keile Posted October 1, 2004 Report Share Posted October 1, 2004 what is the radio frequency that is available for use with any electronic devices without the need for a license?after researching this is what i found:40 Mhz - garage door, alarm system40-50 Mhz - standard cordless phones49 Mhz - baby monitors27 & 49 Mhz - basic consumers itemsi'm building a project similar to a keys finder.. is it alright if i use 49 Mhz? where could i find any document regarding the use of radio frequencies?Thanks!! Quote Link to comment Share on other sites More sharing options...
audioguru Posted October 1, 2004 Report Share Posted October 1, 2004 Hi Keile,I had a quick look at Google "radio frequency allocation" with the quotes and found this neat chart for the USA that looks like a bookcase until you zoom really close to see its detail. Many frequencies are called FIXED which might include unlicensed for you.http://www.ntia.doc.gov/osmhome/allochrt.pdf Quote Link to comment Share on other sites More sharing options...
keile Posted October 6, 2004 Author Report Share Posted October 6, 2004 thanks a million audioguru!! just what i needed :) Quote Link to comment Share on other sites More sharing options...
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