Slow radio downloads - a bit off topic

[Jim web]

In article <57D011C2-EA1B-41E2-8E51-2C20F6E5AA46 at cantab.net>, Owen
Smith
<owen.smith at cantab.net> wrote:
> Did anyone check if your mysterious line drops and restarts coincided
> with the shifts of any particular cleaner? You know, the one that
> unplugged the dslam in order to plug the hoover in (don't laugh, crap
> like this happens).

Can't say if they checked with their cleaners! But I'd have assumed
anything like that would have been phased to the clock rather than to
sunset. But for all I know, vampires make cheap and efficient office
cleaners. The snag being the problems always showed whilst the Sun was
still up. :-)

In a totally different context the closest similar experience I had was
with a high voltage dc PSU (8kV) that used to switch off at odd times. This
was in a 19inch rack cabinet.

We finally tracked it down to an optical sensor on the back door of the
cabinet. For safety reasons this was to trip off the 8kV if the back was
opened. At some points in the day the daylight was somehow squeezing in
through the gap in the door and hitting the sensor. Despite the door being
almost up against the wall.

Jim

-- 
Electronics  http://www.st-and.ac.uk/~www_pa/Scots_Guide/intro/electron.htm
Armstrong Audio  http://www.audiomisc.co.uk/Armstrong/armstrong.html
Audio Misc  http://www.audiomisc.co.uk/index.html