[MLB-WIRELESS] 802.11b channels question...

[paul van den bergen]

On Thu, 8 May 2003 04:26 pm, paul van den bergen wrote:
> all my looking on the ACA website seems to suggest that the lisenced band
> is 2.400 to 2.4835 GHz, and the ISM band is 2.400 to 2.500 GHz.
> new power determination at...
> http://www.aca.gov.au/aca_home/legislation/radcomm/class_licences/spread200
>2.htm
>
> check out the pdfs on this page...

the interesting thing about this document is that it specifies 2 EIRP limits - 
500 mW for FHSS and 4W for non-FHSS - but I also get the idea (and will have 
to read again when not tired) that there is a device manufactured on 
disclaimer... e.g. old devices are still allowed (required? to opperate under 
old rules? On re-reading, that seems to be the case - manufactured, imported 
or modified after commencement 2002, between 1996 old rules and 2002 new 
rules still abide by old rules.

this is interesting. I have an old 802.11 card - it outputs 650 mW.

this is legal under the old rules (4W for ch 1-9, 200mW for ch 10-13) for ch 
1-9 for both fhss and dsss, but illegal now, (4W for ch 1-13 for non-FHSS, 
200mW for FHSS)



-- 
Dr Paul van den Bergen
Centre for Advanced Internet Architectures
caia.swin.edu.au
pvandenbergen at swin.edu.au
IM:bulwynkl2002
"And some run up hill and down dale, knapping the chucky stones 
to pieces wi' hammers, like so many road makers run daft. 
They say it is to see how the world was made."
Sir Walter Scott, St. Ronan's Well 1824 

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