Light ain't fast enough

**redpigg** · 05-01-08, 08:48 AM

We have satellite broadband a ping takes over a second.

The VOIP quality was terrible.

One thing puzzles they don't have undersea cables any longer so when
one rings Uk/US how does the signal get there?

**ssrattus** · 05-01-08, 10:35 AM

they still have undersea cables.

**anythn_electron** · 05-01-08, 12:03 PM

it's some old technoligy called satlites there are more of them now days for any application emaginable also phone companys use them even for you to make a call from a land line to another land line to oversea's country's

**antus** · 05-01-08, 09:11 PM

sat broadband is renowned for its latency. You can still transfer a file fast, but as you say the ping times make it unsuitable for voip.

One of the main links for australia though is the southern cross cable. Lots of interesting reading on its site. Its currently runing and 240gbps and they say can be upgraded to 2.4tbps. I think it introduces about 120ms lag from one end too the other. There is no way to send data faster around the world, even a PSTN international phonecall introduces some noticable audio lag.

http://www.southerncrosscables.com/

**TZB** · 06-01-08, 01:12 AM

There wouldn't be much International IP traffic going over satellite links these days. Can't you get ADSL or cable? (you don't have your location filled in) You're always going to get bad latency over a Sat connection.

**biggeorge** · 08-01-08, 05:07 PM

The only thing faster than light/radio/electricity is by using a sub-space transmitter like the ones in star trek.

Unfortunately with satellite you will always get lag, so voip, games, even surfing will be laggy but lightning fast for large data packets such as big downloads.

It's the nature of the beast. You're worse off on dial-up.

**Studio1** · 09-01-08, 07:41 AM

oversea's country's ??

**vk3hsv** · 10-01-08, 08:32 AM

the satellite links take 250 milliseconds up to down link so this is the biggest problem. Even sat phones have a massive lag time when you are talking.

**tytower** · 13-01-08, 05:09 PM

It goes 32,000 klms up gets relayed then 32000 klms down then the answer does the same trip again .

128,000 klms all up around 2 seconds delay I work on.

Code:

[tytower@localhost ~]$ ping 10.16.26.9
PING 10.16.26.9 (10.16.26.9) 56(84) bytes of data.
64 bytes from 10.16.26.9: icmp_seq=1 ttl=63 time=0.885 ms
64 bytes from 10.16.26.9: icmp_seq=2 ttl=63 time=1.74 ms
64 bytes from 10.16.26.9: icmp_seq=3 ttl=63 time=1.23 ms
64 bytes from 10.16.26.9: icmp_seq=4 ttl=63 time=0.944 ms
64 bytes from 10.16.26.9: icmp_seq=5 ttl=63 time=0.885 ms
64 bytes from 10.16.26.9: icmp_seq=6 ttl=63 time=0.884 ms
64 bytes from 10.16.26.9: icmp_seq=7 ttl=63 time=0.885 ms
64 bytes from 10.16.26.9: icmp_seq=8 ttl=63 time=0.883 ms
64 bytes from 10.16.26.9: icmp_seq=9 ttl=63 time=0.880 ms
64 bytes from 10.16.26.9: icmp_seq=10 ttl=63 time=0.904 ms
64 bytes from 10.16.26.9: icmp_seq=11 ttl=63 time=0.885 ms
64 bytes from 10.16.26.9: icmp_seq=12 ttl=63 time=0.884 ms
64 bytes from 10.16.26.9: icmp_seq=13 ttl=63 time=0.881 ms
64 bytes from 10.16.26.9: icmp_seq=14 ttl=63 time=0.877 ms
64 bytes from 10.16.26.9: icmp_seq=15 ttl=63 time=0.902 ms

**Keepleft** · 03-02-08, 01:33 PM

Quote:

Originally Posted by Studio1

oversea's country's ??

You know, TASMANIA.

05-01-08, 08:48 AM	#1 (permalink)
redpigg Junior Member iTrader: (0) Join Date: Jan 2008 Posts: 3 Spent time on board: -	Light ain't fast enough We have satellite broadband a ping takes over a second. The VOIP quality was terrible. One thing puzzles they don't have undersea cables any longer so when one rings Uk/US how does the signal get there?

05-01-08, 12:03 PM	#3 (permalink)
anythn_electron Junior Member iTrader: (0) Join Date: Jan 2008 Location: Bell Park / Geelong victoria Posts: 18 Spent time on board: 3:37:01	it's some old technoligy called satlites there are more of them now days for any application emaginable also phone companys use them even for you to make a call from a land line to another land line to oversea's country's __________________ I volunteer with steamrail in maintance through to marketing and organiseing of a vintage train tour with vintage steam, diesel and electric trains and it's carrages that were once used in the victorian railways from late 1800's to current V / line service. we also run tours and charters all over the victorian broad gage rail network. visit www.steamrail.com.au for more info

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05-01-08, 10:35 AM	#2 (permalink)
ssrattus Super Moderator iTrader: (0) Join Date: Jan 2008 Posts: 1,368 Spent time on board: 1 Month, 0 Weeks, 4 Days and 6:29:00	they still have undersea cables.

05-01-08, 09:11 PM	#4 (permalink)
antus r3v3r53 3ng1n33r iTrader: (0) Join Date: Jan 2008 Location: IDA Posts: 18 Spent time on board: 3:04:17	sat broadband is renowned for its latency. You can still transfer a file fast, but as you say the ping times make it unsuitable for voip. One of the main links for australia though is the southern cross cable. Lots of interesting reading on its site. Its currently runing and 240gbps and they say can be upgraded to 2.4tbps. I think it introduces about 120ms lag from one end too the other. There is no way to send data faster around the world, even a PSTN international phonecall introduces some noticable audio lag. http://www.southerncrosscables.com/

06-01-08, 01:12 AM	#5 (permalink)
TZB Member iTrader: (0) Join Date: Jan 2008 Location: Canberra Posts: 88 Spent time on board: 1 Day and 11:23:15	There wouldn't be much International IP traffic going over satellite links these days. Can't you get ADSL or cable? (you don't have your location filled in) You're always going to get bad latency over a Sat connection.

08-01-08, 05:07 PM	#6 (permalink)
biggeorge Huge Member iTrader: (0) Join Date: Jan 2008 Location: Super Duper Secret Members Forum Posts: 298 Spent time on board: 1 Day and 23:00:39	The only thing faster than light/radio/electricity is by using a sub-space transmitter like the ones in star trek. Unfortunately with satellite you will always get lag, so voip, games, even surfing will be laggy but lightning fast for large data packets such as big downloads. It's the nature of the beast. You're worse off on dial-up.

09-01-08, 07:41 AM	#7 (permalink)
Studio1 Senior Member iTrader: (0) Join Date: Jan 2008 Location: Inside the toaster Posts: 540 Spent time on board: 4 Days and 3:48:54	oversea's country's ??

10-01-08, 08:32 AM	#8 (permalink)
vk3hsv Junior Member iTrader: (0) Join Date: Jan 2008 Location: horsham Posts: 4 Spent time on board: -	the satellite links take 250 milliseconds up to down link so this is the biggest problem. Even sat phones have a massive lag time when you are talking.

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