I use a USB adapter for cigar lighter for my iPad, no noise.
Kevin
On Jun 14, 2013, at 4:35 PM, "craig" <craigb@onthenet.com.au> wrote:
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> Perhaps you could use a Pulse Width Modulator. They run about $20 - $50 off
> ebay, usefull for controlling voltage
> And current you MAY be about to set the frequency high enough or low enough
> frequency so you can't notice it on your comms
> Or maybe you can find one of the "Old School" universal power packs that
> just used resistors and diodes, so no switching
> Noise, obviously you would need to do some cable "adjustments" or make a
> short adaptor cable to make it fit the Ipad
> One thing I have seen , was a USB adaptor for a "cigarette lighter" socket
> and run it from USB power just a thought
>
> Regards
> craig
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