Twin Transmodulator DVBS/S2 – DVBC (QAM Annex A) Televes

Transmodulator that generates two QAM (DVB-C) Multiplex from the services available in either a TV SAT transponder or two transponders of the same band and polarization.
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)
Features
Null packet insertion (?Stuffing?) allows the receiver (STB) to perform a faster scan
S_ID editable to prevent the receivers (STB) in an installation from retuning when the output-Multiplex’s services are modified
PID filtering allows the removal of undesired services inside a Multiplex (enhanced occupation use)
Editable Network_ID, Original Network_ID and Cell_ID allow the control of network identifiers
Specifications
SAT INPUT SAT Input frequency MHz 950…2150
Frequency steps 1
Input loop loss dB ? 1.5
LNB supply Vdc 13V/17V/ OFF – 22KHz (ON/OFF)
Satellite selection (DiSEqC) A, B, C, D
Return loss dB > 10
input impedance ? 75
DVB-S
DVB-S2 Symbol rate (Modulation) Mbaud 2 – 45
FEC inner code LDPC (1/2, 2/3, 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 1 – 7.2 (selec.)
Scrambling DVB EN 300429
Interleaving DVB EN 300429
Convolutional code (FEC) RS (188, 204)
Roll-off factor % 15
Spectrum Normal, Inverted
Bandwidth MHz 8.3 m?x.
RF Output frequency MHz 46…862
Frequency steps KHz 250
Maximum output level dB?V 80 ? 5 t?p.
Adjustment range dB >15
Output loop-through losses ? 1.5
Spurious level dBc > 60 t?p.
Output impedance ? 75
GENERAL Power supply Vdc 24
Consumption mA 470 sin LNB
Protection index IP 20