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are there any decent infrared transceivers still around?

 
 
danny burstein
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      12-18-2009, 08:09 AM
I'm helping set up some systems in a large open office
where there's _lots_ of RF in the area, messing up 802.11.

Running ethernet cable to each desk is pretty painful.

Way, way, back there were infrared transceivers you could
hook up for data transmission. True, they were quite slow
by today's standards...

Any suggestions for something avaiable today? Speed isn't
too critical as these are mostly work stations with text
material back and forth.

Thanks.

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atec 7 7
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      12-18-2009, 11:03 AM
danny burstein wrote:
> I'm helping set up some systems in a large open office
> where there's _lots_ of RF in the area, messing up 802.11.
>
> Running ethernet cable to each desk is pretty painful.
>
> Way, way, back there were infrared transceivers you could
> hook up for data transmission. True, they were quite slow
> by today's standards...
>
> Any suggestions for something avaiable today? Speed isn't
> too critical as these are mostly work stations with text
> material back and forth.
>
> Thanks.
>

have you scanned the 5.8 gig which has free space and cheap routers
 
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danny burstein
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      12-18-2009, 06:05 PM
In <hgfr1j$t7l$(E-Mail Removed)> atec 7 7 <"atec 77"@hotmail.com> writes:
>>
>> Thanks.
>>

>have you scanned the 5.8 gig which has free space and cheap routers


Not specifically but it's likely to be busy as well. The RF in
the room is caused by lots and lots of motors and motor-gnerators
and other big electrical nasties...

Think of Dr. Frankenstein's laboratory. During a thunderstorm.

But I will see if I cn hobble up a couple of 802.11a sets and see
if it's any better. thanks


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DevilsPGD
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      12-18-2009, 06:06 PM
In message <hgfgsq$t5v$(E-Mail Removed)> danny burstein
<(E-Mail Removed)> was claimed to have wrote:

>I'm helping set up some systems in a large open office
>where there's _lots_ of RF in the area, messing up 802.11.
>
>Running ethernet cable to each desk is pretty painful.
>
>Way, way, back there were infrared transceivers you could
>hook up for data transmission. True, they were quite slow
>by today's standards...
>
>Any suggestions for something avaiable today? Speed isn't
>too critical as these are mostly work stations with text
>material back and forth.


The problem with IR is that any time anyone walks by the transceiver,
everyone loses their connection.

Honestly, I doubt you'll be happy with this solution long term.
 
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atec 7 7
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      12-18-2009, 08:09 PM
danny burstein wrote:
> In <hgfr1j$t7l$(E-Mail Removed)> atec 7 7 <"atec 77"@hotmail.com> writes:
>>> Thanks.
>>>

>> have you scanned the 5.8 gig which has free space and cheap routers

>
> Not specifically but it's likely to be busy as well. The RF in
> the room is caused by lots and lots of motors and motor-gnerators
> and other big electrical nasties...
>
> Think of Dr. Frankenstein's laboratory. During a thunderstorm.
>
> But I will see if I cn hobble up a couple of 802.11a sets and see
> if it's any better. thanks
>
>

Maybe you know someone with a suitable spec analyser although testing by
running is the best , there is modulated laser but it costs other than
that sheilded cat6
 
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alexd
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      12-24-2009, 02:49 PM
Meanwhile, at the alt.internet.wireless Job Justification Hearings, Peter
Pan chose the tried and tested strategy of:

> umm it's sending digital packets over the wire that happens to be a
> powerline, why would any rf noise effect those digital packets, any more
> than digital packets over an ethernet wire?


Ethernet will be twisted pair, whereas powerline won't. Also, you can get
shielded ethernet.

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