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DVB-S/S2 (8PSK, QPSK) to 8xDVB-C (QAM) Transmodulator: TERRA TDQ-481 (FTA)

Code: R81643

€1052.32

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€1052.32	0 %	from 1 piece

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The tdq481c8xDVB-S/S2 (8PSK, QPSK) - 8xDVB-C (QAM) FTA transmodulator enables the conversion of DVB-S/S2 signals from 8 satellite transponders to 8 DVB-C MUXes.

• DVB-S/S2 signal conversion from 8 satellite transponders to 8 DVB-C QAM multiplexes
• FTA free-to-air programmes
• Reception of 8 satellite transponders and conversion to any 8 DVB-C multiplexes
• Channel selection and filtering of unnecessary services in the digital stream.
• Compatible with dSCR/Unicable multiswitch series
• Control via RJ-45 port, which greatly simplifies the installation procedure
• Internet management
• Reading the history of events (logs) from the panel
• AGC function (automatic control of signal amplification)

Estore: Transmodulators Library: About TV & SAT Antennas (3), In the Home (5), SMATV Systems (15), Installation Components (13), Designing (4), Measurements (4), Diagrams (13), Some Theory (12), DVB-T & DAB (9), CPR (1), HDMI (3).

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Warranty

4-year warranty.

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Details

Terra TDQ-481 R81643 DVB-S/S2 to DVB-T transmodulator is used for reception of DVB-S/S2 (8PSK/QPSK) signals, selection of desired channels and retransmission of them in DVB-C (QAM) format in chosen RF channels. The device allows the user to receive and manage a range of free to air satellite channels. One TDQ-480 R81643 panel can receive channels from eight satellite transponders and convert them into two groups of four neighboring DVB-C multiplexes (with freely selected content), each with maximum throughput of 53 Mbps. In practice, each of the eight multiplexes can carry over ten HD channels. The administrator of the system selects the required channels from the satellite streams and creates eight DVB-C 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 48 Mbps). The output DVB-C QAM 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 TDQ-481 R81643 panel is performed via a web browser.

TDQ-480 R81643 unit is dedicated for receiving FTA satellite channels. In the case of encrypted channels, the suitable model is TDQ-420C R81639.

A great advantage of the Terra device is easy integration with other components:

multiswitches dSCR/Unicable, which enable independent distribution of DVB-S/S2 signal using one cable
with the ttq440 R81622 transmodulator - one panel receives the signal from four DVB-T/T2 multiplexes and then creates 4 adjacent DVB-C QAM multiplexes respectively, enabling reception of 4 digital multiplexes on TV sets equipped with a DVB-C headend
streamers IPTV - enable distribution and management of satellite, terrestrial and DVB cable TV offerings via Ethernet (LAN) based on twisted-pair cable
opticaltransmitters - transmit television signals using fibre-optic medium
devices intended for reception and processing of television signals (channel and broadband amplifiers, analogue and digital modulators)

The R81643 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.

Key features:

converts a DVB-S/S2 signal from eight satellite transponders into 8 DVB-C QAM multiplexes
TDQ-481 creates two independent groups of four adjacent DVB-C multiplexes (8 DVB-C MUXes, each with a maximum capacity of 53 Mbit/s)
built-in remultiplexer - creates DVB-C multiplexes with any programme content
channel selection and filtering of unnecessary services in the digital stream
simple control interface via RJ-45 port, which greatly simplifies the installation procedure
Internet management
reading of event history (logs) from the panel
AGC function (automatic gain control)

View of the information window of TDQ-480 R81643 module

(among others input RF levels, SNR, VBER parameters of eight DVB-S2 streams)

TDQ-480 R81643 transmodulator creates eight DVB-C multiplexes with channels freely selected from eight satellite transponders. The maximum bandwidth of each of the eight DVB-C multiplexes is 53 Mbps.

Example of mounting TERRA headend to CD001 housing with DIN rail BD001 R90001. Additionally, there are the SRM-522 R80522 multiswitch and an Ethernet switch mounted on the ID001 R90003 mounting plate. The whole system has the FD001 R90002 ventilation unit with thermostat added.

An example of SMATV system. Thanks the application of the SRM-522 R80522 multiswitch, the system can distribute satellite channels selected from the whole Ku band (11.7 ... 12.75 GHz).

Add to the Cart items from the diagram

DIPOL offers the following transmodulators of DVB-S/S2 (8PSK, QPSK) signals:

Model	TDX-410C	TDX-420	TDX-420C	TDX-441	TDX-481

Code	R81617	R81618	R81619	R81614	R81621
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	1	2	2	8	8
Output signals	DVB-T COFDM	DVB-T COFDM	DVB-T COFDM	DVB-T COFDM	DVB-T COFDM
Number of MUXes	1	2	2	4	8
Max. bit rate [Mbps]	31.66	2x31.66	2x31.66	4x31.66	8x31.66
CI slot	1x	No	2x	No	No

Configuration of DVB-S/S2 (8PSK, QPSK) - DVB-T (COFDM) TERRA transmodulator (example: tdx-480 R81621)

Specifications

Product type			Transmodulator
Name			tdq481
Brand			TERRA
Conversion			DVB-S/S2--->DVB-C
RF input	Number of supported transponders		8
	Frequency range	MHz	950...2150
	Power supply/control		0/13/18 V & 22 kHz, max. 1 A,DiSEqC 1.0, EN50607, EN50494
	standard		DVB-S/S2
	Modulation		QPSK, 8PSK
	Signal strength	dBµV	55...95
	Impedance	Ohm	75
	RF throughput - gain	dB	-1 ± 1
RF input	Number of F-connectors		2
Channels	FTA (uncoded)		Yes
Channels	Coded (CI slot)		No
Technical specifications
RF output	standard		DVB-C/J.38B
RF output	Number of DVB-C MUXes		8 (2 × 4 nearby)
	Modulation		QAM16, QAM32, QAM64, QAM128
	Frequency range	MHz	96...862
	Signal strength	dBµV	90
	Signal pos. adjustment	dB	0...15 with step 1 dB
	Impedance	Ohm	75
	MER	dB	>40
	Channel bands	MHz	4...8.3
Symbol rate		Ms/s	3.5...7.2
RF output	Bandwidth	Mbps	8 × 53
RF combiner	Frequency range	MHz	47...862
RF combiner	Connector		F
RF combiner	Loss	dB	2.5
General
Configuration	Port		RJ-45 (web browser)
Configuration	IP address		192.168.1.10
Current drawn		V/A	DC 12/1.1
Operating temperature		°C	0...+45
Weight		kg	0.9
Dimensions		mm	48,5 × 198 × 112

Videos

Hotel TV system based on conversion of DVB-S/S2 signals to DVB-T standard

2017-12-20

Digital headends distributing satellite channels converted to DVB-T COFDM form have become popular solutions in hotels. TERRA system has been designed for building TV distribution installations providing signals to standard televisions with built-in DVB-T tuners and allowing reception of terrestrial (DVB-T) and satellite (DVB-S/S2) channels ...

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