[DogParkList] Line in and ispectrum

[David Ferrington, M0XDF]

Line isolation transformer?
I haven't tried it, just sounds like an earth problem


On 2/10/07 19:38, "Greg Hemmings" <greghemmings at hughes.net> sent:


> Hello All.

>      I am using ispectrum on my imac and it works great.  The problem is,

> when I run an audio cable from my SP 20 speaker to the line in jack on the

> mac, I get a humming noise on the speaker.  The hum quits if I unplug the

> line in connection.  I tried toroids with no success.  Has anyone else had

> this problem and how did you fix it?


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