I suppose it could be... It never stops or changes pitch anyway.

Do you think its possible to be fixed? Or does BT run their own electric grid between exchanges?

One problem that occurs a lot on voice lines out in the country is mains hum. There are often transformers connected to 10kV lines and they do cause a lot of problems - the hum frequency could be 150 Hz, with 300Hz and 450Hz also significant. Those are all very audible.

If the level is high enough it could be causing problems with the front end of the modem where there is normally a built in filter - breaking through the filter and causing issues.

If the noise is on all lines then you ALL need to get together and raise te problem with BT - they can then work back along te line to find teh source of interference and then arrange for the problem to be dealt with - might not be BT plant at fault but they will sort out power companies or individuals that are causing interference.

Ok, well I've just gone along the line, and Ironically the only 11kv transformer anywhere near a BT cable is our own, and its only near our cable. If it was that, could it feed back down the line and interfere with everyone else's lines?

The frequency of the buzz is 495-498Hz according to my app, With the fence pulsing at 2600Hz.

Also, so say there are 7/8 inhabited places being served at this point on the UG cable, and if everyone was with a different phone/Internet provider, how do you go about banding together against BT?

Thanks, JF.

You are not going to band together AGAINST BT. You need to work with BT as it is unlikely that their plant will be the cause and if it is they will fix it.

Get all of you neighbours to give you their numbers and who they are with - I would guess a majority will be with BT. Find one who is a business customer and get them to report the problem and to reinforce the fact that you are all affected. Rather than have a Technician out you need to get the customer service adviser to get a supervisor or manager on the line and at that point go through the problem affecting all 10 houses. Get an email address and send your list to him saying that you have permission from all concerned to raise the problem.

Then take it from there.

Just to remind them, I assume it is a pure voice problem that is to be raised? No mention of broadband.

If it was that, could it feed back down the line and interfere with everyone else's lines?

yes, electricity is bidirectional.

Like MHC says, each customer with a hum on their line needs to raise the hum issue with their telephony provider, these will arrive at Openreach and hopefully someone will spot a pattern, or 10 vans will turn up on the same day and realise there's an issue.

You are not going to band together AGAINST BT. You need to work with BT as it is unlikely that their plant will be the cause and if it is they will fix it.

Thank you, saves me the bother of typing this exact statement.

In reply to a post by Zarjaz:

You are not going to band together AGAINST BT. You need to work with BT as it is unlikely that their plant will be the cause and if it is they will fix it.

Thank you, saves me the bother of typing this exact statement.

Sorry for any offence caused, it was not intentional. I would go back and edit my post, but I appear to be out of time.

Just remembered what the one of the engineers said, he said its still buzzing with my line disconnected and the tester plugged in at the UG/overhead junction box.

So who knows, fingers crossed for Monday.

Thanks, JF.

Well I just thought I'd update this thread...

BT have surpassed themselves today, after waiting just over a week for an Openreach broadband boost engineer appointment, and after checking twice it had definitely been booked, it turns out they managed to magically fix the fault without even visiting, therefore they didn't need to bother to turn up today, or to let me know.

Unfortunately its not really fixed, they didn't really do anything, or try to contact me (which apparently they did, unlikely since the place has been occupied 24/7 for the past month...). So that is a total of 8 days wasted staying here on bt appointment days, 3 of which nobody even turned up! I wouldn't mind so much, but that's 8 days of work lost...

JF.

and I would have to get TalkTalk to send out a Bt Openreach Broadband engineer, I wasnt keen seeing as over the past 3 months and countless phonecalls to TalkTalk Technical Support I have found them to be insanely inconsistent as to what they would do. But I landed lucky, and the guy begrudgingly booked an engineer for a week on Monday.

What did the guy "begrudgingly" book? A phone fault/engineer, or broadband? What did you tell him, and ask for?

I'm also still puzzled by:-

its not a hugely beefy fence unit, its only doing a small chicken run, but I suspect the problem is largely because its a net, and the net goes right to the floor, that every pulse will be going to ground.

I gather from "the only 11kv transformer anywhere near a BT cable is our own" that it is your fence? So why not just turn it off and see what happens?

You also imply earlier that it wasn't like this in the past. So when was the fence installed, in relation to the noise starting?