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Comtech Radyne DD240XR Digital Video Broadcast Demodulator

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  • Data rates up to 160 Mbps
  • User friendly front panel interface
  • Optional redundancy configuration
  • Internal Doppler buffer


SKU: SATRES-15151

IF Interface
L-Band Specification (Standard)
Rx IF 950 to 2150 MHz
IF Step Size 1 Hz
Sweep Range 10 MHz
Input Level C0+10 log (Symbol Rate), C0: -130

dBm/Hz to 105 dBm/Hz

-70 to -45 dBm @ 1 Msps

-60 to -35 dBm @ 10 Msps

-53 to -28 dBm @ 45 Msps
Composite Power <-20 dBm total input power
LNB Power 18V +/- 0.5 V, 350 mA max
Input Impedance 75 Ohm
Return Loss 7 dB
Input Connector F Connector
Optional 70/140 MHz Specification (Includes L-Band)
Rx IF 70/140 MHz
IF Step Size 1 Hz
Sweep Range 10 MHz
Input Level C0+10 log (Symbol Rate), C0: -130 dBm/Hz to 105 dBm/Hz

-70 to -45 dBm @ 1 Msps

-60 to -35 dBm @ 10 Msps

-53 to -28 dBm @ 45 Msps
Composite Power < -20 dBm total input power
Input Impedance 75 Ohm
Return Loss 15 dB
Input Connector BNC Female
Baseband (DVB-S)
Variable data rate 2 to 144 Mbps
Step Size 1 bps
Symbol Rate 2 to 45 Msps
(FEC) Decoding
Inner Code QPSK (Vitberbi), 8PSK (PTCM), 16 QAM (PTCM)
Code Rates QPSK = 1/2, 2/3, 3/4, 5/6, 7/8

8PSK = 2/3, 5/6, 8/9

16 QAM = 3/4, 7/8
Outer Code Reed Solomon, Per EN 300-421 (204,188, T=8)
Baseband (DVB-S2) EN 302 307
Variable data rate 2 to 160 Mbps
Step Size 1 bps
Symbol Rate 2 to 45 Msps
(FEC) Decoding
Inner Code QPSK, 8PSK, 16APSK (LDPC)
Code Rates QPSK: 1/2, 2/3, 3/4, 3/5, 4/5, 5/6, 8/9, 9/10

8PSK: 2/3, 3/4, 3/5, 5/6, 8/9, 9/10

16APSK: 2/3, 3/4, 4/5, 5/6, 8/9, 9/10
Outer Code BCH
Deinterleaving Convolutional, I=12, Per EN 300-421
Data Descrambling Per EN 300-421
Terrestrial Framing Modes 204, 188, 187
Internal Clock Source Stability 10 ppm
Internal Doppler Buffer 0 to 64 msec.
Monitor and Control
Interface Serial RS485 (Remote) and SNMP v1, v2, v3, 10BaseT Ethernet
Parameters Controlled IF Frequency

Data Rate

Symbol Rate

Clock Polarity

Data Polarity

Inner Code Rate

Test Modes

Spectral Inversion

Spectral Shape Factor
Parameters Monitored Input Level (+/- 5 dB)

Eb/No (+/- 1.0 dB)

BER

Faults

Stored Faults
Optional Interfaces
Serial G.703, E3, T3, STS-1

DVB ASI

HSSI

RS422/449

ECL
Ethernet PRO MPEG COP3 & Bridge 100/1000 BaseT
Parallel RS422 (M2P, DVB)

LVDS (M2P, DVB)
Environmental
Prime Power 100-240 Vac, 50-60 Hz, 40 Watts Max.
Operating Temperature 0 to 50° C
Humidity Up to 95%, non-condensing
Storage Temperature -20 to 70° C
Humidity Up to 99%, non-condensing
Physical
Size 19" W x 17" D x 1.75" H

(48.3 x 43.2 x 4.45 (cm)
Weight 10 pounds (4 Kg)

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