Skip to main content

New VHF Broadband From CSIRO

CSIRO continues its groundbreaking work in broadband technology. After taking US based computer manufacturers to court to make them pay for Wi-Fi developed by CSIRO, work goes ahead on wireless broadband.

The new system uses ordinary VHF antennas already on rooftops. Smithton in Tasmania is the town chosen for project testing. Terminals were set up on six farms, the furthest one being 8.2 km away from the transmitter. Phone, the Internet and video were tested. A speed of 12 megabits per second was achieved using just one TV channel. VHF channels are soon to be phased out with free to air television moving to UHF.

The new broadband is very efficient. Where television had broadcast using 40 kilowatts per channel, wireless Internet worked perfectly with 3-watt. The technique of "beamforming" was used: multi-user input and spacial division multiplexing output. Work still has to be done to improve downloading capability.

Such an Internet system is of paramount importance to Australia. With such a large country and a low population fiber optics to everyone is not possible. CSIRO is concerned about mobile services getting too much of the VHF band when TV eventually ends. There is not much doubt, however, that successful wireless broadband would be given priority by any government.
. . . . . . . . . . . . . . . . .

Popular posts from this blog

Happy Cow

"Yes, I am content." ✿ Funny Animal Photos contented cow field Adventure Australia Funny Weird Things Articles News Reviews ● ⌘   Vista Computer Solutions Blog   ⌘ ✤ . . . . . . . . . . . . . . . . . . . . . . . .   . . . . . . . . . . cow content happy good life free field paddock green grass milk dairy COW NOT LEAVING HOME

Anthropology Has New Theory on Australian Aboriginals

New theory on Australian Aboriginals - Anthropology. Australian Aboriginals split from Eurasians and moved south into the dry continent. Twenty thousand years later the world warmed up and Australia was cut off from its northern neighbors. This is the latest theory.  But when Europeans initially came to Queensland there were two types of native people. Each was a distinct genetic pool. One was like Papua New Guineans. The other was very slight and shorter. It is the latter that predominates today. Papua New Guineans Australian Aboriginals Some scientists still hold that there was only one move out of Africa. This is an unsustainable supposition. The doors for movement were always open. Australian Aboriginals were quite unique. It seems that they were the first to leave Africa. There is also the question of Tasmanian Aboriginals who were wiped out by arriving Europeans. There is no evidence of them now. They could not light fires. The flames had to be stol...

Natural History Museum Human Evolution Gallery

 The Human Evolution gallery at Natural History explores the origins of Homo sapiens by tracing our lineage back to when it separated from that of our closest living relatives, the bonobos and chimpanzees. Around 200,000 years ago, Africa was where modern humans developed. They have smaller faces and brow ridges, a chin that is more prominent than that of other ancient humans, and a brain case that is higher and more rounded. Modern human fossils from Israel (around 100,000 years old), Africa (around 195,000 years old), and Australia (around 12,000 years old) are among the casts on display. These fossils demonstrate that typical characteristics of modern humans evolved over time rather than emerging fully formed from Africa. They also suggest that at least two waves of people leaving Africa may have occurred, one about 100,000 years ago and the other about 60,000 years ago. We are all descendants of those who left during that second migration wave outside of Africa. Source: Natural...