[sdiy] FM Transmitter IC

Magnus Danielson magnus at rubidium.dyndns.org
Mon Apr 25 15:43:31 CEST 2016


Richie,

50 uW FM transmitters have found it's use and is approved in many 
countries. The power-level is so low, that any interference is fairly 
well contained through normal space loss.

Cheers,
Magnus

On 04/25/2016 02:49 PM, 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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