Google (NSDQ: GOOG) is not giving up unlicensed spectrum, the so-called “white spaces”. It is going ahead filing its own testing results with the Federal Communications Commission, according to a filing today, picked up by Marketwatch. This comes as Google announced last week about its intentions to bid for the upcoming spectrum auction.

SEE ALSO: MSFT and Phillips Want More White Space Testing; Say Their Own Testing Is Successful

Google presented results of an “initial phase of ongoing trials” which it says “demonstrate that digital televisions… and wireless microphones can be amply protected.” Also, Microsoft (NSDQ: MSFT) and Philips have undertaken their own white spaces testing, according to Scott Blake Harris, an attorney representing the white spaces coalition.

Television broadcasters have contested efforts from Google, Microsoft and Phillips, saying that any use of these frequencies will create interference with other signals such as those from TV and microphones. An initial round of FCC testing of the Microsoft prototype in the summer returned negative results/