Hello everybody,
No soner do we fix one line problem, than another very strange one appears !
This one might have a "Likely metallic bearer fault" on another very long line that has just been de-DACSed.
Yes, I have checked that the two output lines from the DACS unit have both been removed although the input cable hasn't.
(@ezzer - this was a nice one for BT as we ceased the other line at the same time.)
Three times in 24 hours we've had an unexpected BT Speed test result as shown below.
On other occasions, immediately afterwards, the BT test logic works perfectly.
Can anybody shed any light on what the BT error might be?
Three, different, times in 24 hours the line has dropped and re-synced at the same 704 kbps within 15 to 30 seconds.
Noise margin values are quite good for this distance usually staying constant at 7 dB + / - 0.5 dB and often being absolutely constant for 5 or 10 minutes. Line attenuation is said to be 62.5 dB but as the house is another 30 m on from the last one which had an attenuation of 82 dB at 300 kHz we know the 62.5 figure is grossly under-stated. We're using the standard Thompson 585V7 modem.
BT speed test results vary between 34 kbps to about 350 kbps - however these results must be observed with care.
I'm doing the tests remotely using logmein and logging off immediately I've started the test.
I also don't know if the end user is using the line at the same time.
Kind regards,
Walter
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