From b18464bc8fabad4ca71ad9e03280cff9f5d1f246 Mon Sep 17 00:00:00 2001
From: Yuval Adam <_@yuv.al>
Date: Sun, 13 May 2018 14:16:55 +0200
Subject: Update

---
 talk.ipynb       |  2 +-
 talk.slides.html | 45 ++++++++++++++++++++++++++++++++++++++++++---
 2 files changed, 43 insertions(+), 4 deletions(-)

diff --git a/talk.ipynb b/talk.ipynb
index a43d53f..0642d5d 100644
--- a/talk.ipynb
+++ b/talk.ipynb
@@ -70,7 +70,7 @@
    "source": [
     "## Radio Waves\n",
     "\n",
-    "![static/dipole.gif](static/dipole3.gif)\n"
+    "![static/dipole.gif](static/dipole.gif)\n"
    ]
   },
   {
diff --git a/talk.slides.html b/talk.slides.html
index 216dade..d88e18d 100644
--- a/talk.slides.html
+++ b/talk.slides.html
@@ -11931,6 +11931,7 @@ a.anchor-link {
 <li>I never learned physics, RF engineering or signal processing</li>
 <li>But radios are pretty cool!</li>
 <li>Hopefully in 25 minutes I can show you some neat things</li>
+<li>Slides and code @ <a href="https://github.com/yuvadm/radio-pyconil-2018">https://github.com/yuvadm/radio-pyconil-2018</a></li>
 </ul>
 
 </div>
@@ -11974,6 +11975,7 @@ a.anchor-link {
 <li>Digital TV broadcast ("Idan+", DVB-T)</li>
 <li>Airplane tracking (ADS-B)</li>
 <li>Weather satellites</li>
+<li>IoT project integration</li>
 <li>FM radio broadcast</li>
 </ul>
 
@@ -11986,6 +11988,15 @@ a.anchor-link {
 <div class="text_cell_render border-box-sizing rendered_html">
 <h1 id="I/Q-Sampling">I/Q Sampling<a class="anchor-link" href="#I/Q-Sampling">&#182;</a></h1><p><img src="static/cosample.png" alt="static/cosample.png"></p>
 
+</div>
+</div>
+</div></section><section>
+<div class="cell border-box-sizing text_cell rendered"><div class="prompt input_prompt">
+</div>
+<div class="inner_cell">
+<div class="text_cell_render border-box-sizing rendered_html">
+<h2 id="I/Q-Sampling">I/Q Sampling<a class="anchor-link" href="#I/Q-Sampling">&#182;</a></h2><p><img src="static/corkscrew.png" alt="static/corkscrew.png"></p>
+
 </div>
 </div>
 </div></section></section><section><section>
@@ -12088,7 +12099,7 @@ a.anchor-link {
 <span class="n">sdr</span><span class="o">.</span><span class="n">center_freq</span> <span class="o">=</span> <span class="mf">91.8e6</span>      <span class="c1"># 91,800,00 Hz frequency for the radio station</span>
 <span class="n">sdr</span><span class="o">.</span><span class="n">gain</span> <span class="o">=</span> <span class="s1">&#39;auto&#39;</span>             <span class="c1"># tune the gain (AKA &quot;volume&quot;) automatically</span>
 
-<span class="n">samples</span> <span class="o">=</span> <span class="n">sdr</span><span class="o">.</span><span class="n">read_samples</span><span class="p">(</span><span class="mi">8192000</span><span class="p">)</span>  <span class="c1"># collect samples during 5 seconds</span>
+<span class="n">samples</span> <span class="o">=</span> <span class="n">sdr</span><span class="o">.</span><span class="n">read_samples</span><span class="p">(</span><span class="mf">1.2e6</span> <span class="o">*</span> <span class="mi">8</span><span class="p">)</span>  <span class="c1"># collect samples during 8 seconds</span>
 <span class="n">sdr</span><span class="o">.</span><span class="n">close</span><span class="p">()</span>
 
 <span class="nb">print</span><span class="p">(</span><span class="n">samples</span><span class="p">[:</span><span class="mi">5</span><span class="p">])</span>
@@ -12213,13 +12224,41 @@ a.anchor-link {
 <li>Python, NumPy and SciPy are <strong>very</strong> good at doing fast processing of static data</li>
 <li>When handling real-time data, buffering becomes a serious issue</li>
 <li>GNU Radio<ul>
-<li>top-notch framework</li>
-<li>implemented many signal processing primivites</li>
+<li>top-notch signal processing framework</li>
+<li>implemented many DSP primivites</li>
 <li>has a great scheduling engine</li>
+<li><em>actually</em> generates flowgraphs in Python</li>
+</ul>
+</li>
+</ul>
+
+</div>
+</div>
+</div></section></section><section><section>
+<div class="cell border-box-sizing text_cell rendered"><div class="prompt input_prompt">
+</div>
+<div class="inner_cell">
+<div class="text_cell_render border-box-sizing rendered_html">
+<h2 id="Where-to-go-from-here">Where to go from here<a class="anchor-link" href="#Where-to-go-from-here">&#182;</a></h2><ul>
+<li>Buy an RTL-SDR dongle, they start at less than $10<ul>
+<li>eBay, AliExpress</li>
+</ul>
+</li>
+<li>Learn more about SDR, signal processing<ul>
+<li>Michael Ossmann's video course - <a href="https://greatscottgadgets.com/sdr/">https://greatscottgadgets.com/sdr/</a></li>
 </ul>
 </li>
+<li>Explore the radio waves!</li>
 </ul>
 
+</div>
+</div>
+</div></section></section><section><section>
+<div class="cell border-box-sizing text_cell rendered"><div class="prompt input_prompt">
+</div>
+<div class="inner_cell">
+<div class="text_cell_render border-box-sizing rendered_html">
+<h2 id="Thank-you!-Questions?">Thank you! Questions?<a class="anchor-link" href="#Thank-you!-Questions?">&#182;</a></h2>
 </div>
 </div>
 </div>
-- 
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