Comtech EF Data DM240XR - Manual (Page 87)

DM240XR High-Speed Digital Modulator Technical Specifications
MN-DM240XR– Revision 13 7–3
0.25
0.35
Terrestrial Input Clock Accuracy: 400 ppm (max)
Test Pattern: Internal 2
15
-1 and 2
23
-1 Pseudo-Random Number
Generators
Consult Factory on ACM & VCM, Multiple Transport Streams and Generic
Transport Streams Input Stream Synchronizer & Null Packet Deletion
7.3.3 DVB-S2-ACM (Normative Features with Single Transports streams)
Compliance ETSI EN 302 307 v1.1.1 (normative)
Modulation Types: QPSK, (8PSK, 16APSK & 32APSK Optional)
Transport Streams Single MPEG Packetized Transport Streams
Data Rate: (QPSK): 1 to 54 Mbps in 1 bps steps
(8PSK): 2 to 118 Mbps in 1 bps steps
(16APSK): 2.6 to 160 Mbps in 1 bps steps
(32APSK): 3.5 to 200 Mbps in 1 bps steps
Symbol Rate: 1 to 45 Msps in 1 sps steps
Terrestrial Framing: 188 (1 sync byte, 187 payload bytes)
Baseband Processing: Per ETSI EN 302 307 v1.1.1
Block Size: 64 Kbits & 16Kbits
FEC Code: BCH + LDPC
Interleaver: Block Interleaver, per ETSI EN 302 307 v1.1.1
Inner Code Rate: (QPSK): 1/4, 1/3, 2/5, 1/2, 2/3, 3/4, 3/5, 4/5, 5/6, 8/9,
9/10
(8PSK): 3/5, 2/3, 3/4, 5/6, 8/9, 9/10 Optional
(16APSK): 2/3, 3/4, 4/5, 5/6, 8/9, 9/10 Optional
(32APSK): 3/4, 4/5, 5/6, 8/9, 9/10 Optional
Baseband Roll-Off Square Root Raised Cosine
0.20
0.25
0.35
Terrestrial Input Clock Accuracy: 400 ppm (max)
Test Pattern: Internal 2 15 -1 and 2 23 -1 Pseudo-Random umber
Generators
Dummy Frame Insertion Yes
IMPORTANT
IMPORTANT