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Componentes Instalação

Hotel TV systems - headends and amplifiers
One of the criteria for classification of TV systems in hotels is the programming to be distributed. The simplest systems may provide only free-to-air terrestrial TV broadcasts, whereas more advanced solutions will include satellite channels, also some premium ones (pay-TV). The content required by the owner/investor will depend on the categories of prospective hotel guests (foreign and thematic channels etc).
Transmission and distribution of HDMI signals
HDMI is now the most commonly used connector in sources of different kinds of multimedia content. In situations where there is a need to send an HDMI signal at a distance greater than 30 meters (maximum length of HDMI cables), or in a place where such a cable cannot be installed, it is reasonable to use the appropriate media converter that allows the transmission of the signal from the HDMI source using other type of transmission cable, more suitable for that application.
Digital DVB-T moduladores - variedade e aplicações
Conversão de baseband sinais de áudio e vídeo (A / V) em rádio frequência (RF) canal é chamado de modulação. Este processo permite a distribuição dos sinais provenientes de todos os tipos de fontes, tais como computadores, aparelhos de DVD, câmeras de segurança, etc, através de sistemas de antena. O aparelho utilizado para esta finalidade (modulador) está equipado com um par ou conjunto de A / V entradas (SCART, RCA, HDMI) e saída de RF. O sinal de saída injectado no sistema de antena está disponível na rede de distribuição de canais de televisão adicional (multiplex ou - ...
TERRA multiswitches - nova qualidade de sistemas de SMATV
TERRA produtos dedicados para sistemas de antenas compartilhadas são equipamentos de primeira classe com uma garantia de quatro anos. Redes de distribuição baseados em SMATV estes dispositivos asseguram o funcionamento fiável durante um longo tempo.
Multiswitch sistemas Profissional
Artigo sobre instalações multiswitch pequenas, médias e grandes empresas. Como escolher multiswitches adequada e cabeamento. Uso de sistemas multiswitch para distribuir sinais de televisão terrestre.
Multiswitch instalações permitem distribuir programas de satélite e terrestres para muitos usuários, sendo uma das formas de dominar os sistemas de TV via satélite antena (SMATV). Sistemas comunitários são geralmente mais fiáveis, e garantir melhor qualidade, devido ao melhor equipamento profissional. Começa a partir da antena parabólica - pelo menos 110 centímetros, ...
Choosing a multiswitch...
The choice of a multiswitch depends on the number of users, received satellites and bands, and employed converters (LNBs). We have worked out table and diagrams, which are useful for those who want to crystallize their plans of building SMATV system. As example multiswitches we mainly present Terra devices, although the instances given can be considered as a general concept.
Satellite converters - LNBs
Satellite converter (often called LNB - Low Noise Block) is the device used for amplification and transition of signals from the ranges 10.7-11.7 and 11.7-12.75 GHz into the band of first intermediate satellite frequency (IF - 950-2150 MHz).
Amplifiers in Antenna Installations
Antenna amplifiers, channel amplifiers, building amplifiers, multi-input amplifiers, band amplifiers, RF amplifiers, preamplifiers.
Theory and use of channel amplifiers
A common problem that is encountered in terrestrial TV antenna installations is unbalance of the level of received channels, often about 10-20 dB. In case of small installations (5-20 outlets) such a difference (not recommended) usually doesn't make any trouble yet. It is the real problem for bigger installations, where the difference of levels at the input is increased by inconstant (being a function of frequency) attenuation of cables and may easily exceed (in an outlet) the accepted limit (12 dB) all over the band.
Audio - Video modulators
Modulators are used for distribution of audio/video signals from different sources (cameras, SAT receivers, DVD players etc.) via the existing antenna installations. The signal coming from a modulator can be received by any TV receiver.
SIGNAL - Taps, Splitters, Outlets
PDF guide on the rules of selecting passive distribution components in antenna installations (individual, MATV, SMATV). So far available in Polish.
Splitters and taps
To ensure proper S/N ratio, the isolation between any two receivers should be at least 50 dB.When the receivers are connected to the same tap, the isolation depends on the Ao, A, and As attenuation, and the lengths of the cable between tap outputs and subscriber outlets.