New BT Infinity connection - what is its look & feel

attenuation?

3.5 km line, 44 to 45 dB attenuation noise from -2 (night) to 6 (day) sync at 6400 ATM. Until about 12 hours ago it was 6688 but it's got cold, wet and windy in the last couple of days...

It does seem odd that 47 dB attenuation is quite so poor, I'd expect a lower speed of 2 Mbps or above and upper something under 4 Mbps.

I think Huge needs to dig about and see if he can get the current information out of the modem and look at the telephone wiring/filters etc if he hasn't already optimised that.

Reply to
Dave Liquorice
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Some routers only report up to 63.5dB so your real attenuation could be higher.

In the early days my line was considered too long to get ADSL but I stuck to dial-up until they extended the limits.

I expect you mean lower ;-)

My sync speed varied, IIRC, from about 1.6M to nearly 3M depending on the wind direction. Usually it was around 2M.

Reply to
Mark

It may well be.

Reply to
Mark

All already done. I've had BT people sprawled all over my study floor with TDRs, line testers & Gawd knows what. I've had all the cable from my house to the green box replaced. I work from home, so usable broadband is essential.

Reply to
Huge

2017.

But I wouldn't like to bet on it. Maybe the distance as the line lies from a property to the cabinet (if there is one) and exchange ought to be on the property details from estate agents and the exchange details from SamKnows. B-)

Mind you most of the Great Unwashed wouldn't understand the information they were being given.

Reply to
Dave Liquorice

She didn't take up the offer - as there is no obvious use for such speed. Who was it said that the UK would manage with half a dozen computers?

Reply to
Geoff Pearson

No, it was a local handyman who used to do installs for BT. IIRC, he asked me if I wanted the bell wire connected and, being ignorant about it at the time, asked him to connect it up. Later we had a sparks doing some other work and I asked him to disconnect it as he's 20 years younger than me (else I'd have gone up there myself).

Reply to
Tim Streater

What is the perceived benefit of having the master socket in the loft? Just curious.

Reply to
Peter Crosland

Well, we hadn't long been moved in. The BT line comes in at the eave, and from there it split into a number of wires that were just tacked to the outside wall and entered the house at various points.

Personally, I find wires trailing over the outside of the house looks like shit, so I wanted that tidied up. As we have a BT Diverse with three handsets, connected where the router is, we only needed one other socket anyway (for an unpowered phone if there's a powercut).

As the master socket was already there in the loft, it also reduced the visible wiring inside by having it routed around in the loft. Perhaps I should have had a microfilter put in the loft and run phone + cat5 to where the router is - in fact I could still have that done, come to think of it.

Reply to
Tim Streater

Thanks for that. I agree about exterior wires looking bad. Certainly BT usually like the master socket where it is easily accessible and if you move to FTTC they will insist on a nearby powerpoint for their equipment. That might be the opportunity to get it moved free of charge.

Reply to
Peter Crosland

It bloody well aught to be. Use the space wasted by those stupid energy assessments, instead.

Reply to
Huge

64db is really the limits.

you are on the raggy edge mate.

Reply to
The Natural Philosopher

No curb here, on either side of the road :-)

There was also a nest of external TV cable on the outside wall, with the cable coming down the roof and *over the gutter, FFS* down to a splitter mounted on the wall, and cables going off from that to enter various rooms. All gone now.

Reply to
Tim Streater

This is the most handy calcualator I know

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shows you to be well on target.

5km line probably.
Reply to
The Natural Philosopher

BT are currently saying 7 times the speed of vanilla BB which works out as 35 meg. I am not sure how I would actually benefit from such an increase as on the rare occasions I view a program on I-player (or whatever it is called) I don't recall waiting for the download to catch up with play back.

Reply to
Roger Chapman

I was wearing my ignorant customer hat. If I lose 15 meg over 1.5 miles of copper and BT can supply me with 35 meg over 0.5 miles then surely there couldn't be any valid reason why I didn't get 20 meg at 1.5 miles. Incidentally I am only 1 mile from the exchange but the wires go by a round about route.

Now here's the thing that really bugs me. My sister gets 8 meg at her house in Essex which is about 3 miles in a direct line from the exchange (and it has been as high as 10). So she has been getting roughly twice the speed I get at at least twice the distance. Since this is outside your cited graph is it possible that BT could have set up an auxiliary exchange without making the knowledge public enough for me to notice. There is one curious aspect of the telephone number which has been in the family since it was a 3 figure number back in 1947. My father was in ill health for several years before he died and had some sort of alarm system routed through the telephone which initially would not work. The BT solution was to change the first 3 digits of the telephone number which, allegedly, transferred him onto a newer bank of equipment in the exchange. Could that transfer actually be out of the local exchange into an offshoot considerably closer to home. It is only a small town which no longer warrants a dialling code entry of its own in the new slimline version of the telephone directory so I can't see that it would justify

2 separate exchanges.
Reply to
Roger Chapman

Lol, no, I don't live that side of town. I'm a stones throw from the channel tunnel terminal :-)

Darren

Reply to
D.M.Chapman

Mine was substantially LESS - and it wasn't a prediction it was a statement. Your download speed will be 38mbps - max measured 30 typically 26.

Reply to
bert

Perhaps if you were comparing like with like, but your not. The local loop connection with FTTC is not made using ADSL2+ modulation, but VDSL modulation with higher spec filters. The later technology gets better results from the same starting point.

(its also fair to say that your existing ADSL performance is sub par for the line length - suggesting the particular pair of wires you have for your local loop has a number of factors degrading its performance below the ideal. So a different pair, even of the same length may get significantly better results)

Yup same here. Count yourself luck you get 5meg - I can't get that with two lines load balanced!

Possibly. Exchanges have shrunk somewhat, so new automatic ones do pop up from time to time. One of the line checker sights should identify which one your number is serviced by.

Slap your number in here, and see what exchange it thinks you are on:

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Reply to
John Rumm

snip

;-)

Just had a look at the home hub detail. 5275/872 and line attenuation

49.9. Bit early in the morning for much traffic I suppose.

Sadly it gives the same exchange (Harwich) both for numbers commencing 5 (which it was) and numbers commencing 2 which is what it was changed to. Luckily I could remember another valid number as the original version didn't pass muster.

Thanks however for the advice.

Reply to
Roger Chapman

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