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3 posts

Wannabe Geek


Topic # 58039 5-Mar-2010 01:06
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Hello everyone, firstly i wanna introduce my self for this is my very post in these forums, i'm mike and now down to business if i may please.

I'm just wondering if my current connection with slingshot is similar to anyone else on similar plans in here. I'm not too clue'd up on such matters and was hoping someone here can shed some light on my situation, I will provide information on my connection and why I've come to question it.

What:




  • On Next Big Thing 3









  • This is my line stats using a dynalink rta1320







Line Mode
ADSL2+ 
Line State
Show Time  


Line Power State
L0 
Line Up Time
00:13:14:03 


Line Coding
Trellis On 
Line Up Count



 
Statistics
Downstream
Upstream


Line Rate
7794 Kbps
1125 Kbps


Attainable Line Rate
8826 Kbps
1122 Kbps


Noise Margin
8.9 dB
9.5 dB


Line Attenuation
38.0 dB
19.3 dB


Output Power
19.7 dBm
12.1 dBm








  •  I live on Birkdale Road and from what I gather there is an exchange on Birkdale Road and I am around 2.0 km away from it.







Why: 





  • My friend who is also on slingshot but who is 600 meters from the exchange is getting attainable rates of roughly 15000 kbps (DS) but his Upstream is much lower around 300 kbps with an rta1025w.





  • Before I switched over to the Next Big Thing i used to get 1000kB download speed but now i just get 750kB/s maybe 800kB/s on a good night.





  • Saw a post by a member (CamH) from this thread http://www.geekzone.co.nz/forums.asp?forumid=81&topicid=57724 with his signature pic of 14.42Mb/s download speed.









I've read on other forums (whirlpool) that certain modems with certain chipset can get reach different sync speeds. So I've tried multiple modems namely two rta1320 once with 3.30j & 3.64y firmwares and one dlink dsl-502t gen2 with latest firmware. The results were similar with rta1320 3.30j and the dlink but i got slower speeds with the rta1320 with 3.64y fw.


Slingshot Techies assure me that im on an ADSL2+ connection but it only feels like ADSL2 to me.

I've done Isolation tests on all 3 of our phone jacks with similar results on all 3 modems.

So really i'm just wondering if my connection is behaving as it should be, how can i get speeds like CamH, will buying a new modem help my situation (looking at tp-link td-8840) or would it be a waste of money.

I apologize if this is an overload of information and would appreciate it if anyone can help me with this? Is there anything for me to be worried about or should i just accept that this my speed and it will not change.

thanks, mike 
 

 

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Uber Geek
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  Reply # 304651 5-Mar-2010 06:02
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http://www.internode.on.net/residential/broadband/adsl/extreme/performance/ has a chart that show the speed curve of adsl vers distance.
Your line mode says "Line Mode ADSL2+", so the techs are right in that your getting adsl2+ and not adsl.

TNBT3 is Vodafone service resold by Slingshot, I have heard others that are getting that kind of speed, it;s a good speed and that makes it harder to get it better as your getting top speed adsl performance but not adsl2+.

My advice would be keep at the helpdesk, try and get a technician to come and do some tests on the line. It's like the exchange is broken and only delivers adsl speeds over an adsl2+ service, they need to give their boxes a boot or something technical like that.

Good luck.



3 posts

Wannabe Geek


  Reply # 304673 5-Mar-2010 08:53
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hey hell, thanks for the prompt reply, thanks for that link and according to it ideally i should be roughly on the 20000 kbps mark, i know certain factors will prevent me from getting that speed.

"I have heard others that are getting that kind of speed"
what speed? my speed or the theoretical speed that i should be getting?

is there anything specific i should tell the helpdesk or just explain my situation, also will this cost me ($200)?

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  Reply # 305200 7-Mar-2010 12:30
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Hi, your attenuation is 38dB thats around 2.7km of cable, so your sync speed is about right, unless its aritifically high due to some wiring issue in your house.

Also be aware that the internode graph is based on 6dB Noise margins, so will always show higher speeds than you will ever get on a Telecom DSLAM due to their sensible use of 12dB margin.

Cheers
Cyril



3 posts

Wannabe Geek


  Reply # 305222 7-Mar-2010 15:53
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Thanks Cyril,

It is a shame that's what my line is capable of, had a look at the telecom wholesale maps and i just miss out on the cabinets they're gonna be installing in the future, means i'm far from the exchange but not far enough for a cabinet. 

Was considering getting a central line filter/splitter installed into our house, do you think this is worth it? If so how much? 

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