Hi Anand,

The first thing I would do, given your low power requirements, is check
out the rfPIC series.  I've never used them because of their low TX
power capabilities (somewhere around 2 dbm if I remember correctly), but
they're probably your best bet.

You're right, the TX circuits are much simpler.  For a possible RX
solution you might want to check out MICRF001BM.  I haven't priced them
in a while but I think they're somewhere around $5 in low quanities
(once again, not sure though).

Is this a one-way thing or do you need transceivers?

Regards,
Adam Smith

> -----Original Message-----
> From: adam-request@viratech.com [mailto:adam-request@viratech.com] On
> Behalf Of Anand Dhuru
> Sent: Monday, June 24, 2002 9:01 AM
> To: PICLIST@MITVMA.MIT.EDU
> Subject: Re: [OT]: RF Transmitter, Receiver
>
> Folks, I need a transmitter, receiver to integrate in a product, where
the
> range required is minimal (not more that 10 feet). Also, the bandwidth
> requirement is exremely minimal; a few bytes to be sent every few
minutes.
>
> The criticality is more to do with the economics involved. I cant
> therefore think of using pre-assembled rf modules like the Ming
series.
>
> Considering the modest range and bandwidth requirements, I am tempted
to
> use my own receiver and transmitter, integrated on the PIC PCB, for
the
> project.
>
> Are there any 300 MHz or 418 MHz circuits on the internet to do this?
I
> have the circuit for the transmitter, which is extremely simple in
design,
> and I'm hoping someone can help with the receiver schematic.
>
> Thanks and regards,
>
> Anand Dhuru
>
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