Satellite Broadband Supplier

iamlegend2008

Hi

I saw this article and thought it may be of interest to those who require satellite broadband.

http://www.theregister.co.uk/2009/05/01/eutelsat_launch/

Cheers

crawler

Same one in Ireland also

http://www.enn.ie/story/show/10125165

The Irish Times reports that European firm Eutelsat is to offer its Tooway satellite internet service to consumers in Ireland, which promises similar speeds and costs to ADSL. The Tooway service is delivered through a small satellite dish and a modem connected to the PC via Ethernet. Prices for the service currently start from EUR25 per month. Local distributors Satellite Broadband Ireland (SBI) and Digiweb will sell the Tooway product. SBI said it expects to create more than 20 new jobs on the back of the new service.

Sponge Bob

S band or Ka , I am not up on my launches Crawler ...

S Band could be very messy in Ireland what with rurtel and wifi to think of

watty

Ka (20GHz ish downlink instead of 11.7GHz ish of existing vsat)
This Ka sat has about 1000x capacity of a 5 or 8 year old Ku sat.

It's more likely to get launched and positioned than Avanti's Hylass1, (an experimental lower capacity version of similar thing) which might get launched on experimental Falcon9.

Eutelsat tend to use more established launch tech.

Tooway is already here on Ku. The Ka product *might* be a smaller dish. Same 792ms minimum latency.

S band and L band are lower capacity.


Ka = above K band
Ku = under K Band

crawler

there are a pile of launches soon SB so not surprised!

To be honest S band , Ka and Ku will all work fine in my view....I also think there will be no issue with Hylas one....the more the better is my thinking.

More stuff here http://www.siliconrepublic.com/news/article/12871/comms/eutelsat-to-invest-7m-in-irish-broadband-rollout

I think they are saying that they are deploying a hub station in Ireland which is a good thing too.

watty

You're not offering insurance on Hylass though crawler.

Johnboy1951

watty wrote: »

Ka (20GHz ish downlink instead of 11.7GHz ish of existing vsat)
.......

Tooway is already here on Ku. The Ka product *might* be a smaller dish. Same 792ms minimum latency.

I am wondering how they are proposing to overcome that latency when offering 'low-latency' services such as VOIP?

"The Tooway service offers two-way satellite access to users, without the need for a telephone line, delivering speeds of 2Mbps on the downlink and 256Kbps on the uplink.
The service is also triple play-ready, allowing distributors to offer additional TV and IP telephony services using the same equipment."

ArseBurger

Johnboy1951 wrote: »

I am wondering how they are proposing to overcome that latency when offering 'low-latency' services such as VOIP?

Ever made an international phone call? Odds are part of the path is over satellite.

watty

ArseBurger wrote: »

Ever made an international phone call? Odds are part of the path is over satellite.

Historically. Not so likely today. Also at the exchange your call is split into outgoing and incoming paths. The ITU regulations are that the satellite to be only used on one path, not both, to halve the latency.


I've used VOIP on satellite. It can be Ok. A problem if the other person is on Satellite too (1.5 second latency minimum).

There is quite low latency on ISDN conversion and it's a fixed speed frame. The problem with VOIP is that it has to have a larger buffer at each end (because of jitter) and the codecs are often higher latency due to software implementation. Adding all those is not good. The Tooway folk I believe are implementing a minimum buffer and QOS for VOIP to ensure jitter is low, possibly a modem with built in codec and ATA / POTS port to have the overall latency as close to the 790ms minimum possible. With arbitrary PC based buffer/Codec and no QOS you can easily add another 450ms.

So yes, I think Dedicated VOIP on satellite (as long as the other party is NOT on VSAT too) can be just workable.

In contrast with EDGE/3G/HSDPA the latency can go from 70ms to 2000ms during a call. Jitter is huge, especially on a busy sector. Generally VOIP is only going to be acceptable for 20% of HSPA users. LTE and Mobile WiMax are far better for VOIP than 3G. However still very inefficient use of spectrum and bandwidth and erratic quality compared to a voice call.

Johnboy1951

watty wrote:

The Tooway folk I believe are implementing a minimum buffer and QOS for VOIP to ensure jitter is low, possibly a modem with built in codec and ATA / POTS port to have the overall latency as close to the 790ms minimum possible.

Sounds like they might have the ability to set it up for their own VOIP offering but that it may not be available to the user who wants to use a different service.

Thanks for the details.

regards.

watty

Skype or Blueface etc would be poorer

Johnboy1951

watty wrote: »

Skype or Blueface etc would be poorer

That is what I had in mind.

Stan 10

I seen these prices on PC Pro website.

"Such technology comes at a price: the satellite will cost "below £400" according to Patacchini, while the broadband service starts from £30 a month from a selection of local distributors".

These are prices for England so can we expect even higher prices here.

Stan