Dave
I have had ADSL filters and modems fail. Even a passive device will fail
given a high enough level of static build-up on the lines - I guess it's a
capacitor breaking down. After my third modem failure, I built my own
phone-line protector box with some chunky transient suppressor VDRs.
73
Tom G3OLB
----- Original Message -----
From: "Dave Sergeant" <[email protected]>
To: <[email protected]>
Sent: Monday, June 18, 2007 6:43 AM
Subject: Re: LF: Mike's "ADSL problem"
Alan, those sorts of problems are certainly due to dodgey switch mode
psus in equipment and fairly common. You and Mike should be looking
in that direction and not blaming ADSL. I would not expect problems
from ADSL as it is a balanced system and should not radiate very far
at all. You would only get any radiation if there is a dodgey
telephone connection somewhere, say in the overhead lines, where the
twin pairs have been accidentally split between two separate pairs so
the two lines do not run parallel - very rare but has been known to
happen. It most certainly will not be a dodgey ADSL filter as the
broadband signal is not filtered at all in those, only the telephone
side is filtered (and I doubt whether they ever fail despite all the
suggestions to change them when you have a fault, as passive devices
there is nothing inside them to fail...).
So look very seriously at those smpsu's, wallwarts etc.
73 Dave G3YMC
http://www.davesergeant.com
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