Subject:
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RE: IR outputB
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Newsgroups:
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lugnet.robotics.handyboard
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Date:
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Thu, 25 Feb 1999 06:32:31 GMT
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Original-From:
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Mike Jones <[michaelj@wt.net]stopspam[]>
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Reply-To:
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MICHAELJ@WT.NETstopspammers
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Viewed:
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1083 times
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> I heard that radio waves do not need "line-of-sight" like IR does. Can
> someone with more exerience verify or dispute this? It makes sense since
> longer wavelengths of EMR can bounce off surfaces easier. So maybe your
> Lynx device is better.
It is not the bouncing off of things but the passing through them that makes
RF able to operate without line of sight. Line of sight gives greater distances,
though, even with RF. The Lynx Tx/RX will definately have a greater range than
the IR.
Unless the object standing between an IR source and the IR receiver is IR transparent
(like glass is to the visible light spectrum), IR cannot pass through it which
makes it line-of sight. Most things are NOT IR transparent but many are. In
fact many optically opaque objects are IR transparent which can cause all kinds
of trouble if your aren't carefull.
Mike
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Message has 1 Reply:
 | | Static sensitivity
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| I am starting to install I.C.'s on my board and I was wondering are any of the chip's on the handy board static sensitive? which is to say if I touch it I will destroy it, without having somekind of static gaurd. ___...___ Steve Wall Sir Sandford (...) (26 years ago, 26-Feb-99, to lugnet.robotics.handyboard)
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