Data via wire and/or RF?

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Subject Author Date
Data via wire and/or RF? Wayne Lundberg 05-22-2006
Posted by Wayne Lundberg on May 22, 2006, 12:50 pm
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I'm guessing that I could send/receive more data via twisted cable than I
could by IR or RF?

I'm thinking of that missile they control with a wire as the missile goes
toward a laser dot on the target. Tremendous amount of data being sent and
received via a simple two wire. Am I wrong?

Thanks!



Posted by The Artist Formerly Known as K on May 22, 2006, 1:35 pm
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Wayne Lundberg wrote:
> I'm guessing that I could send/receive more data via twisted cable than I
> could by IR or RF?
>
> I'm thinking of that missile they control with a wire as the missile goes
> toward a laser dot on the target. Tremendous amount of data being sent and
> received via a simple two wire. Am I wrong?
>
> Thanks!
>
>

At least with off-the-shelf equipment, I would imagine this is true.

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Posted by Padu on May 22, 2006, 1:49 pm
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"The Artist Formerly Known as Kap'n Salty"
>
> At least with off-the-shelf equipment, I would imagine this is true.
>

I believe this is consistent with Shannon's information theory. Given
stereotypical environments, it is intuitive that the communication channel
of RF or IR is much more susceptible to noise than a solid conductive
medium.

Cheers
Padu



Posted by J. Clarke on May 22, 2006, 4:56 pm
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Wayne Lundberg wrote:

> I'm guessing that I could send/receive more data via twisted cable than I
> could by IR or RF?
>
> I'm thinking of that missile they control with a wire as the missile goes
> toward a laser dot on the target. Tremendous amount of data being sent and
> received via a simple two wire. Am I wrong?

I believe if you investigate you'll find that the intelligence is mostly in
the sight, that detects the degree to which the missile has diverged from
its course and issues appropriate steering commands.

> Thanks!

--
--John
to email, dial "usenet" and validate
(was jclarke at eye bee em dot net)

Posted by Wayne Lundberg on May 22, 2006, 6:11 pm
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> Wayne Lundberg wrote:
>
> > I'm guessing that I could send/receive more data via twisted cable than
I
> > could by IR or RF?
> >
> > I'm thinking of that missile they control with a wire as the missile
goes
> > toward a laser dot on the target. Tremendous amount of data being sent
and
> > received via a simple two wire. Am I wrong?
>
> I believe if you investigate you'll find that the intelligence is mostly
in
> the sight, that detects the degree to which the missile has diverged from
> its course and issues appropriate steering commands.
>
> > Thanks!
>
> --
> --John
> to email, dial "usenet" and validate
> (was jclarke at eye bee em dot net)

Sure, but vision requires a huge amount of data transfer and still don't
know for sure which method would allow the faster exchange of data from
point a to point b in both visual and control situations. I see a thin wire
come into my home going to a box under my TV carrying over 900 channels plus
three computers in my home on high speed internet on that same little wire
carrying music and video. Could that be done with RF?



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