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<div class="moz-cite-prefix">On 11/7/2013 11:08 AM, Jerry Leichter
wrote:<br>
</div>
<blockquote cite="mid:ACF29151-E278-467A-AA43-694F9DDDDF06@lrw.com"
type="cite">
<pre wrap="">The smartphone and the embedded system are <b class="moz-txt-star"><span class="moz-txt-tag">*</span>very<span class="moz-txt-tag">*</span></b> different. Any phone has a microphone and a radio. Unfortunately, the radios are usually sealed off so you couldn't use them as a source of radio noise; but the microphones are wide open.</pre>
</blockquote>
I disagree about the 'sealed-off' thing.<br>
<br>
I have championed the use of the radio as an entropy source in
several wireless product developments. Most wireless modems have a
symbol error vector register that is trivial to read. I have never
found it to be a technical problem. The problem lays in having the
right engineers aware of the need.<br>
<br>
<br>
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