On Mon, 15 May 2000, Jill Rowling wrote:
> I was involved many years back with a commercial installation of 2Mb/s
> microwave equipment (used a dish antenna) and laser equipment.
> Both worked; both were line of sight.
> The laser stuff was more fiddly to set up and suffered from loss of signal
> as the buildings moved (thermal expansion) so we eventually gave up on it.
> The microwave gear was good, but sometimes failed on misty days as it was
> absorbed by the water droplets. Strangely enough it was OK on rainy days,
> although the signal was definitely down.
I had heard once about a problem with either a laser or microwave
link that would disappear at the same time each day.
There was a great effort spent in working out what caused this until
someone noted that at the particular time the link went down,
a little spider would move out onto its web - blocking the link!
rachel
Rachel Polanskis University of Western Sydney, Nepean
Senior UNIX Admin PO Box 10, Kingswood NSW 2747
Systems && Operations Information Technology Services, Kingswood
[EMAIL PROTECTED] Phone: +61 (0247) 360 291
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