Transmodulator equipped with remultiplexing
DVBS/S2 – DVBC (QAM Annex A) equipped with CI / Ref. 564401 Twin

Transmodulator that generates one QAM Multiplex from the multiplexing of the services available in up to 3 different TV SAT transponders. These may be extracted from 2 different satellites (2 independent SAT inputs), or from a single satellite, using the headend’s input loop.

Highlights

  • Total or selective removal of the services present in the received transponder, to avoid them being detected (and memorized) by the receivers (STB)
  • Editable TS_ID, which makes programme/service detection easier on the receiver (STB), since the channel scan is based on this identifier
  • LCN (Logical Channel Number) allows the assignment of the services present in the output to an LCN, which makes the ordering of the channels easier on the receivers (STB)
  • Provides information regarding both the occupation of each specific service and the global output occupation, which allows the optimization of the services being distributed
  • Can be remotely controlled using CDC (Headend control)
  • Device monitoring and signal status LEDs

 

Main Features

  • Null packet insertion (“Stuffing”) allows the receiver (STB) to perform a faster scan
  • The encrypted satellite channels are transformed into free terrestrial services through the CI interface and the appropriate CAM module. Depending on the CAM type used (standard/professional), one or several services may be opened for free visualization

SPECIFICATIONS

References 564101/ 03 564401
SATINPUT SAT Input frequency range MHz 950…2150
Frequency steps 1
Input level dBμV 42…82
Loop-through losses dB ≤ 1,5
LNB powering Vdc 13V/17V/ OFF – 22KHz (ON/OFF)
Input return losses (typ.) dB > 10
Input impedance Ω 75
DVB-S Symbol rate (Modulation) Mbaud 2 – 42,5 (QPSK)
FEC inner code Viterbi (1/2, 2/3, 3/4, 5/6, 7/8)
FEC outer code RS (188/204)
Roll-Off factor % 35
DVB-S2 Symbol rate (Modulation) Mbaud 10 – 30 (QPSK, 8PSK)
FEC inner code LDPC (1/2, 1/3, 1/4, 2/3, 2/5, 3/4, 3/5, 4/5, 5/6, 8/9, 9/10)
FEC outer code BCH (Bose-Chaudhuri-Hocquenghem)
Roll-Off factor % 20, 25, 35
DVB-C OUTPUT QAM Modulation (Constellation) 16, 32, 64, 128, 256QAM
Symbol rate Mbaud 6,9
Scrambling DVB EN 300429
Interleaving DVB EN 300429
FEC outer code RS (188, 204)
Roll-Off factor % 15
PCR correction Yes
Services deleting Yes
Network_ID Yes
Original Network_ID Yes
TS_ID Yes
S_ID Yes
LCN Yes
PID Yes
Spectral inversion Normal, Inverted
Channel bandwidth (max.) Mhz 8,3
RF Output frequency 47…862
Frequency steps KHz 250
Output level (max. typ.) dBμV > 80 ± 5
Output level regulation margin dB >15
Output loop-through losses < 1,5
Output return losses (typ.) > 12
Impedance Ω 75
MER dB >40
Output modes normal, CW (Continuous Wave), OFF, NULL
GENERAL Powering voltage Vdc 24
Consumption mA 520 (0 LNB – 0 CAM)
620 (0 LNB – 1 CAM)
870 (1 LNB – 1 CAM)
1120 (2 LNBs – 1 CAM)		 530 (0 LNB – 0 CAM)
630 (0 LNB – 1 CAM)
880 (1 LNB – 1 CAM)
1130 (2 LNBs – 1 CAM)
Protection index IP 20

DOWNLOADS

APPLICATION EXAMPLE

The illustration shows an installation to distribute 20 channels of MUX DVBS2_QAM/COFDM CI T-0X.

ADDITIONAL INFORMATION

Block Diagram