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'[PICLIST] [EE][PIC]: Radio modules'
2000\06\25@144204 by Andrew Seddon

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Hi.

There was a thread a couple of weeks ago about encoding data with radio
modules. I said I would post some code when I got it done. Trouble is i`m
sitting here trying to do it know and it`s driving me crazy, I was wondering
how any of the others attempting it got on.

BTW Anybody know of some radio modules (transcievers) that are cheaper than
the radiometrix ones?? I`m not really interested in anything more
complicated than data in RF out, 0 external components!! being lazy I know.

Cheers. . Andrew Seddon

2000\06\25@150103 by Dan Michaels

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Andrew Seddon wrote:
......
>BTW Anybody know of some radio modules (transcievers) that are cheaper than
>the radiometrix ones?? I`m not really interested in anything more
>complicated than data in RF out, 0 external components!! being lazy I know.
>

Andy, I started a list of companies that sell cheap RF modules on
my site. Another one, not listed, is Ramsey Electronics.

http://www.sni.net/~oricom/teklink2.htm

best regards,
- Dan Michaels
Oricom Technologies
===================

2000\06\25@150937 by Andrew Seddon

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> Andy, I started a list of companies that sell cheap RF modules on
> my site. Another one, not listed, is Ramsey Electronics.
>
> http://www.sni.net/~oricom/teklink2.htm


Thanks, looks like your site will be usefull for a lot of things.

2000\06\25@200415 by David Huisman

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Andy,

How could our site be added to your list ?

http://www.orbitcoms.com

regards
David Huisman
Orbit Communications
spam_OUTinfoTakeThisOuTspamorbitcoms.com
NSW
Australia

2000\06\26@084022 by Shawn Yates

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       We have just switched from Radiometrix to Innomedia.  The price is
the same, but the innomedia uses 900 or 2.4Ghz Spread Spectrum for the same
price, and they move at 96K or 250K.  The implimentation is a little tough,
but I am more than willing to share.

Shawn


{Original Message removed}

2000\06\26@103600 by Andrew Seddon

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>         We have just switched from Radiometrix to Innomedia.  The price is
> the same, but the innomedia uses 900 or 2.4Ghz Spread Spectrum for the
same
> price, and they move at 96K or 250K.  The implimentation is a little
tough,
> but I am more than willing to share.
>

Thanks.. Out of interest which modules do you use? I had a look on their
website but there seemed to be no clear winner. They do however all seem
pretty complicated, obviously a result of spread spectrum. Have you looked
into Bluetooth at all? I gather that the chips can be upped to 100mw at
2.4ghz so that should give reasonable range. I had a look a couple of weeks
ago but again all seems pretty complicated.

Andrew Seddon.

2000\06\26@105327 by Shawn Yates

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I have been following BlueTooth for a while, but have not condsidered using
it for our comm because I dont need that much overhead in protocol.

       Their web site is not the best.  You have to find the OEM secion and
look there.  There are basicaly 4 radios there are two baud rates (96K or
250K) and two freqs (900 and 2.4).  Thats all.  I use the 2.4G/96K
transceivers because I need bidirectional comm.  The sensativity is not as
great as the BIM, but the output is much better.  Though the power
consumption is MARKEDLY higher ( about 100mA stand-by and 200mA transmitt).
Power consumption is not a concern for us so it didnt matter.

Transceiver http://www.innomedia.com/wireless/products/spread_spectrum.html

TX/RX units http://www.innomedia.com/wireless/products/lowcost_spread.html



{Original Message removed}

2000\06\26@160532 by Edson Brusque

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Hello Shawn,

>         Their web site is not the best.

   Yes, there seens to be a bug with their online store.

>  You have to find the OEM secion and
> look there.  There are basicaly 4 radios there are two baud rates (96K or
> 250K) and two freqs (900 and 2.4).  Thats all.  I use the 2.4G/96K
> transceivers because I need bidirectional comm.  The sensativity is not as
> great as the BIM, but the output is much better.  Though the power
> consumption is MARKEDLY higher ( about 100mA stand-by and 200mA
transmitt).
> Power consumption is not a concern for us so it didnt matter.

   Can you please tell me how much does these devices costs?

   Thanks,

   Brusque

-----------------------------------
Edson Brusque
Research and Development
C.I.Tronics Lighting Designers Ltda
(47) 323-2685  /  (47) 9993-6453
Blumenau  -  SC  -  Brazil
-----------------------------------

2000\06\26@162435 by Shawn Yates

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       I have been paying $70 each, plus shipping from Tiawan.  you have to
wire transfer the money before they ship the product.  We have been doing
that for a few months and have had no problems.

Some Contacts:
       Maurice Chan [.....wychanKILLspamspam@spam@innomedia.com.tw] - Sales
       Hsieh, Sheng-Cheng [schsiehspamKILLspaminnomedia.com.tw] - Tech Support

If you get them and want to see the code I used to initialize them and get
things started, let me know.  If you have the PDF file, you have all the
documentation that there is.  Its kind of sparse.

Shawn

2000\06\27@003045 by Harold Hallikainen

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Note also that the FCC just released a public notice on transferability
of certification of RF modules. See

http://hallikainen.com/cgi-bin/wp2html.pl?http://www.fcc.gov/Bureaus/Engi
neering_Technology/Public_Notices/2000/da001407.doc

(watch out for url wrap).

Harold

On Sun, 25 Jun 2000 12:59:27 -0600 Dan Michaels <.....oricomKILLspamspam.....LYNX.SNI.NET>
writes:
{Quote hidden}

________________________________________________________________
YOU'RE PAYING TOO MUCH FOR THE INTERNET!
Juno now offers FREE Internet Access!
Try it today - there's no risk!  For your FREE software, visit:
dl.http://www.juno.com/get/tagj.


'[PICLIST] [EE][PIC]: Radio modules'
2000\07\03@040451 by Harold Hallikainen
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Note also that the FCC just released a public notice on transferability
of certification of RF modules. See

http://hallikainen.com/cgi-bin/wp2html.pl?http://www.fcc.gov/Bureaus/Engi
neering_Technology/Public_Notices/2000/da001407.doc

(watch out for url wrap).

Harold

On Sun, 25 Jun 2000 12:59:27 -0600 Dan Michaels <EraseMEoricomspam_OUTspamTakeThisOuTLYNX.SNI.NET>
writes:
{Quote hidden}

________________________________________________________________
YOU'RE PAYING TOO MUCH FOR THE INTERNET!
Juno now offers FREE Internet Access!
Try it today - there's no risk!  For your FREE software, visit:
dl.http://www.juno.com/get/tagj.

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