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ADSL - Slow DialUp Connection

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  #1  
Old 12-11-2003, 10:30 AM
Default ADSL - Slow DialUp Connection



I've recently gone broadband, I've got four extension sockets so
purchased four splitters.

The splitters were bought cheaply from a computer warehouse and cost
under 10ukp for all four.

Strangely two of my phones are working fine without a splitter
connected to them however, I still need to use DialUp on occasions and
connecting through a splitter I am getting connection rates of about
26kbps rather that the previous 44kbps prior to ADSL activation.

Is this normal or reflective of my cheap splitters.

Geoff Lane



Geoff Lane
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  #2  
Old 12-11-2003, 12:14 PM
Rob Morley
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Posts: n/a
Default Re: ADSL - Slow DialUp Connection

In article <(E-Mail Removed)>, "Geoff Lane"
(E-Mail Removed) says...
> I've recently gone broadband, I've got four extension sockets so
> purchased four splitters.
>
> The splitters were bought cheaply from a computer warehouse and cost
> under 10ukp for all four.
>
> Strangely two of my phones are working fine without a splitter
> connected to them however, I still need to use DialUp on occasions and
> connecting through a splitter I am getting connection rates of about
> 26kbps rather that the previous 44kbps prior to ADSL activation.
>
> Is this normal or reflective of my cheap splitters.
>

Given the way that microfilters work I expect that's normal, although I
couldn't find bandwidth specifications in a quick Google search on the
subject.
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  #3  
Old 12-11-2003, 12:55 PM
BRG
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Posts: n/a
Default Re: ADSL - Slow DialUp Connection

Rob Morley <(E-Mail Removed)> wrote in
news:(E-Mail Removed) .com:

> In article <(E-Mail Removed)>, "Geoff
> Lane" (E-Mail Removed) says...
>> I've recently gone broadband, I've got four extension sockets
>> so purchased four splitters.
>>
>> The splitters were bought cheaply from a computer warehouse and
>> cost under 10ukp for all four.
>>
>> Strangely two of my phones are working fine without a splitter
>> connected to them however, I still need to use DialUp on
>> occasions and connecting through a splitter I am getting
>> connection rates of about 26kbps rather that the previous
>> 44kbps prior to ADSL activation.
>>
>> Is this normal or reflective of my cheap splitters.
>>

> Given the way that microfilters work I expect that's normal,
> although I couldn't find bandwidth specifications in a quick
> Google search on the subject.


I have just done a test on a non-ADSL phone line. The result was
that the splitter made no difference whatsoever - 46.6 kbps dial-up
with or without. The splitter I tried was also a cheapy - a socket-
doubler style device with the brand name "Tehkal". It could still
be your particular make of splitter that filters too sharply, of
course. Or that mine doesn't filter at all :-)

Suggest you narrow it down by disconnecting everything from all
phone sockets and try dial-up on its own. Then connect it via a
splitter and test again. Then connect in your ADSL modem as well
and retest. Then add the other phone handsets one at a time.

--
BRG
===
http://www.brgservices.co.uk/
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  #4  
Old 12-11-2003, 01:05 PM
Geoff Lane
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Posts: n/a
Default Re: ADSL - Slow DialUp Connection

On Thu, 11 Dec 2003 12:55:40 GMT, BRG <(E-Mail Removed)> wrote:


>>> I've recently gone broadband, I've got four extension sockets
>>> so purchased four splitters.


>>> I still need to use DialUp on
>>> occasions and connecting through a splitter I am getting
>>> connection rates of about 26kbps rather that the previous
>>> 44kbps prior to ADSL activation.


>Suggest you narrow it down by disconnecting everything from all
>phone sockets and try dial-up on its own. Then connect it via a
>splitter and test again. Then connect in your ADSL modem as well
>and retest. Then add the other phone handsets one at a time.


Thanks for the pointers, the speed is not a great issue as it is
seldom I'm going to have to use it but I will certainly try out what
you have suggested.

Geoff Lane
Welwyn Hatfield Computer Club - Hertfordshire, UK
www.whcc.co.uk - Online facilities for non locals

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  #5  
Old 12-11-2003, 01:19 PM
Rob Morley
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Posts: n/a
Default Re: ADSL - Slow DialUp Connection

In article <Xns944E8358DBADFBRGxxx@62.253.162.114>, "BRG" (E-Mail Removed)
says...
> Rob Morley <(E-Mail Removed)> wrote in
> news:(E-Mail Removed) .com:
>
> > In article <(E-Mail Removed)>, "Geoff
> > Lane" (E-Mail Removed) says...
> >> I've recently gone broadband, I've got four extension sockets
> >> so purchased four splitters.
> >>
> >> The splitters were bought cheaply from a computer warehouse and
> >> cost under 10ukp for all four.
> >>
> >> Strangely two of my phones are working fine without a splitter
> >> connected to them however, I still need to use DialUp on
> >> occasions and connecting through a splitter I am getting
> >> connection rates of about 26kbps rather that the previous
> >> 44kbps prior to ADSL activation.
> >>
> >> Is this normal or reflective of my cheap splitters.
> >>

> > Given the way that microfilters work I expect that's normal,
> > although I couldn't find bandwidth specifications in a quick
> > Google search on the subject.

