i have just got "proper" broadband rather than using a mobile broadband dongle anymore and im having a bit of confusion as to where i need to put microfilters. heres how its set up at the moment (which im sure is wrong) i have my main socket in the hallway, plugged into that is a "doubler" (not sure if thats the correct term) which my phone plugs into and a lead runs from that "doubler" to another "doubler", that doubler has a lead that runs into my sky+ and i have a microfilter on it, then obviously the dsl wire runs into the microfilter. the problem is i have a lot of noise on the phone line and when your on the phone the broadband doesnt work right. how can i solve this? do i need to put another microfilter at the main socket??? or something else? thanks in advance for any advice

just to be clear the second doubler has one side plugged into sky+ and the other side plugged into a microfilter then dsl line.

anywhere a phone or sky or fax machine is plugged in, unplug it, plug a filter in and plug that into the filter..

also plug a filter in where your broadband is plugged in, and plug the modem into the filter ( if this is the same place as a phone etc, then plug them both into the same filter )

but the more things you have on your line, the more likely you are to have an unstable connection, and slow speeds.

You need a filter in the actual socket in the wall. First point of entry so to speak.

You need a filter in the actual socket in the wall. First point of entry so to speak.

thats only if the modem/router is located there, otherwise you'll be filtering it before it even gets to the router/modem.

thats only if the modem/router is located there, otherwise you'll be filtering it before it even gets to the router/modem.

No, it needs the filter at the first place anything is connected.

It seems that you'll just need to filter the phone on the main socket in the hallway.

You must leave the doubler in there, plug the microfilter into one of it's outlets (the phone will then plug into the phone side of the microfilter)

Then the extension lead plugs into the other socket of the doubler.

At the other end, the microfilter should plug into the doubler and the Sky+ and DSL then into the second microfilter.

Your problems arose because your hallway phone is connected 'outside' the filtered circuit, so you've effectively hardwired it directly onto a line carrying both telephone and data services, this is what the noise is, it's the sound of the DSL service, and taking the phone off-hook breaks the DSL connection. Sorted

No, it needs the filter at the first place anything is connected.

No... if the router is (for example) up stairs, at the end of an extension cable, then filtering it at the main socket will prevent the router getting a connection at all... in this case, you should filter it on the end of the extension...

No... if the router is (for example) up stairs, at the end of an extension cable, then filtering it at the main socket will prevent the router getting a connection at all... in this case, you should filter it on the end of the extension...

Sorry but your wrong:)

No... if the router is (for example) up stairs, at the end of an extension cable, then filtering it at the main socket will prevent the router getting a connection at all... in this case, you should filter it on the end of the extension...

What you're describing would only apply if you plugged the extension lead into the analogue (phone) side of the microfilter. This would indeed prevent the DSL service from reaching the router.

The correct setup here is to split the incoming socket with a 'doubler', connect the extension to one of the doubler's ports and the 1st microfilter to the other (which the phone then connects to)

Your solution would be ok until the phone rings or is lifted, then the DSL service would break (as the OP is finding)

What you're describing would only apply if you plugged the extension lead into the analogue (phone) side of the microfilter. This would indeed prevent the DSL service from reaching the router.

The correct setup here is to split the incoming socket with a 'doubler', connect the extension to one of the doubler's ports and the 1st microfilter to the other (which the phone then connects to)

Your solution would be ok until the phone rings or is lifted, then the DSL service would break (as the OP is finding)

yes, if you plug the filter directly into the socket, and the double into the filter, then the router on the end of an extension, is what i'm talking about..

and the answer you have given is just what I said originally... there's no need to filter @ the doubler if the router is on the end of the extension.. that is why I gave the alternative and easy answer...

it all depends where the router is located as to where the filter needs to be.. if its down stairs by main socket, filter before doubler, if its on the end of an extension, filter INTO doubler, (x2) etc...


The correct setup here is to split the incoming socket with a 'doubler', connect the extension to one of the doubler's ports and the 1st microfilter to the other (which the phone then connects to)
You would also need to filter on the end of the extension else you will still have the same issue... that is why I said originally to filter at each phone/device...

the correct way is wall socket filter then your other crap you will also need filters on any other wall socket like bedroom extention etc

http://www.dlink.com.au/Images/Product_images/ADSL-Microfilter-Diagram.jpg
the doubler would plug into the filter then plug your phone and sky into the doubler

and the answer you have given is just what I said originally... there's no need to filter @ the doubler if the router is on the end of the extension.. that is why I gave the alternative and easy answer...



So where does he plug his phone into now then? :huh:

the doubler would plug into the filter then plug your phone and sky into the doubler

again, thats only if the router is @ the main socket, if its not then the filter needs to either be into the doubler, and/or on the end of the extension(s)

So where does he plug his phone into now then? :huh:

ok, diagram coming up... bear with me....

You would also need to filter on the end of the extension else you will still have the same issue... that is why I said originally to filter at each phone/device...

