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Old 22-04-2004, 21:33   #5
erol
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Location: cyprus
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Re: Build your own free space optics data link

Quote:
Originally Posted by altis
Yep, the radiated power limit defined by ETSI is 100mW EIRP (or +20 dBm). I think that applies across the whole of Europe. Because, in America, they define the transmitter power instead, the limits are effectively much higher. Some details here:
http://www.cisco.com/application/vnd...00800a912a.xls
http://www.cisco.com/warp/public/102...re-us-calc.xls
OFCOM is currently looking at increasing the limits for outdoor use in rural / remote areas (200mw has beem suggested)
Also it's worth noting that 5.8ghz band C has an outdoor limit of 2w - though there is a 'light licensing' requirment to use this and compliant kit is a bit thin on the ground right now
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