hi!

Why dont you test the data rates your self ???

Take a function generator, a scope and test it.
Connect the generator to the TX and one scope channel to it.
Connect the second scope channel to the RX.
Increase/descrease the output frequency og the generator, and see in the RX when the received signals start to fail.

This is how i test this modules. The datasheets are always very pessimistics !!  we always can TX more speed that they state !


Sena








> Hi-
> I have a pair of these too.  What kind of data rate did you get from them?
> I have ordered teh encoder/decoder pairs for fun too. :-)
> David
>
> Steve Glenner wrote:
>
> > I've purchased these units and am having good luck so far in building a
> > simple remote control application. I believe I'm getting close to the
> > rated range.
> > I did not buy their encoder/decoder chips but instead rolled my own
> > packet-based PIC code which seems to work pretty well, but the data rate
> > is pretty low.
> > The downside of these transmitter/receiver pairs are that they have a
> > pretty reactive AGC so you need to condition the signal at one or both
> > ends somewhat (this can be done by properly selecting
> > preamble/synchronization data). The bandwidth of these units is about
> > 2k.
> > The modules are tiny (probably made to fit the xmtr in a keychain
> > remote) and low power. They work best with an external antenna added,
> > but it does not need to be very long.
> >
> > steve
> >
> > -----Original Message-----
> > From: Ann & David Scott [mailto:andscott@LOGANTELE.COM]
> > Couldn't you use:
> > http://www.laipac.com/msg5.htm
> > 315, 418 & 433.92Mhz     8mW
> > $4.8 USD for each Tx or Rx.
> > They also sell encoder/decoder chips which make it easier.
> > Their datasheet is brief but shows circuit to make it work (worked for
> > me).
> >
> > --
> > http://www.piclist.com#nomail Going offline? Don't AutoReply us!
> > email listserv@mitvma.mit.edu with SET PICList DIGEST in the body
>
> --
> http://www.piclist.com#nomail Going offline? Don't AutoReply us!
> email listserv@mitvma.mit.edu with SET PICList DIGEST in the body
>
>
>


*********************************************************
Antonio Sergio Sena     CT2GPW
asena@bigfoot.com

BEng Electrical & Electronic Engineering
Heriot-Watt University - Edinburgh

Homepage: www.qsl.net/ct2gpw
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