[sdiy] FM Transmitter IC

[Pete Hartman]

I don't recall the wattage or distance limitation, but yes, short range FM
is permissible in the US.  I have a friend who does one of those
synchronized christmas lights + music displays at his house every year, and
he uses an FM transmitter.


Pete

On Mon, Apr 25, 2016 at 8:48 AM, David Moylan <dave at westphila.net> wrote:

> I think under 1 Watt may be legal in the US.
>
>
> On 04/25/2016 08:49 AM, Richie Burnett wrote:
>
>> To the best of my knowledge unlicensed transmission in the FM broadcast
>> band is still prohibited, so I'd imagine the products you mention are
>> illegal imports from China.
>>
>> If you're wanting to make a wireless mike or something like a wireless
>> guitar audio link you really should be operating in one of the bands
>> designated for this purpose. The rules are different for Asia and the US
>> though.
>>
>> -Richie,
>>
>> Sent from my Xperia SP on O2
>>
>> ---- Robert Spencer wrote ----
>>
>> Hi guys,
>>
>> I’m after an FM transmitter IC, similar to the ones you get in the
>> little iPod FM transmitters in cars. I’ve bought a few of these
>> products, but they all seem to have the markings on the chips removed.
>>
>> I’ve been searching for a couple of months, but the only ones I can find
>> have an I2C interface or similar for control, which would mean an
>> additional controller. I’m after one which would be able to drive a
>> small LED display with two buttons for tuning.
>>
>> Any help would be much appreciated.
>>
>> Kind regards
>>
>> Rob Spencer
>> GMSN!
>> 07590 267835
>> gmsn.co.uk
>>
>>
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>>
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