Any reference design or helping material available?

Thanks for answering so quick.

If you can please refer me to some sample working project design of such circuit that would be very helpful.

Designing and tunning the rf circuit seems to be little tough for me. What would you say about using a ready made rf transceiver module with rs232 or other interface to microcontroller.

Best Regards
Dani

Take a look at this site Radiometrix - Radio Modules - RF Modules - Wireless Modules

Thanks a lot.
Can these module tell the signal strength to know if a deivce goes out of range.

---------- Post added at 16:25 ---------- Previous post was at 16:24 ----------

Thanks a lot.
Can these module tell the signal strength to know if a device goes out of range.