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PICList Thread
'rf link'
1996\04\03@055654 by nogueira

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face
Hi

I'm new here and I saw a few day ago a discution about rf transmiter,
well I saw an ad of the company Radio Tech Limited ofering transmiters
and receivers  that drives directly from o PIC output port and transmit
and receive up to 20.000 bps in the frequency of 433.92MHz.
The only problem is that the company is in UK, if anyone is interested:

Radio-Tech Limited, Overdrive House, Weald Hall Lane
Thornwood Common, Epping, Essex CM16 6NB
Sales +44 (0) 181 368 8277 Fax +44 (0) 181 361 3434
International +44 (0) 1992 57 6107 Fax +44 (0) 1992 56 1994

Octavio
spam_OUTnogueiraTakeThisOuTspammandic.com.br


'RF link'
1997\09\28@042220 by Tam Kin Ming, Derek
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face
Hi,
Any schematic and good sites of how to build a RF RS232 link?
Tam Kin Ming, Derek

1997\09\28@125731 by athan Jhonson......KC7JHO

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face
Ham Radio Packet is just such a link but becaus of the fcc there are many
restrictions.

KC7JHO
ICQ# 3044899
Ham Radio, It's not just for Talking any more!

-----Original Message-----
From: Tam Kin Ming, Derek <.....kmtamKILLspamspam@spam@HKNET.COM>
To: PICLISTspamKILLspamMITVMA.MIT.EDU <.....PICLISTKILLspamspam.....MITVMA.MIT.EDU>
Date: Sunday, September 28, 1997 5:22 AM
Subject: RF link



>Hi,
>Any schematic and good sites of how to build a RF RS232 link?
>Tam Kin Ming, Derek
>

1997\09\29@103240 by Martin R. Green

picon face
By definition, an RF link would not be RS232 (even if it used the RS232
UART protocol).  I presume you mean RF serial link?  Check out this site
for self contained SAW transmitters and receivers (the only way to go these
days).  Very easy to use, and fully legal.

   http://www.rfm.com/


HTH - Martin R. Green
EraseMEelimarspam_OUTspamTakeThisOuTbigfoot.com

----------
From:   Tam Kin Ming, Derek[SMTP:kmtamspamspam_OUTHKNET.COM]
Sent:   Sunday, September 28, 1997 4:11 AM
To:     @spam@PICLISTKILLspamspammitvma.mit.edu
Subject:        RF link

Hi,
Any schematic and good sites of how to build a RF RS232 link?
Tam Kin Ming, Derek

1997\09\29@131803 by William Chops Westfield

face picon face
Has anyone used the RF links from "linx" ?

BillW

1997\09\29@142132 by ndie Ohtsji [4555]

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I got a few of their modules and tried them out with some Motorola
Encoder/Decoder chips (MC145026/MC145027) to transfer 4bits of data.
The next step I'm going to take is using them as an RF link with
PIC chips.....sorry haven't done that yet.

The modules work pretty good and give good range.  Linx states that
the modules are good for 500-800 ft at 5Khz, but I maxed out at about
700-800 meters (2100-2400ft) at 2Khz data transmission.  These were
bursts of small data and coverage was in an open field.  Larger chunks
may not do so well.  I'm planning on duplicating this with PIC chips
(PIC16F84s).

Any other PICsters out there using these modules???


-Randie


> From KILLspambillwKILLspamspamCISCO.COM Mon Sep 29 10:19:21 1997
> Date:         Mon, 29 Sep 1997 10:17:27 PDT
> From: William Chops Westfield <RemoveMEbillwTakeThisOuTspamCISCO.COM>
> Subject:      Re: RF link
> To: spamBeGonePICLISTspamBeGonespamMITVMA.MIT.EDU
>
> Has anyone used the RF links from "linx" ?
>
> BillW
>

1997\09\29@190825 by Engineering Department

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<Martin Green writes>
> By definition, an RF link would not be RS232 (even if it used the RS232
> UART protocol).  I presume you mean RF serial link?  Check out this site
> for self contained SAW transmitters and receivers (the only way to go
these
> days).  Very easy to use, and fully legal.
>
>     http://www.rfm.com/

Odd site, or I missed something.  They give absolutely
no indication what their stuff costs.

It's awfully annoying to have to waste a whole bunch of
time to beg a price out of someone.

Cheers,

Win Wiencke
Image Logic Corporation
TakeThisOuTImageLogicEraseMEspamspam_OUTibm.net


'RF link'
1997\10\01@045508 by Mark Hellman
picon face
There is an indication of the price. The development kit costs $350

Mark

-----Original Message-----
From:   Engineering Department [SMTP:RemoveMEimagelogicspamTakeThisOuTIBM.NET]
Sent:   Monday, September 29, 1997 4:54 PM
To:     PICLISTEraseMEspam.....MITVMA.MIT.EDU
Subject:        Re: RF link

<Martin Green writes>
> By definition, an RF link would not be RS232 (even if it used the RS232
> UART protocol).  I presume you mean RF serial link?  Check out this site
> for self contained SAW transmitters and receivers (the only way to go
these
> days).  Very easy to use, and fully legal.
>
>     http://www.rfm.com/

Odd site, or I missed something.  They give absolutely
no indication what their stuff costs.

It's awfully annoying to have to waste a whole bunch of
time to beg a price out of someone.

Cheers,

Win Wiencke
Image Logic Corporation
EraseMEImageLogicspamibm.net

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