>
> I have just done a test on a non-ADSL phone line. The result was
> that the splitter made no difference whatsoever - 46.6 kbps dial-up
> with or without. The splitter I tried was also a cheapy - a socket-
> doubler style device with the brand name "Tehkal". It could still
> be your particular make of splitter that filters too sharply, of
> course. Or that mine doesn't filter at all :-)
>
> Suggest you narrow it down by disconnecting everything from all
> phone sockets and try dial-up on its own. Then connect it via a
> splitter and test again. Then connect in your ADSL modem as well
> and retest. Then add the other phone handsets one at a time.
>
>

I wonder if having four splitters effectively connected in parallel is
having a cumulative effect? I'd have thought it would be better to have
a single microfilter at a central point, with a dedicated connection for
the ADSL.
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  #6  
Old 12-11-2003, 01:41 PM
Conor
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Posts: n/a
Default Re: ADSL - Slow DialUp Connection

In article <(E-Mail Removed)>,
(E-Mail Removed) says...
> I've recently gone broadband, I've got four extension sockets so
> purchased four splitters.
>
> The splitters were bought cheaply from a computer warehouse and cost
> under 10ukp for all four.
>
> Strangely two of my phones are working fine without a splitter
> connected to them however,


They will but when the ADSL connection is active you'll hear a high
pitched hissing noise.


--
Conor

A high I.Q is like a Jeep. You still get stuck, just further from help.
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  #7  
Old 12-11-2003, 01:59 PM
BRG
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Posts: n/a
Default Re: ADSL - Slow DialUp Connection

Rob Morley <(E-Mail Removed)> wrote in
news:(E-Mail Removed) .com:

> In article <Xns944E8358DBADFBRGxxx@62.253.162.114>, "BRG"
> (E-Mail Removed) says...
>> Rob Morley <(E-Mail Removed)> wrote in
>> news:(E-Mail Removed) .com:
>>
>> > In article <(E-Mail Removed)>,
>> > "Geoff Lane" (E-Mail Removed) says...
>> >> I've recently gone broadband, I've got four extension
>> >> sockets so purchased four splitters.
>> >>
>> >> The splitters were bought cheaply from a computer warehouse
>> >> and cost under 10ukp for all four.
>> >>
>> >> Strangely two of my phones are working fine without a
>> >> splitter connected to them however, I still need to use
>> >> DialUp on occasions and connecting through a splitter I am
>> >> getting connection rates of about 26kbps rather that the
>> >> previous 44kbps prior to ADSL activation.
>> >>
>> >> Is this normal or reflective of my cheap splitters.
>> >>
>> > Given the way that microfilters work I expect that's normal,
>> > although I couldn't find bandwidth specifications in a quick
>> > Google search on the subject.

>>
>> I have just done a test on a non-ADSL phone line. The result
>> was that the splitter made no difference whatsoever - 46.6 kbps
>> dial-up with or without. The splitter I tried was also a cheapy
>> - a socket- doubler style device with the brand name "Tehkal".
>> It could still be your particular make of splitter that filters
>> too sharply, of course. Or that mine doesn't filter at all :-)
>>
>> Suggest you narrow it down by disconnecting everything from all
>> phone sockets and try dial-up on its own. Then connect it via a
>> splitter and test again. Then connect in your ADSL modem as
>> well and retest. Then add the other phone handsets one at a
>> time.
>>
>>

> I wonder if having four splitters effectively connected in
> parallel is having a cumulative effect? I'd have thought it
> would be better to have a single microfilter at a central point,
> with a dedicated connection for the ADSL.
>


I haven't heard of that being a problem. Using a single filter at
the master socket is a recognised wiring strategy, but it
constrains where you can locate your ADSL modem.

One of my customers had background hiss on his phones even though
they were (allegedly) all connected via splitters. We double-
checked and found another phone in a bedroom without a splitter,
and that was the source of the problem. It appears that an
unfiltered phone can cause noise at audio frequencies. And because
the noise is at audio frequencies, the presence of splitters [which
are actually a low-pass filter] elsewhere won't help one iota.

So, one unfiltered (or faultily-filtered) phone can affect all of
the rest. Hence my step-by-step methodology for tracking down the
culprit.

--
BRG
===
http://www.brgservices.co.uk/
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  #8  
Old 12-11-2003, 02:10 PM
Bernard Peek
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Posts: n/a
Default Re: ADSL - Slow DialUp Connection

In message <Xns944E8358DBADFBRGxxx@62.253.162.114>, BRG <(E-Mail Removed)>
writes


>I have just done a test on a non-ADSL phone line. The result was
>that the splitter made no difference whatsoever - 46.6 kbps dial-up
>with or without. The splitter I tried was also a cheapy - a socket-
>doubler style device with the brand name "Tehkal". It could still
>be your particular make of splitter that filters too sharply, of
>course. Or that mine doesn't filter at all :-)


I've had similar problems with my phones. I can hear the ADSL modem
retraining when I use the analogue phone, I would expect that to affect
a modem on the same line.



--
Bernard Peek
London, UK. DBA, Manager, Trainer & Author. Will work for money.

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  #9  
Old 12-11-2003, 03:05 PM
Richard Haygreen
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Posts: n/a
Default Re: ADSL - Slow DialUp Connection


The loss of speed is because have your phone line is now adsl, in effect
reducing your bandwith by half. This is fine for voice, but will see a
slower data speed, around 26kbps is about right.


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  #10  
Old 12-11-2003, 04:36 PM
BRG
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Posts: n/a
Default Re: ADSL - Slow DialUp Connection

"Richard Haygreen" <(E-Mail Removed)> wrote in
news:(E-Mail Removed):

>
> The loss of speed is because have your phone line is now adsl,
> in effect reducing your bandwith by half. This is fine for
> voice, but will see a slower data speed, around 26kbps is about
> right.
>
>


Eh?

--
BRG
===
http://www.brgservices.co.uk/
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