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Reconn's World Forum
Re: 3 Watt FM Transmitter
Posted by:
johnny c. ()
Date: July 24, 2003 04:45PM
Re: 3 Watt FM Transmitter
Posted by:
andrew ()
Date: July 30, 2003 08:34PM ah yes.. for that matter, what are all of those components. no ratings.. i'll delete this if i can't find any specs to go with the schematic. -andrew Re: 3 Watt FM Transmitter
Posted by:
HiP ()
Date: August 01, 2003 03:07PM Here's a link to site with the details for this schematic. With a mention of modding this circuit to 20w output.... [www.aaroncake.net] Re: 3 Watt FM Transmitter
Posted by:
fcc ()
Date: August 30, 2003 02:06AM according to fcc part 15 rules this device is not leagal for use in the US Re: 3 Watt FM Transmitter
Posted by:
fcc ()
Date: August 30, 2003 02:07AM according to fcc part 15 rules this device is not leagal for use in the US IF 1:it transmitts in the FM Broadcast Band 2: it exceeds the FCC part 15 low power rf output limits Re: 3 Watt FM Transmitter
Posted by:
jrpstrawboss ()
Date: October 31, 2003 03:23AM What are the low power rf output limits? Is there a certian wattage limit that you can build without a licence? Re: 3 Watt FM Transmitter
Posted by:
Laszlo ()
Date: December 09, 2003 09:00PM In part 15 the FCC measures transmission strength in microvolts per meter rather than antenna consumption wattage. Inefficiencies in components, transmissinon lines, antennas, etc. make antenna wattage numbers unreliable, nevermind the practical measurement difficulty. For unlicensed use of the 88-108MHz band (read everyone not running a capital-R Radio station). the limit is 150 microvolts per meter as measured at 3 meters from the transmitting antenna. (What the heck does THAT mean?) There is a formula for converting between the microvolts per meter measurement and transmitter 'wattage' under ideal conditions, although I don't have it in front of me. Suffice it to say, unless I'm gravely mistaken, for the 88-108MHz band the power limit is approximately 4mw. Sometimes I get the feeling the airwaves only belong to the people if those people are big, rich media companies. [frwebgate.access.gpo.gov] Re: 3 Watt FM Transmitter
Posted by:
Mike ()
Date: January 21, 2004 09:56AM
Re: 3 Watt FM Transmitter
Posted by:
Mike ()
Date: January 21, 2004 11:15AM
Click on the link below for complete schematic, parts List & notes for: [www.aaroncake.net]  Re: 3 Watt FM Transmitter
Posted by:
sam ()
Date: February 11, 2005 11:04PM i will make it legal Re: 3 Watt FM Transmitter
Posted by:
dodong ()
Date: May 05, 2005 03:40PM barely legal!!!   |
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