I need to use this Key FOB >> http://www.sparkfun.com/products/8602 and at the other part im looking forward to some tranceiver that supports RSSI so as a cheap though loose on accuracy distance measurement and communication can be established.
Can you suggest what should i be looking for in such a tranceiver that works with this nordic nRF24L01+ radio in it , i mean basically the tranceiver frequency must match but is it suffiecient to make this nRF24L01+ radio work with any other RSSI supporting Radio RF module within its matching frequency?