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Old 01-02-2005, 09:58 PM
whetu whetu is offline
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Join Date: Dec 1969
Location: Petone, Wellington
Posts: 266
Default Re: need expert help

Quote:
well i want to know how far this gear will reach from my house to as far as i need and was just wondering how far that would actually be, I will use a 54mbit Linksys AP going into a DSE 2.4ghz booster then to a 24DBi Parabolic Dish On My Roof Hor far would this reach,
Just something to think about, that booster is pumping ~27dB into a 24dB antenna, which is a radiated power of 51dB. Take some cable loss into account and we'll call it 47dB

This is still above the eirp of 36dB/4W, so it's illegal. Even DSE say the following about the booster:
"In some instances, the use of this high gain booster may exceed allowable RF emission limits. It is the responsibility of the user to ensure they comply with local legislation."
http://www.dse.co.nz/cgi-bin/dse.storefron.../product/XH6825

This is all off the top of my head of course, do some reading on link budgeting.

To answer your question, 24dBi antennas are generally used in the 5km+ link range
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