In reply to a post by fourtytwo:

In reply to a post by eckiedoo:

Could the pig units have some form of automated feeding; or sludge clearance at the other end of the natural cycle?
The frequencies you have given are in themselves clearly above audio frequencies, which in conjunction withe the QLTs being apparently fine, suggest that it might (only might) be interfering via the power supply/main adaptor for the modem/router, rather than the phone line/broadband connection route.
I suggest you try an EMI/RF Filter in your mains connection - often incorporated in to multi-way mains extensions; and relatively cheap.

The trouble is pig units are bio sealed and the farmer naturally doesn't take kindly to visitors however I will endevour to have a chat at some stage but to him EMI is a bit meaningless.
Long ago I fitted ferrites to the router power supply lead with no apparent effect.

You say that long ago you fitted "ferrites" to the router PSU lead , but ferrite rods are or used to be fitted to radio`s and coil wound for internal aerial use.?
Are they still fitted to the PSU lead.?

You say that long ago you fitted "ferrites" to the router PSU lead , but ferrite rods are or used to be fitted to radio`s and coil wound for internal aerial use.?
Are they still fitted to the PSU lead.?

Sorry Ironman I didn't make my answer clear, they are the split click together ferrite cores designed to filter EMI, I actually fitted two for good measure, they act as common mode chokes, you often see them molded into power cords or have some heat shrink around them, quite effective. Ohh yes they are still fitted.

PS I wish I could make the quote system work, still learning

In reply to a post by ironman12345:

You say that long ago you fitted "ferrites" to the router PSU lead , but ferrite rods are or used to be fitted to radio`s and coil wound for internal aerial use.?
Are they still fitted to the PSU lead.?

I guess he's talking about fitting a clip on ferrite (or similar) to the cable. The inductor that results helps to stop the cable acting as an antenna for unwanted high frequency signals.

Many cables have moulded on ferrites these days - they're the 'lumps' moulded on to the cable.


I'm a radio amateur, and sometimes find it necessary to wind audio frequency cables around a ferrite ring to prevent unwanted RF pickup.

NP yes they are used in mains power cords , I got confused a bit there.
Ferrite is very handy for choke use.
Sorry.

In reply to a post by David_W:

In reply to a post by ironman12345:

You say that long ago you fitted "ferrites" to the router PSU lead , but ferrite rods are or used to be fitted to radio`s and coil wound for internal aerial use.?
Are they still fitted to the PSU lead.?

I guess he's talking about fitting a clip on ferrite (or similar) to the cable. The inductor that results helps to stop the cable acting as an antenna for unwanted high frequency signals.

Many cables have moulded on ferrites these days - they're the 'lumps' moulded on to the cable.


I'm a radio amateur, and sometimes find it necessary to wind audio frequency cables around a ferrite ring to prevent unwanted RF pickup.

Sorry David_W I got a bit confused there. I agree ferrite "rings" can bloke certain frequencies and "rods" can be used for the opposite.?

In reply to a post by ironman12345:

Sorry David_W I got a bit confused there. I agree ferrite "rings" can bloke certain frequencies and "rods" can be used for the opposite.?

Ferrite plus wire makes an inductor. How that inductor is placed in circuit determines what role it plays.


A ferrite added to a cable is, in essence, a low pass filter - it blocks high frequencies.

If you wind a coil around a ferrite rod and place a tuning capacitor across it, you have an LC tuned circuit, which can be used used as part of a simple LF or MF radio. Add a 'crystal' (diode), a high impedance earpiece and one resistor and you have a crystal set.

BT/Openreach have people who handle REIN cases but trying to contact them is the main problem.

The simple truth is that the CP providing the affected broadband service needs to raise an SFI task, the visiting engineer then performs various tests, and if they believe there is a REIN issue, they will raise a REIN case for a REIN trained/equipped engineer to visit.


I might add that the OP's issue doesn't sound like a REIN fault to me, sounds like a good old fashioned noisy line.

and request the drop wire is replaced.

Openreach won't just come out and replaced their spans on your say-so.

In reply to a post by David_W:

In reply to a post by ironman12345:

Sorry David_W I got a bit confused there. I agree ferrite "rings" can bloke certain frequencies and "rods" can be used for the opposite.?

Ferrite plus wire makes an inductor. How that inductor is placed in circuit determines what role it plays.


A ferrite added to a cable is, in essence, a low pass filter - it blocks high frequencies.

If you wind a coil around a ferrite rod and place a tuning capacitor across it, you have an LC tuned circuit, which can be used used as part of a simple LF or MF radio. Add a 'crystal' (diode), a high impedance earpiece and one resistor and you have a crystal set.

Yes! I understand that David_W, I am nearly 80 and have built crystal sets.
Before that was the simple "Cats Whisker" but reception was very limited and crystal sets could only tune within the range of the crystal, fun though at least back then.
Still build electronic items [microelectronics] mainly PC systems.

But I guess this is not helping the OP, interesting though.

Edited by deleted (Mon 22-Aug-16 22:26:09)

In reply to a post by fourtytwo:

PS I wish I could make the quote system work, still learning

Click the quote button on a post that contains a quote and to will see how it is done. You can also edit the quote before posting - as you can see I removed most of your post .

You can also use anything you have copied to your clipboard from any source. Just the [ then q then ] to open and nearly the same to close, just /q instead of q .