Hi,

Sorry I mean I have a signal to noise ratio of 7db down.

And a line attenuation of 20db down.

Are they good?

Thanks,

Matt

Line attenuation is a given, as in how many miles are you from Birmingham . It is a measurement of the signal loss between the transmitter and your modem. It depends almost entirely on the distance and the quality of the copper or aluminium and all the connections between them, between you and the FTTC cabinet.

I've got an introductory explanation of SNR(M) here. It was originally written for ADSLx but the principles are the same between you and the FTTC cabinet.

The SNRM varies constantly. Normally low at night and high in the day. Basically to do with the effects of the sun on the atmosphere affecting all the radio wave reflections going on around us.

I would say for an attenuation of 20dB you are getting quite a good connection speed. I suggest you check the SNRM early, late and a couple of times in the day, for a few days, so you can see how it varies.

I hope that helps .

Thanks for this.

Checked again this morning and it looks like it resynced overnight at around 1am and has gone from 56.5 to 58.5.

The signal to noise ratio on the download has dropped from 7 to 6, so now matches the upload figure.

The line attenuation is still 20 down and 28 up.

The attainable speed is still between 59 and 60, so may go up again in the coming days, hopefully!

Matt

FYI I noticed that G.INP is now on for download and wasn't the other day.

Would this have come on automatically? Or would Zen have to do this manually?

Thanks,

Matt

Automatic by DLM system

Ah OK interesting. Speed may increase more then 😁

Matt

In reply to a post by uno:

If the profile defaults to speed, changing this won't help you as your line is already going to get the best it can.

If they've set stable or super stable, changing to speed may give you a little more.

I can't see them refusing to change this if not already on the setting which should give you the fastest.

Matt

Getting your terminology very mixed up there.

Speed, Standard and Stable are the OpenReach profiles.

Standard, Stable and super stable are BT Wholesale terms for the above.

Quite, adding in to the mix how TTB mishmash the three!

The overall point remains though which was being convey at the top end profile will give the best rates the line can support.

Matt

G.INP turning on is a single step process.

Attenuation is fixed. Give or take 0.5, depending almost literally on the weather. Or if water gets into a joint, in which case all sorts of nasties can happen