I didn't say he shouldn't :huh: That's why I spoke of the 1st microfilter (implying there's a 2nd somewhere)

You said not to filter in the hallway, which will prevent the use of the phone

again, thats only if the router is @ the main socket, if its not then the filter needs to either be into the doubler, and/or on the end of the extension(s)

my set up is main wall socket<filter<doubler<doubler<sky/phone/extention(to bedroom with router unfiltered)

The problem here is, as i've tried to simplify, that the phone in the hallway is directly connected to a line, when it should be filtered.

It's that simple!

ok.. there's 3 ways to do this.. depending where the router is/needs to be

Option 1 - http://yfrog.com/jtoption1j (the router could be @ either filter)

Option 2 - http://yfrog.com/5voption2j

Option 3 - http://yfrog.com/caoption3j

option 1 and 2 only need 1 filter before the double into the main socket

option 1 and 2 only need 1 filter before the double into the main socket

no they don't... only if the router is by the main socket, if its in another room (like where the sky is) then it has to be on the end, like I showed...

ok.....................just read that lot and i must admit im a bit confused lol, had a look at your diagrams ghozer and at the moment its set up just like option 1 but without a filter between the doubler and phone, so am i right in thinking putting a filter there will correct the problems?

from the OPS description this is the diagram..

http://yfrog.com/evopsj

A filter should be at point A and point B for this to work..

alternativly, look at my other diagrams for alternative ways of wiring it up.

ok.. there's 3 ways to do this.. depending where the router is/needs to be

Option 1 - http://yfrog.com/jtoption1j (the router could be @ either filter)

Option 2 - http://yfrog.com/5voption2j

Option 3 - http://yfrog.com/caoption3j

Your diagrams are all correct, so perhaps we had a misunderstanding.

You appeared to be saying that the OP wouldn't need a filter at the main socket in the hallway, which he will because that's where the telephone is located

no they don't... only if the router is by the main socket, if its in another room (like where the sky is) then it has to be on the end, like I showed...

so how come my routers in a bedroom on an extention with only 1 filter at the main socket none on the extention and works fine 100%

Your diagrams are all correct, so perhaps we had a misunderstanding.

You appeared to be saying that the OP wouldn't need a filter at the main socket in the hallway, which he will because that's where the telephone is located

Nah, probably was just a misunderstanding, d/w about it :)

so how come my routers in a bedroom on an extention with only 1 filter at the main socket none on the extention and works fine 100%

By 'extension', he's referring to a telephone extension, ie one with BT style ends on it.

Yours must just be a long modem wire, ie with RJ11 type (square and transparent 'modem' ends) which connects your DSL router to the DSL port of the filter.

By 'extension', he's referring to a telephone extension, ie one with BT style ends on it.

Yours must just be a long modem wire, ie with RJ11 type (square and transparent 'modem' ends) which connects your DSL router to the DSL port of the filter.

no its an extension with a bt box on the end it has a doubler on it with the router and second sky box in it

no its an extension with a bt box on the end it has a doubler on it with the router and second sky box in it

If it has a socket for the Sky box (BT style) and one for the router (square) then it's a filter

EDIT: unless you're on dial-up

If it has a socket for the Sky box (BT style) and one for the router (square) then it's a filter

EDIT: unless you're on dial-up

lets get this right im not an idiot THERE IS NO FILTER ON THE EXTENSION i am on broadband getting a speed of 7.5 there is 1 filter in my house on the main socket downstairs done :|

why am i even arguing my set ups been fine for 7 plus years

lets get this right im not an idiot THERE IS NO FILTER ON THE EXTENSION i am on broadband getting a speed of 7.5 there is 1 filter in my house on the main socket downstairs done :|

I don't think you're an idiot and I don't doubt you're getting high speeds. Chill! :)

What you are is in some way wrong/confused about what you have and how it's set up. That's fine, honestly

A DSL router MUST plug into the DSL jack of a line filter somewhere. To suggest otherwise is a bit like saying your computer works without being plugged into the mains.

I don't think you're an idiot and I don't doubt you're getting high speeds. Chill! :)

What you are is in some way wrong/confused about what you have and how it's set up. That's fine, honestly

A DSL router MUST plug into the DSL jack of a line filter somewhere. To suggest otherwise is a bit like saying your computer works without being plugged into the mains.

unless they have one of those phones that filter out DSL signals so the DSL can be plugged into a filter somewhere, and the phone directly into the line else where etc..

or unless its an installed extension with internal filter inside the socket...

I don't think you're an idiot and I don't doubt you're getting high speeds. Chill! :)

What you are is in some way wrong/confused about what you have and how it's set up. That's fine, honestly

A DSL router MUST plug into the DSL jack of a line filter somewhere. To suggest otherwise is a bit like saying your computer works without being plugged into the mains.

now this might sound wacky but my pc does work without being plugged into the mains it has this great little box (not a filter) slapped in the back of it called a "battery" :o

unless they have one of those phones that filter out DSL signals so the DSL can be plugged into a filter somewhere, and the phone directly into the line else where etc..

or unless its an installed extension with internal filter inside the socket...

