smart BUCs
DMD20 LBST Drop and Insert (Optional)
Terrestrial Data 1.544 Mbps or 2.048 Mbps, G.732/733
Line Coding AMI or B8ZS for T1 and HDB3 for E1
Framing D4, ESF and PCM30 (PCM 30C) or PCM31 (PCM 31C) for E1
Time Slot Selection n x 64 Contiguous or Arbitrary Blocks for Drop or Insert
EFFICIENT D&I Closed Network, Satellite Overhead 0.4%
Time Slots 1-31 Any Combination
Terrestrial Interfaces
DVB ASI/SPI, HSSI, Ethernet 4 Port 10/100 Base-T,

HSSI/Ethernet 4 Port 10/100 Base-T, HSSI/G703 T1/E1/T2/E2
DoubleTalk Carrier-in-Carrier
Delay Range 0 to 300 ms
Power Spectral Density Ratio (Interferer to Desired) BSPK/OQPSK/QPSK/8-PSK/8-QAM: -7 dB to +10 dB 16-QAM: -7 dB to +7 dB
Maximum Symbol Rate Ratio 3:1 (TX:RX or RX:TX)
Eb/No Degradation 0 dB Power spectral density ratio

BPSK/QPSK/OQPSK: 0.6 dB

8-QAM: 0.7 dB

8-PSK: 0.8 dB

16-QAM: 0.9 dB
Satellite Restrictions Satellite in “loop-back” mode (i.e., the transmit station can receive itself)

“Non-processing” satellite (i.e., does not demodulate or remodulate the signal)
IDR/ESC Interface (Optional)
G.703 T1 (DSX1) 1.544 Mbps, 100 Ohm Balanced, AMI and B8ZS Line Codes
G.703 E1 2.048 Mbps, 75 Ohm Unbalanced and 120 Ohm Balanced, HDB3
G.703 T2 (DSX2) 6.312 Mbps, 75 Ohm Unbalanced, B8ZS Line Code and 110 Ohm Balanced, B6ZS Line Code
G.703 E2 8.448 Mbps, 75 Ohm BNC, Unbalanced, HDB3 Line Code
IBS/Synchronous Interface (Standard)
RS-422/-530 All Rates, Differential, Clock/Data, DCE
ITU V.35 All Rates, Differential, Clock/Data, DCE
RS-232 (DCE up to 200 Kbps)
Environmental
Prime Power 100 to 240 VAC, 50 to 60 Hz, 150 Watts Maximum with 10 W BUC
Operating Temperature 0 to 50° C, 95% Humidity, Non-Condensing
Storage Temperature -20 to 70°C, 99% Humidity, Non-Condensing
Physical
Size 19”W x 19.25”D x 1.75”H

(48.26 x 48.89 x 4.45 cm)
Weight 8.5 pounds (3.83 kg)

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