alanh, on Feb 1 2007, 07:00 PM, said:
Dig etc are taking some of the capacity of the TV signal for sound only channels. The transmissions are on any channel from channel 6 - 69. You must use a STB.
DMB is designed for portable receivers just like radios now, but with an optional screen. The transmissions are optimised for reception in the presence of reflected signals which is typical of car radios and personal receivers. You get 4 separate transmitted channels in the space of a TV channel. Each DMB channel can carry at least 5 programs with some pictures added. So this is 20 programs in the space where you may get a maximum of 2 if piggybacked on TV.
The map you are looking at is using a 5 kW transmitter, where as the TV channel you are using is 50 kW.
So this is big, like when FM was first coming in and 2JJ got another J (yeah I'm that old).
I imagine it will be some time before I'll get a new car radio, but on the other hand DVD players are $39 at ALDI and VHS tapes are starting to vanish from the shelves.
In the meantime, while the government, the broadcasters, the manufacturers, other countries et al are determining what we get, do you think they'll add any DVB audio stations?
Finally what range/power will the eventual standard have? I get FM and DVB 150km from Sydney and would expect at least the same.