Does the modem make a difference in ADSL speeds?

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paulo_andre

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I currently have an ADSL connection "up to 12Mbps", and the router really syncs at 12000kbps. Now I asked for an upgrade to "up to 24Mbps" (still waiting for them to do it), and I know I won't have the full 24Mbps, but I'm wondering if changing the adsl modem will allow me to get higher speeds or if the line quality is the limiting factor here.
If changing the modem does make a difference, could you give me some advice on the brand and model? I don't need router or wireless functionality, I have older routers that can do that if needed. All I really want is faster ADSL speeds.
 
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Supermuncher85
No it wasn't too expensive around ~100 euros same as most other modems. My SB6121s cost $90 each when I bought them.

http://www.amazon.de/T-Com-Speedport-200-DSL-Modem-ADSL2/dp/B000JJFV6U/ref=sr_1_3?ie=UTF8&qid=1370358449&sr=8-3&keywords=dsl+modem think it was this one. It has really good SNR compensation that worked far better than the modem that was originally provided (also a router/modem combo think by ZyXel).

Otherwise get a tech over. My cable modem lines were dropping packets like crazy. Instead of 36-50mbit I was getting about 0.6 turned out my Downstream power level was @ 18dBmV (totally out of bounds) upstairs and 8dBmV downstairs. I didn't have the right equipment to deal with this so I had to have a tech come in, and lo...
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paulo_andre

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Right now I have a belkin N300 modem/router
I don't expect to be able to download from 24Mbps from everywhere, but I wanted the modem to sync at 24000kbps or as close as possible.
 
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manofchalk

manofchalk

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Not entirely sure, Belkin seem to like not giving out much info about it.
I would assume that since it supports bandwidth up to 300Mb/s through its wireless, that the modem aspect can handle 24Mbp/s. Strangely though the ethernet ports can only support up to 100Mb/s.
 
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paulo_andre

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My question is not if the router can handle the speed, but more if the modem part can have better sensitivity or "correct" some of the line noise and therefore achieve higher speeds on the adsl side.
 
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Supermuncher85

Supermuncher85

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There are special low noise modems. I've used one in germany. Where are you country wise as modem selection depends largely on region.

Also with adsl keep in mind that you do share the connection with others, and at peek times are unlikely to get the maximum speed, if ever. And as you stated distance to DSLAM is a huge factor.
 
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paulo_andre

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So it IS possible that a modem gets you higher adsl speeds, but from your words I assume "special" = "expensive". But anyway, could you give an example of these modems, so that I see if I can get one?
 
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Supermuncher85

Supermuncher85

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No it wasn't too expensive around ~100 euros same as most other modems. My SB6121s cost $90 each when I bought them.

http://www.amazon.de/T-Com-Speedport-200-DSL-Modem-ADSL2/dp/B000JJFV6U/ref=sr_1_3?ie=UTF8&qid=1370358449&sr=8-3&keywords=dsl+modem think it was this one. It has really good SNR compensation that worked far better than the modem that was originally provided (also a router/modem combo think by ZyXel).

Otherwise get a tech over. My cable modem lines were dropping packets like crazy. Instead of 36-50mbit I was getting about 0.6 turned out my Downstream power level was @ 18dBmV (totally out of bounds) upstairs and 8dBmV downstairs. I didn't have the right equipment to deal with this so I had to have a tech come in, and lo and behold the incoming signal was also way too weak. So line boosting outside the house, a preamp on the line coming and now my downstream levels are where they are supposed to be @+/-3 both down and upstairs. Obviously this was cable but the point being it might not be your hardware, it might be an issue your provider can fix(obviously getting the right tech is the tricky part).
 
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