[LINK] Gillard announced a $620 million deal for two NBN broadband satellites.
tomk at unwired.com.au
Wed Feb 8 22:21:24 EST 2012
I'm reluctant, because I'm afraid no-one can handle the truth, but here
Current Optus speeds top out at 12 Mbps using C-Band.
The new Optus D-3 satellite was to have KA-Band, but only as a
directional telemetry beacon and not for user data...
Basically it is a rebuild of the D series Satellites and has 16
transponders with around 30 MHz each. Each Megahertz equals approx 6
Therefore, during the daytime (with full sun on the solar panels it can
manage around 2.8 Gbits per.)
At night, as all those people who were on D2 before D3 went up are
aware, the bandwidth disappeared about 10:30 at night. Late twilight
caused by Sundown time +36K kms distance from earth.
PARIS - Space Systems/Loral will build two Ka-band broadband satellites
for Australia's government-owned NBN Co. following a long competition
that featured many of the world's satellite and ground hardware
manufacturers, according to industry officials.
So with KA band, we have around 1.3 GHz of Spectrum available, depending
on the transponder configuration, the potential should be around 18720
Gbits but split over several "areas" or footprint zones.
I am guessing 24 transponders (limited by the number of solar panels
available for maximum EIRP) So I guess if the Satelite is for 3% of
Australians to use then each will get approximately 260 kbps (in 2015)
during the day time, if they're all on at once AND the pop hasn't
exceeded 24 million.
Night time will be about 250 kbps, slowly decreasing over the life of
the batteries to 0 bps by the end of year three.
Linkers would remember the discussion we have on here a few months ago
in relation to KA band JAXA KizunnaWinds delivering a healthy 155 Mbps
to rural users in Japan.
That was with different transponder configuration and batteries that
only had to last for a few months in a trial.
Ignoring the Liblab fundamental difference in policy, Malcolm is partly
right with his comments. With the existing and proposed satellites we
have excellent coverage options (except in valleys and cities) but
unfortunately, coverage does not necessarily mean throughput.
We need KA band, not S, C, L, X, or Ku band.
127 71 E planned Eutelsat W5A Eurostar-3000
Eutelsat Communications S.A. TBD 5000 1-Sep-2012 - 30-Dec-2012
48 Ku-band transponders to provide Voice/data networks, Broadband
applications, Governmental services and Professional Video services to
Europe, Middle-East, Central Asia, Far East/Australia and Central Africa
131 72 E planned Intelsat 22 (IS-22)
BSS-702MP Intelsat, Ltd. Baikonur Cosmodrome 6400
1-Jan-2012 - 30-Jun-2012 24 C-band transponders, 18
Ku-band transponders transponders for commercial use, as well as 18
Ultra-High Frequency (UHF) transponders to provide service to the
Australian Defence Force
238 164 E planned Optus 10 LS-1300 Optus
Communications TBD 3200 30-Dec-13 24 Ku-band
transponders to provide high quality broadcast services to households,
and twoway voice and data communication services to areas in and around
Australia and NZ
240 166 E planned Intelsat 19 LS-1300
Intelsat, Ltd. Sea Launch (Odyssey) 1-Apr-2011 - 30-Jun-2012
24 C-Band and 34 Ku-Band transponders to provide telecommunication
services and enhanced distribution of content throughout Asia-Pacific
region with reach to the Western United States, Australia and New
I do however see Jabiru 1, an Australian initiative that points at
Africa because it couldn't get enough business in Australia.
92 46 E planned Azerspace (Africasat 1A) Star-2.4 Bus
MEASAT Satellite Systems Sdn. Bhd. TBD 3250 30-Dec-13
36 transponders (C+Ku band) to provide services to Azerbaijan, Central
Asia, Europe and Africa
Which signed a lucrative contract for 180 million the other day with an
What a shame that Australian companies can't get Government support. Is
it any wonder all our jobs are going offshore ?
I would really like the Prime Minister to tell us why the contract
couldn't go to an Australian Firm.
Especially one that is listed on the ASX, has predominantly Australian
shareholders and would have provided additional Australian jobs.
Disclaimer: I have no interest in Newsat.
> -----Original Message-----
> From: link-bounces at mailman.anu.edu.au
> [mailto:link-bounces at mailman.anu.edu.au] On Behalf Of Nick Ross
> Sent: Wednesday, 8 February 2012 8:29 PM
> To: Jan Whitaker; Link at mailman.anu.edu.au
> Subject: Re: [LINK] Gillard announced a $620 million deal for
> two NBN broadband satellites.
> Seconded. Anyone know anyone?
> On Feb 8, 2012 8:25 PM, "Jan Whitaker" <jwhit at melbpc.org.au> wrote:
> > At 07:53 PM 8/02/2012, Kim Holburn wrote:
> > > > Opposition communications spokesman Malcolm Turnbull says there
> > > is no need for the new satellites.
> > > >
> > > > "There is more than enough capacity on existing satellites and
> > > satellites that are scheduled to be launched already," he said.
> > Does anyone follow the satellite capacity figures here to know how
> > true this statement is? I don't trust Turnbull any more. I
> think he's
> > swallowed Abbott's Koolaid so he keeps his seat and front bench
> > position. I heard him on 7.30 tonight and he was continuing on the
> > party line, of course.
> > Jan
> > Melbourne, Victoria, Australia
> > jwhit at janwhitaker.com
> > blog: http://janwhitaker.com/jansblog/
> > business: http://www.janwhitaker.com
> > Our truest response to the irrationality of the world is to
> paint or
> > sing or write, for only in such response do we find truth.
> > L'Engle, writer
> > _ __________________ _
> > Link mailing list
> > Link at mailman.anu.edu.au
> > http://mailman.anu.edu.au/mailman/listinfo/link
> Link mailing list
> Link at mailman.anu.edu.au
> http://mailman.anu.edu.au/mailman/listinfo/lin> k
More information about the Link