Yes, but neither of those scenarios change the point, that a DSL router must connect to a source of DSL signal (a filter), whether that's in a 'dongle' style filter that hangs off the socket on a small fly-lead, one of the small rectangular microfilters that look like an extension double or a socket face one.

now this might sound wacky but my pc does work without being plugged into the mains it has this great little box (not a filter) slapped in the back of it called a "battery" :o

That doesn't sound 'wacky'

The idea that you get DSL without your router being connected to a source of DSL does however :hihi:

And anyway, how do you charge this battery, smart arse?

Mod Note: This thread is trailling off, the original post has been answered so can we please leave it now and take the conversation to PM or else where? (Chat) - Thanks

sorry ghozer last post heres my set up
http://i186.photobucket.com/albums/x3/mr_yosh/phone.jpg

sorry ghozer last post heres my set up
http://i186.photobucket.com/albums/x3/mr_yosh/phone.jpg

Sorry Denomis, but that (as described by you) simply can't work. It goes against the laws of science.

You must have connected to the telephone side of the filter to achieve that set up and therefore you'll be filtering out all of the data frequencies (higher than the voice ones) so they won't be able to reach the router.

BTW are we really that off topic by discussing how DSL works? :huh:

BTW are we really that off topic by discussing how DSL works? :huh:

If thats all you do then thats fine, but it was edging towards personal insults...

If thats all you do then thats fine, but it was edging towards personal insults...

Fair enough.

I meant 'smart arse' in light hearted way, but these things don't always work online as you intend...

no offence taken all in good fun and yes i dropped a knacker with the diagram this is right
http://i186.photobucket.com/albums/x3/mr_yosh/phone-1.jpg

no offence taken all in good fun and yes i dropped a knacker with the diagram this is right
http://i186.photobucket.com/albums/x3/mr_yosh/phone-1.jpg

Glad to hear it :)

Now the setup in this diagram will work fine for DSL, but are you sure the Sky box connects ok?

The point stands that it won't be a BT style connection at the filter end, but rather an RJ-11

Hi guys

I work in 2nd Line Broadband support so I can tell you how things sohuld be set up.

In an ideal world, you should have your router plugged into the main BT socket in the house. Sometimes this isnt feasibile though.

You should have an ADSL microfilter as the FIRST thing in any used socket, with the phone (or phone extension) in one side, and the DSL in the other. The only exception (i can think of) is if your phone AND your router are miles away from the socket, in which case you can have your extension cable as your first item in the socket, with the filter at the end, as long as you dont have any other devices in between.

I usually recommend this website: http://www.kitz.co.uk/adsl/splitter_install.htm to customers having install problems, as Kitz is very knowledgable about Broadband.

the correct way is wall socket filter then your other crap you will also need filters on any other wall socket like bedroom extention etc

http://www.dlink.com.au/Images/Product_images/ADSL-Microfilter-Diagram.jpg
the doubler would plug into the filter then plug your phone and sky into the doubler

Hi guys

I work in 2nd Line Broadband support so I can tell you how things sohuld be set up.

In an ideal world, you should have your router plugged into the main BT socket in the house. Sometimes this isnt feasibile though.

You should have an ADSL microfilter as the FIRST thing in any used socket, with the phone (or phone extension) in one side, and the DSL in the other. The only exception (i can think of) is if your phone AND your router are miles away from the socket, in which case you can have your extension cable as your first item in the socket, with the filter at the end, as long as you dont have any other devices in between.

I usually recommend this website: http://www.kitz.co.uk/adsl/splitter_install.htm to customers having install problems, as Kitz is very knowledgable about Broadband.

i wont gloat :D and yes my sky works fine

i wont gloat :D and yes my sky works fine

Well you wouldn't really notice if it didn't. The first you'd know would be when Sky call you to say the box isn't ringing back to them.

Wouldn't affect your pictures at all

Hi guys

I work in 2nd Line Broadband support so I can tell you how things sohuld be set up.



Cheers, but we did that about 3 pages ago :)

Cheers, but we did that about 3 pages ago :)

I've read the entire thread thanks. There still seems to be some confusion from others about how things should be set up.

I've read the entire thread thanks. There still seems to be some confusion from others about how things should be set up.

You haven't exactly told the thread anything that we didn't back then though.

(LOL at the multiple mutual misunderstandings on the first page of this thread.

A little more time spent reading posts, a little less haste posting and a little more care in word choice and I'm sure these could be avoided.)



A DSL router MUST plug into the DSL jack of a line filter somewhere.

That's not strictly correct.

You could, for example, connect the router directly to a BT socket using a dialup modem cable.

Also, incidentally, I've seen several cases where people were able to synch connected to the 'wrong' side of a filter. The filter doesn't completely block ADSL frequencies; it just highly attenuates them. (I can't be bothered to check the BT SIN but I believe the spec is about 62dB.) Of course, all these people had short, low-attenuation low-fixed-speed lines.

On my own line (~23dB attenuation) I can 'see' the ADSL signals at the 'wrong' side of a filter but SNR isn't good enough to synch.


@ coocoocachew (the OP) : I agree with the consensus. You need to filter the downstairs phone.


@ denomis : You may get a marginal improvement by filtering your upstairs Sky box

You haven't exactly told the thread anything that we didn't back then though.

Oh im sorry - I didnt realise you were the thread police.