The DVB Consortium is developing a filecasting mechanism that will enable broadcast networks to be used for the mass distribution of files via IP multicast transmission. The solution extends the application of the DVB-MABR (Multicast Adaptive Bitrate) and DVB-NIP (Native IP) standards beyond traditional audio-video stream distribution....

Installing a 120 cm diameter satellite dish on a counterweight mast is a practical solution wherever it is not possible to permanently fix the structure to the building. This applies primarily to flat roofs covered with roofing felt or a roofing membrane, where any interference with the roof surface could damage the waterproofing layer....

In conference rooms, there is often a need to display the same image on several screens simultaneously. For example, the image from the computer running the presentation needs to be visible on the main monitor or projector, as well as on additional screens situated further back in the room. In a traditional setup, this requires the use of an HDMI splitter and running separate cables to each display. However, in existing or refurbished rooms, installing additional cabling can be troublesome or e...

When installing a video-intercom system, it is sometimes necessary to install additional functions to notify the user that someone has pressed the call button on the door station. An example can be installation of the system in a noisy production hall, using it by a person with impaired hearing , or a need to install signalling outside the house, so that being in the garden you would notice that someone has come....

The ‘sensitivity’ parameter determines the point at which the camera decides that lighting conditions are too poor to operate in colour and switches from day mode to night mode, i.e. black and white using infrared or white light. In practice, the higher the sensitivity value – for example, 6 or 7 – the faster the camera reacts to a drop in light levels. It may therefore switch to night mode even when the image is only slightly dimmed. With a lower setting, the camera remains in colour mode for ...

The coding and interpretation of fiber optic cables is quite a challenge for installers, as well as for those involved in fiber optics business. The difficulty has to do with the complexity of cable coding (usually composed of many letters), the lack of knowledge on how to interpret specific codes, as well as the simultaneous presence of two different coding practices, i.e. the European DIN/VDE standard along with another standard used locally. In Poland, for instance, it is based on the standa...