Re: Telstra ADSL and Linux, a couple of dumb questions.....
Erik Christiansen <dvalin@internode.on.net> said,
Here in Tecoma (Dandenong Ranges), my ISP (Internode) provides ADSL2+. Is it a rural exchange which would limit it to ADSL1, or the 5 km line length?
Erik
Im practice it would be line length. As far as I am aware ADSL uses line frequecies up to around 1mhz, ADSL 2 to around 2.2 mhz. Special 1.27mm copper carrier cable has a loss at 1.6mhz of around 30db for 5 kilometres. One would expect most customer cable would be around double that. Such a loss would put receive levels for ADSL2 at 5000 metres well down into the noise (-50 to -60dbm). Even for ADSL you would need real good copper cable for it to work at 5000 metres. Lindsay
On 16/06/2014 8:52 AM, zlinw@mcmedia.com.au wrote:
Erik Christiansen <dvalin@internode.on.net> said,
Here in Tecoma (Dandenong Ranges), my ISP (Internode) provides ADSL2+. Is it a rural exchange which would limit it to ADSL1, or the 5 km line length?
Erik
Im practice it would be line length. As far as I am aware ADSL uses line frequecies up to around 1mhz, ADSL 2 to around 2.2 mhz. Special 1.27mm copper carrier cable has a loss at 1.6mhz of around 30db for 5 kilometres. One would expect most customer cable would be around double that. Such a loss would put receive levels for ADSL2 at 5000 metres well down into the noise (-50 to -60dbm). Even for ADSL you would need real good copper cable for it to work at 5000 metres.
Yes at about 4km (cable) from the exchange, I get far too many dropouts on DSL. Here is a 4G test at my home, with the modem/router sitting outside with an extension lead for power: http://www.speedtest.net/my-result/3553122571 It's by far the best speed I have seen here, but I've only got 10GB of data without fixed IP and all data up and down is counted. You can't get those speeds with a 3.5G mobile phone, nor that low latency. According to the Optus maps, I'm not supposed to be able to get 4GPlus here -- one of my friends has seen 80Mb/s from his 4GPlus mobile when visiting Springvale, but he is on a proper business plan and that /may/ translate to higher speeds having greater priority. Cheers A.
On 16/06/2014 9:20 AM, Andrew McGlashan wrote:
According to the Optus maps, I'm not supposed to be able to get 4GPlus here -- one of my friends has seen 80Mb/s from his 4GPlus mobile when visiting Springvale, but he is on a proper business plan and that /may/ translate to higher speeds having greater priority.
Here is his latest test in Sunshine! http://www.speedtest.net/my-result/a/861370721 Give me those speeds [regularly] and DSL/NBN download quota without uploads being counted as well as a static IP and I won't need the NBN. Cheers A.
On 16 June 2014 13:03, Andrew McGlashan <andrew.mcglashan@affinityvision.com.au> wrote:
On 16/06/2014 9:20 AM, Andrew McGlashan wrote:
According to the Optus maps, I'm not supposed to be able to get 4GPlus here -- one of my friends has seen 80Mb/s from his 4GPlus mobile when visiting Springvale, but he is on a proper business plan and that /may/ translate to higher speeds having greater priority.
Here is his latest test in Sunshine!
http://www.speedtest.net/my-result/a/861370721
Give me those speeds [regularly] and DSL/NBN download quota without uploads being counted as well as a static IP and I won't need the NBN.
That's crazy-fast! He must be the only LTE user in the suburb, and lives under the tower or something? With your friend's 93mbit/s, he could blow through a 2500MByte quota in just three and a half minutes, and after that spend $28 per minute on excess data charges (assuming a 4 cent per mbyte charge for excess data). Mobile carriers seriously need to start giving us higher quotas on 4G plans already! :(
On 16/06/2014 6:45 PM, Toby Corkindale wrote:
http://www.speedtest.net/my-result/a/861370721
Give me those speeds [regularly] and DSL/NBN download quota without uploads being counted as well as a static IP and I won't need the NBN.
That's crazy-fast! He must be the only LTE user in the suburb, and lives under the tower or something?
Yes, but he posted another slightly faster one on Facebook a few minutes later, so it wasn't a flook. It also may have to do with being a business plan. With my router and USB stick installed in Brooklyn ... I couldn't match the speeds of his Note 3 from Optus.
With your friend's 93mbit/s, he could blow through a 2500MByte quota in just three and a half minutes, and after that spend $28 per minute on excess data charges (assuming a 4 cent per mbyte charge for excess data).
True, but ON the mobile, he has unlimited data -- tethering is limited to 10GB on his plan. A suspect it might be possible to do some creative routing .. he has found that his Android tablet data isn't counted when he is tethered to his phone, but his other gear is.
Mobile carriers seriously need to start giving us higher quotas on 4G plans already! :(
Absolutely. Mobile phones are the way that carriers, like Hel$tra, get timed local calls and other excessively high costs. Today data is counted up and down on mobiles, but not on many DSL plans (some real competition here, unlike the mobile world). Cheers A.
On 17/06/2014 1:45 PM, Roger wrote:
Today data is counted up and down on mobiles, but not on many DSL plans (some real competition here, unlike the mobile world). Does this also apply to ipads and the like?
It applies to the data service type, not the device itself. Mobile broadband via the mobile phone network in AU is very expensive compared to DSL ... but it has improved over time, it just needs to improve a great deal more. Cheers A.
Mobile carriers seriously need to start giving us higher quotas on 4G
plans already!
This presupposes that: 1. Carriers actually care. 2. Customers have any degree of importance. 3. Someone actually believes there is competition. Jack from Pirates of the Caribbean."Take everything you can and give nothing back." Borg collective? We are the Borg. Dispute is irrational. Borg 4g controls you. Resistance is futile. You will be assimilated. R
Andrew McGlashan writes:
Yes, but he posted another slightly faster one on Facebook a few minutes later, so it wasn't a flook.
*twitch* https://en.wiktionary.org/wiki/flook https://en.wiktionary.org/wiki/fluke
On 17/06/2014 4:13 PM, Trent W. Buck wrote:
Andrew McGlashan writes:
Yes, but he posted another slightly faster one on Facebook a few minutes later, so it wasn't a flook.
*twitch*
https://en.wiktionary.org/wiki/flook https://en.wiktionary.org/wiki/fluke
Okay then, it wasn't a fluke. ;-)
participants (5)
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Andrew McGlashan -
Roger -
Toby Corkindale -
trentbuck＠gmail.com -
zlinw＠mcmedia.com.au