Transmodulator 2xDVB-T/T2/C - 2xDVB-T (COFDM) TTX-420 FTA TERRA

Kód zboží: R81616

13370,02 Kč

Cena bez DPH	Cena s DPH	Sleva	Množství	platnost
11049,60 Kč	13370,02 Kč	0 %	od 1 ks.

od 0,00 Kč

Dostupný

TERRA TTX-420 R81616 transmodulator is used for reception of DVB-T/T2/C signals and for change of their parameters (regeneration, filtering, retransmission in different RF channels etc.) according to the needs of the project. The device can receive whole sets of channels from two free-to-air DVB-T/T2/C multiplexes and convert them into two neighboring DVB-T multiplexes with maximum data rate allowed by the DVB-T standard, i.e. 31.68 Mbps. In practice, each multiplex can carry 6 SD channels or 2-3 HD channels. The administrator of the system selects the required channels from the satellite input streams and forms two DVB-T multiplexes. Alternatively, one DVB-T multiplex can be programmed from channels coming from two different DVB-T/T2/C multiplexes.

• Konverze signálu DVB-T/T2/C ze 2 MUX na 2 multiplexy DVB-T COFDM
• Volba provozního režimu: transparentní nebo multiplexovaný
• Výběr kanálů a filtrování nepotřebných služeb v digitálním toku,
• Ovládání přes port RJ-45, což značně zjednodušuje instalační postup
• Správa internetu
• Čtení historie událostí (protokolů) z panelu
• Funkce AGC (automatické řízení zesílení signálu)

Nabídka: Transmodulatory Články: O anténách TV-SAT (3), Domovní instalace (5), SMATV systémy (15), Instalační součásti (13), Projektování (4), Poměr (4), Schémata (13), Trochu teorie (12), DVB-T a DAB (9), KPR (1), HDMI (3).

Záruka

Záruka 4 roky.

Podpora

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Podrobný popis

Transmodulátor pouze mění přenosový standard z DVB-T/T2/C na standard DVB-T. To znamená, že RF výstup má stejný kodek jako vstup. To znamená, že transmodulátor nezmění kódovací systém ze standardu HEVC na H.264..

The application of TTX-420 R81616 transmodulator allows for distribution of digital TV channels in situations when the signal received by the antenna cannot be directly amplified or converted to a different frequency due to high BER and low MER levels. It happens in areas with low signal quality.

The regeneration process consists of receiving the DVB-T/T2/C signal, demodulating it to the transport stream, and then re-modulating RF signals as a new COFDM multiplex (frequency converter function). MER (modulation error rate) at the output of the device is not lower than 35 dB, which allows for the distribution of the digital multiplex even in very large MATV systems.

The device can operate in two modes:

transparent mode - the decoded transport stream is not modified and is directly applied to the COFDM modulator - without PID filtration;
multiplexing mode - the device examines the decoded transport stream (measures the bit rate, updates SI arrays) and optionally filters programs and services.

Thanks to RJ-45 Ethernet port, the programming of the TTX-420 R81616 panel is performed via a web browser.

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

IPTV streamers for management and distribution of satellite, terrestrial and cable DVB channels within Ethernet (LAN) networks based on twisted-pair cabling,
optical transmitters for transmission TV programming via optical links,
other receiving and signal processing devices (broadband and channel amplifiers, analog and digital modulators).

Customers can also order DVB-T/T2/C--> DVB-C (QAM) transmodulators:

DVB-T/T2/C to 2xDVB-C (QAM) Terra TTQ-420C (two CI slots)
DVB-T/T2/C to 2xDVB-C (QAM) Terra TTQ-420

The R81616 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.

Výrazné vlastnosti

conversion of DVB-T/T2/C signals to DVB-T COFDM,
conversion of multiple signals from two DVB-T/T2/C multiplexes to 2 neighboring DVB-T multiplexes,
possibility to create one DVB-T multiplex from two different DVB-T/T2/C multiplexes,
transparent regeneration of DVB-T/T2/C stream (without changing the structure or services);
change of the RF channel of DVB-T multiplex(es),
selectable channels and services in output stream (in multiplexing mode)
easy control via RJ-45 port,
management via the Internet,
access to event history (logs),
automatic gain control (AGC).

View of the information window of TTX-420 R81616 module

(among others: input level, SNR, VBER parameters)

IPTV Streamer: TERRA sdi 480 (DVB-S / S2 na IP, USB port)

Selection of channels and filtration of services

With these parameters, the maximum bandwidth of each of the two DVB-T multiplexes
is 31.68 Mbps, in compliance with the DVB-T standard

The percentage of the usage of the available bandwidth in each multiplex

Set of ttx410C R81615 and tdx410C R81617 transmodulators used in an SMATV system. For the reception of pay-TV channels it is necessary to install suitable conditional access module.

Specifikace

Typ zboží			Transmodulator
Název			ttx420
Značka			TERRA
Conversion			DVB-T/T2/C--->DVB-T
RF input			2
	Number of F-connectors		1
Channels			Ano
Channels			Ne
Technical specifications
RF input		MHz	47...862
	DC 12 V/0,1 A
	DVB-T/T2/C
	DVB-T: QPSK, QAM16, QAM64, DVB-T2: QPSK, QAM16, QAM64, QAM256, DVB-C: QAM16, QAM64, QAM128, QAM256
	MHz	7, 8
	Ms/s	1...7,2 for DVB-C
	dBµV	40...80
	Ω	75
	dB	-1 ± 1
RF output			DVB-T/ISDB-T
RF output	Number of DVB-T MUXes		2 (nearby)
	DVB-T: QPSK, QAM16, QAM64, ISDB-T: QPSK, DQPSK, QAM16, QAM64
	MHz	100...858, step 100 kHz
	dBµV	90
	dB	0...15 with step 1 dB
	Ω	75
	MER	dB	≥38 (100...780 MHz), ≥35 (780...860 MHz)
	MHz	7,8
	1/4, 1/8, 1/16, 1/32
	FEC		1/2, 2/3, 3/4, 5/6, 7/8
	2K
RF output		Mbps	2 × 31,67
RF combiner		MHz	47...862
RF combiner			F
General
Configuration			RJ-45 (web browser)
Configuration			192.168.1.10
	Ano
Current drawn		V/A	DC 12/0.65
Provozní teplota		°C	0...+50
Hmotnost		kg	0,9
Rozměry		mm	48,5 × 198 × 112