DM240XR Digital Video Broadcast Modulator with AutoEQ

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DM240XR Digital Video Broadcast Modulator with AutoEQ

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  • DVB-S and DVB-S2 ready
  • DVB-S2 data rates up to 190 Mbps
  • DVB-S2 CM, VCM & ACM support
  • DVB-S data rates up to 238 Mbps
  • QPSK, 8PSK, 16-QAM, 16APSK, 32APSK
  • Embedded MetaCarrier DVB-CID ETSI TS 103 129

SKU: CMT110 Tags: , , , , ,
  • Description
  • Technical Specifications
  • Support Documents

Overview

The DM240XR is DVB-S2 ready and can easily be upgraded in the field. The DM240XR provides a comprehensive set of advanced S2 features. The DM240XR extends its dominance in broadcast applications through increased data rate capability and the addition of 16APSK and 32APSK support. Proven performance operating near Shannon’s limit offers results with 30% better bandwidth efficiencies and carrier to noise figures below the noise floor.

The DM240XR includes the ability to select the output frequency of 70/140 MHz or L-Band operation without any hardware modifications. The modulator offers a frequency agile IF output from 50 to 90 MHz, 100 to 180 MHz and 950 to 2050 MHz in 100 Hz steps. The DM240XR offers high data rates (up to 190 Mbps for the DVB-S2 and 238 Mbps for the DVB-S), and the most flexible modulation schemes available (QPSK, 8PSK, 16-QAM, 16APSK and 32APSK).

Details

  • DVB-S and DVB-S2 ready
  • DVB-S2 data rates up to 190 Mbps
  • DVB-S2 CM, VCM & ACM support
  • DVB-S data rates up to 238 Mbps
  • QPSK, 8PSK, 16-QAM, 16APSK, 32APSK
  • Embedded MetaCarrier DVB-CID ETSI TS 103 129
  • Powerful LDPC with BCH coding
  • AutoEQ group delay and amplitude equalization
  • Frequency-agile 50 to 90, 100 to 180, and 950 to 2050 MHz
  • ETSI EN 302 307 (DVB-S2), ETSI EN 301 210 (DVB-S)
  • ETSI EN 300 421 and ITU-1294 System B (DSS)
  • Built-in ASI data interface
  • Monitor port available
  • Web browser user interface
  • Multiple 1:1 and 1:N redundancy options available

Specifications
IF Interface
TX IF 50 to 180 MHz (70/140 MHz)
950 to 2050 MHz L-Band
IF Step Size 1 Hz
Frequency Stability 1 ppm
Power Output 0 to -25 dBm
Power Step Size 0.1 dB
Power Output Accuracy ± 1.0 dB
Power Output Stability ± 0.5 dB
Carrier Mute -55 dB
Spurious -55 dBc, In-band
-45 dBc, Out-of-band
Output Impedance 75 Ohm (70/140 MHz), 50 Ohm (L-Band)
Return Loss 20 dB (70/140 MHz)
14 dB (L-Band)
Phase Noise 1 kHz -73 dBc
10 kHz -83 dBc
100 kHz -100 dBc
1 MHz -120 dBc
Output Connector BNC female (70/140 MHz),
SMA female (L-Band)
IF Monitor SMA female
External Reference 1, 2, 5, 10 MHz better than ±1 ppm,
1.5 to 10 Vp-p, 50 Ohms
MetaCarrier Identification DVB-CID ETSI TS 103 129 Compliant
Baseband (DVB-S) Per ETSI EN 301 210
Data Rate 1 to 238 in 1 bps steps
Symbol Rate 1-68 Msps maximum
Inner FEC Code PTCM (8PSK, 16-QAM), QPSK (Viterbi)
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 (204, 188, T=8)
Interleaving Convolutional, I =12
Data Scrambling Per EN 300-421
Terrestrial Framing 204, 188, none
Baseband (DVB-S2) PER ETSI EN 302 307
Modulation Types QPSK, 8PSK, 16APSK, 32APSK
DVB Modes CCM, ACM, VCM
Data Rate 1 to 80 Mbps in 1 bps steps (QPSK)
2 to 118 Mbps in 1 bps steps (8PSK)
2.6 to 160 Mbps in 1 bps steps (16APSK)
3.5 to 190 Mbps in 1 bps steps (32APSK)
Symbol Rate 1 to 45 Msps maximum
Terrestrial Framing 188 (1 Sync Byte, 187 payload bytes)
Block Size 64800 bits, 16200 bits
FEC Code BCH + LDPC
Interleaver Block Interleaver, Per ETSI EN 302 307
Code Rates QPSK:1/4,1/3, 2/5,1/2,3/5, 2/3, 3/4, 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
32APSK: 3/4, 4/5, 5/6, 8/9, 9/10
Baseband Roll-Off Square root raised cosine 0.10, 0.20, 0.25, 0.35
Terrestrial Input Clock Accuracy Better than 400 ppm
Internal Clock Source Stability 10 ppm
(View our PDF Datasheet for more information)

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