Because the beginning of Television in the late 1920’s the consumer has chosen the network to view by picking a number on the TV such as networks 2 to 13 for VHF and also 14 to 69 for UHF. With the development of cable TV this has actually transformed rather with network alternatives from 2 to about 99. The ordinary consumer has actually come to be extremely comfy with this system. When the market began advancement of electronic TV and also compression they had to develop a new system. The requirement that was created was established by the Advanced Television Standards Committee ATSC.

Since electronic compressed octa air is currently capable of transferring more than one program on a TELEVISION channel it was determined to offer the program a Major channel number and also a Minor channel number divided by duration… For example an electronic program that is continued VHF network 6 would be called 6.1. If there was a 2nd or third program being sent they would be called 6.2 or 6.3. If they were transferred on a UHF channel they would certainly be 45.1, 45.3 as well as 45.7. To make things even more confusing the FCC mandated that TELEVISION stations being sent on Channels 2-6 relocate to an additional frequency. This commonly resulted in a network that was understood for 50 years as Channel 3 to be sent on UHF network 26 however called 3.1 … Very complex indeed.

When these programs were picked up by the local cable firm it had a tendency to get back at much more complicated until the Virtual network numbering system was presented. This is because on a cord system there can have as numerous as 10 or 12 programs continued one network as well as the channel may be unimportant to the program number or conventional channel number. With the introduction of a virtual network number system a number is assigned to a Program despite where the channel is in fact carried on the system. This means the number presented on the TV or Cable box will be in between 2 as well as 999 and also will certainly not have any type of duplicates and also no minor numbers such as a. 1 or.2. The system driver can designate any kind of digital number.