On Tue, Dec 1, 2009 at 12:42 AM, Mauro Carvalho Chehab <mchehab@xxxxxxxxxx> wrote: > Em 30-11-2009 17:13, OrazioPirataDelloSpazio (Lorenzo) escreveu: >> Hi all, >> I'm not a DVB expert but I'm wondering if this idea is feasible: >> For an "amateur" web radio, for what I know, it is really hard to >> being listened in cars, like people do with commercial satellite radio >> [1] . Basically this is unaffortable for private user and this is >> probably the most relevant factor that penalize web radios againt >> terrestrial one. >> >> My question is: is there any way to use the current, cheap, satellite >> internet connections to stream some data above all the coverage of a geo >> satellite? and make the receiver handy (so without any dishes) ? > > Receiving sat signals without dishes? From some trials we had on a telco > I used to work, You would need to use a network of low-orbit satellites, > carefully choosing the better frequencies and it will provide you > low bandwidth. > > This will likely cost a lot of money, if you find someone providing a > service like that. One trial for such network were the Iridum > project. AFAIK, the original company bankrupted due to the very high costs of > launching and managing about a hundred satellite network. Low orbital satellites aren't geo-stationary. Technically speaking, a broadcaster would use only geo-stationary satellites for broadcast services. The basic reason: A broadcaster simply would have rented out a transponder on an existing satellite from a satellite operator, or still: if the broadcaster is a major player, they would have a few satellites of their own to provide coverage over multiple regions, but still: they are indeed geo-stationary satellites (you will need a very large number of satellites to provide services in a low orbital position, similar to the Iridium network, which is not practically feasible for a broadcaster. Even the Iridium network had a hard time taking off!) Regards, Manu -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
