AVR-Chat

Look at Digi.com - 900MHz $150 per radio with enclosure.
XBee at 2.4GHz or 900MHz in a box or as a bare module: not as robust,
but OK if you have line of sight or nearly so.

--- In AVR-Chat@yahoogroups.com, "Dean Claxton" <deanclaxton@...> wrote:
>
> Data rate is not an issue - 1kbps is more than enough in this instance.
> Basically it will be running remote warning signals.
> 
> Dean
> 
> On Tue, Jan 20, 2009 at 3:26 PM, dlc <dlc@...> wrote:
> 
> >   If you are outside and line of site Zigbee modules are good for that
> > distance if they use the higher power amp outputs (XBee Pro for
> > example), they are only a data rate of about 250Kbps however.
> >
> > DLC
> >
> >
> > Dean Claxton wrote:
> > > Hi all,
> > >
> > > I'm looking for recommendations as to a suitable wireless
technology that
> > > will allow data to be transmitted over distances up to 400m.
> > >
> > > Baud rate not a problem. It will be used outdoors around a
Quarry site.
> > >
> > > Any thoughts?
> > >
> > > Zigbee? Standard 433MHz stuff?
> > >
> > > Dean
> > >
> > >
> > > [Non-text portions of this message have been removed]
> > >
> > >
> > > ------------------------------------
> > >
> > > Yahoo! Groups Links
> > >
> > >
> > >
> >
> > --
> > -------------------------------------------------
> > Dennis Clark TTT Enterprises
> > www.techtoystoday.com
> > -------------------------------------------------
> >
> > 
> >
> 
> 
> 
> -- 
> Kind Regards
> Dean Claxton
> 
> 
> [Non-text portions of this message have been removed]
>