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Transmodulatoare

Transmodulator DVB-S/S2 (8PSK, QPSK) - 8xDVB-T (COFDM) TERRA TDX-480 (FTA)
Cod: R81621
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Garanţie - 48 de luni
Compact DVB-S/S2 to DVB-C Headend: Terra S2C16
Compact DVB-S/S2 to DVB-C Headend: Terra S2C16
Compact DVB-S/S2 to DVB-C Headend: Terra S2C16
Views of the DVB-S/S2 (8PSK, QPSK) to 8xDVB-T (COFDM) TDX-480 R81621 transmodulator
Compact DVB-S/S2 to DVB-C Headend: Terra S2C16
View of the included accessories - wall mount, distance lath, RF bridge, termination load resistor
Key features
  • conversion of DVB-S/S2 signals from eight SAT transponders to DVB-T COFDM standard,
  • creation of two independent groups of four neighboring DVB-T multiplexes (in total - eight DVB-T MUXes, each with max throughput of 31.66 Mbps),
  • selectable channels and services,
  • easy configuration and control via RJ-45 port,
  • management via the Internet,
  • access to event history (logs),
  • automatic gain control (AGC).
Terra TDX-480 R81621 DVB-S/S2 to DVB-T transmodulator is used for reception of FTA DVB-S/S2 (8PSK/QPSK) signals, selection of desired channels and retransmission of them in COFDM format in chosen RF channels in VHF/UHF frequency range. The device allows the user to receive and manage a range of free to air satellite channels. One TDX-480 R81621 panel can receive channels from eight satellite transponders and convert them into two groups of four neighboring DVB-T multiplexes with maximum throughput of 31.66 Mbps (no PID filtering). In practice, each of the eight multiplexes can carry 6 SD channels or 2-3 HD channels. The administrator of the system selects the required channels from the satellite streams and forms eight DVB-T multiplexes. In each case, it is neceeesary to remember about 10% safety margin when determining the maximum bit rate for the whole multiplex (typically the ultimate bit rate of a multiplex should not exceed 29 Mbps). The output DVB-T COFDM multiplexes are usually distributed to users by a passive network composed of RF splitters/taps. Such a solution is especially convenient in modern hotel TV systems distributing a variety of satellite channels, including HD broadcasts.
Thanks to RJ-45 Ethernet port, the programming of the TDX-480 R81621 panel is performed via a web browser.
The TDX-480 R81621 unit is dedicated for receiving FTA satellite channels. In the case of encrypted channels, the suitable model is TDX-420C R81619.
A great advantage of the Terra device is easy integration with other components:
The R81621 units can be mounted on the R82538 or R82539 DIN rail (also in a RACK cabinet) and powered from DR-60-12 R82532 or UP413 R82533 power supply.
View of the information window of TDX-480 R81621 module
(among others DVB-S2 input RF levels, SNR, VBER parameters)
Selection of channels and filtration of services
The TDX-480 R81621 transmodulator creates two independent groups of four neighboring DVB-T multiplexes. With these parameters, the maximum bandwidth of each of the eight DVB-T multiplexes is 31.66 Mbps, in compliance with the DVB-T standard.
Specifications:
Name TDX-480 (FTA)
Code R81621
Number of supported transponders8
RF inputs
Frequency range [MHz]         950 - 2150
LNB power and control
  0/13/18 V & 500 mA max, DiSEqC 1.0,
 EN50607, EN50494
Level [dBμV] / Impedance [Ω] 55-95 / 75
RF loop gain [dB] -1 ± 1
StandardDVB-S/S2
Modulation QPSK, 8PSK
Symbol rate [Ms/s] 2...45
Return loss [dB]≥ 10 
Number of inputs
RF output
 
DVB standard DVB-T
Level [dBμV] / Impedance [Ω] 90±2 / 75
Freq. range [MHz]170-230 MHz / 470-862 MHz
Number of DVB-T MUXes
 4 neighboring + 4 neighboring
MER≥ 35 dB
ModulationQPSK, QAM16, QAM64
Channel width [MHz]7 or 8
Guard interval 1/4, 1/8, 1/16, 1/32
FEC1/2, 2/3, 3/4, 5/6, 7/8 
FFT mode
2K 
Output level adj. [dB] 0...-15 (step 1)
Transport  StreamMax. bitrate [Mbps/s]< 31
Service filtering
  Yes
GeneralRF loop (band / loss) 47-862 MHz / ≤ 2.5 dB
Ethernet port (RJ45)
IEE802.3 10/100 Base T
Power [V] / [A] 12 / 1.1
Oper. temperature range [ºC] 0...45
Dimensions [mm] / Weight [kg] 48.5x198x112 / 0.9

 

Satellite Dish INVERTO IDLB-STCF 120cm (light color)Universal QUATRO LNB: Inverto Red Extended 0.3dBSingle-cable dSCR Multiswitch: Terra SRM-521 (class A, passive Terr. TV path)DVB-S/S2 (8PSK, QPSK) to 8xDVB-T (COFDM) Transmodulator: TERRA TDX-480 (FTA)Power Supply TERRA UP413 (12V/4.5A, for Terra modules)Switching Power Supply Terra PS202F (20V 2A, Digital SCR)4-way Tap: FAC-4-18dB (5-1000MHz)4-way Tap: FAC-4-18dB (5-1000MHz)4-way Tap: FAC-4-18dB (5-1000MHz)4-way Tap: FAC-4-18dB (5-1000MHz)
An example of SMATV system. Thanks the application of the SRM-521 R80521 multiswitch, the system can distribute satellite channels selected from the whole Ku band (11.7 ... 12.75 GHz).

DIPOL offers the following transmodulators of DVB-S/S2 (8PSK, QPSK) signals:
 ModelTDX-410C TDX-420  TDX-420CTDX-440  TDX-480
  R81617 R81618R81619 R81638 R81639 
Code
 R81617 R81618R81619  R81614R81621
Input signals
DVB-S/S2
(8PSK, QPSK)
DVB-S/S2
(8PSK, QPSK)
DVB-S/S2
(8PSK, QPSK)
DVB-S/S2
(8PSK, QPSK)
DVB-S/S2
(8PSK, QPSK)
Number of transponders
12288
Output signals
 DVB-T
COFDM
DVB-T
COFDM
DVB-T
COFDM 
 DVB-T
COFDM
DVB-T
COFDM  
Number of MUXes12248
Max. bitrate [Mbps] 31.662x31.662x31.664x31.668x31.66
CI slot
1xNo2xNoNo
Customers can also order DVB-S/S2--> DVB-C (QAM) transmodulators.
Preţ fără TVAPreţ cu TVARabatValiditate  
5140,40 Lei6117,08 Lei0 %
 
Transmodulator DVB-S/S2 (8PSK, QPSK) - 8xDVB-T (COFDM) TERRA TDX-480 (FTA)
Cod: R81621
George Popescu
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