Try this linkk for more info
http://rfdesign.com/products/5GHz-RFICs-cut-costs/

"Mobile Radio Specialist" wrote in message
om...
The next generation of cordless telephones
will operate at the 5.8 GHz

The frequency range is either
5.725-5.825 GHz or 5.725-5.850 GHz

Google "5.8 GHz cordless phones" for more info.