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Fixed signalling, changing a hotel channel grid without having to retune the television sets in every room did you know that...?
Hotels areour bigclients consumers of digital content speak in COFDM format, which they receive via satellite or terrestrial broadcasts. It is also very common for hotels to want to change their channel grid to meet the demands of their guests. Television sets that memorise which channel they are receiving can use different parameters (usually a combination of several, rather than all): transmission frequency, ONID, NID, TS_ID, SID and LCN (if used). If we change any of these parameters when we change the channel grid, it is likely that some TV set or other (it depends on the model/brand) will be unable to tune the new channels automatically. This means that we will have to go into the room concerned and retune the TV manually. For hotels, this is obviously problematic. Aware of this situation and as part of its goal to develop solutions that meet the needs of hotels, Ikusi has developed a solution that allows the installer to change the channel grid of a hotel without having to retune the TV sets in every room by setting the parameters above in the head end.
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Let’s imagine that a hotel wants to receive BBC World. To do so, it installs an Ikusi satellite-COFDM transmodulator (MTI-800) distributing the signal in C21. The installer knows that this hotel changes its channel grid from time to time so he decides to set the signal values like so: ONID: 101, NID:101, TS_ID: 201, SID: 301.
For this feature, which gives users increased flexibility, Ikusi offers a complete range of products (MTI, TGT, MAC) that incorporate the feature of setting DVB signalling.
A few months later, the hotel decides to replace the BBC channel with Al Jazeera. The installer would then have to retune the MTI to receive the new channel and force the other parameters so that they are exactly equal to the ones used in the original installation (output frequency: C21, ONID: 101, NID: 101, TS_ID: 201, SID: 301). If LCN is used, this value needs to be maintained too. Thus, the televisions in all of the rooms would be able to show the new channel without having to be manually retuned, with the consequent time savings and lack of inconvenience to guests.
Javier Larzabal, Ikusi Marketing Department
This feature can also be applied to other uses, such as avoiding having to retune TVs when there are frequency changes in terrestrial broadcasts or showing the hotel’s own content at certain hours of the day, replacing the existing channels without having to enter rooms.
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