Build a quarter wave antenna and move it away from the computer.  I'd 
guess your antenna is right on the transmitter..
73
Butch
WA0VJR
Node 3148
Wallace, ks.


On Mon, 11 Mar 2013, Ron 
Canazzi wrote:

>    Hi list,
>
> Since this is one of the lists where I got information about an FM
> transmitter for feeding audio from my computer to FM receivers through out
> my house and property, I thought I would inquire here again.
>
> I have purchased the Sansonic FM transmitter that someone referenced on this
> list a few months ago.  It does a real nice job with meeting my requirements
> of clear and clean signals through out my property.  However, I have run
> into one problem.  I have the transmitter fairly close to the computer from
> which I am running the audio. It is about 4 feet away from the computer.  I
> am getting a pulsating hum through the computer speakers when the
> transmitter is operating.  The transmitter runs from 1 to 7 watts.  In light
> of the issue, I don't dare put the power any higher than 1 watt--and I
> really don't need to anyway.
>
> What can I do to solve this problem?  Any help would be greatly appreciated.
>
>