Added measurement table
[wikirepo] / notes / baofeng_uv5r_harmonic_measurements / index.mdwn
index 6a5e66a..069c355 100644 (file)
@@ -34,10 +34,10 @@ loss, which I ddidn't measure:
       <th>frequency_Hz</th>
       <th>power</th>
       <th>p1_dBm</th>
-      <th>d2_dBm</th>
-      <th>d3_dBm</th>
-      <th>d4_dBm</th>
-      <th>d5_dBm</th>
+      <th>d2_dBc</th>
+      <th>d3_dBc</th>
+      <th>d4_dBc</th>
+      <th>d5_dBc</th>
     </tr>
   </thead>
   <tbody>
@@ -84,6 +84,67 @@ loss, which I ddidn't measure:
   </tbody>
 </table>
 
+None of the harmonics are above the FCC limit (-40dBc) which is a good start (ofcom's regulations on off-frequency emissions are not so helpfully precise).
+
+Looking at the absolute powers of the harmonics, the worst is at -10dBm, and there are a couple of others greater than the FCC limit of -16dBm.
+
+<table border="1" class="dataframe">
+  <thead>
+    <tr style="text-align: right;">
+      <th></th>
+      <th>frequency_Hz</th>
+      <th>power</th>
+      <th>p1_dBm</th>
+      <th>p2_dBm</th>
+      <th>p3_dBm</th>
+      <th>p4_dBm</th>
+      <th>p5_dBm</th>
+    </tr>
+  </thead>
+  <tbody>
+    <tr>
+      <th>0</th>
+      <td>145000000.0</td>
+      <td>high</td>
+      <td>36.22</td>
+      <td>-15.97</td>
+      <td>-12.39</td>
+      <td>-35.55</td>
+      <td>-31.10</td>
+    </tr>
+    <tr>
+      <th>1</th>
+      <td>145000000.0</td>
+      <td>low</td>
+      <td>29.40</td>
+      <td>-28.68</td>
+      <td>-15.17</td>
+      <td>-35.62</td>
+      <td>-35.76</td>
+    </tr>
+    <tr>
+      <th>2</th>
+      <td>435000000.0</td>
+      <td>high</td>
+      <td>34.18</td>
+      <td>-26.48</td>
+      <td>-10.58</td>
+      <td>-28.53</td>
+      <td>-34.31</td>
+    </tr>
+    <tr>
+      <th>3</th>
+      <td>435000000.0</td>
+      <td>low</td>
+      <td>28.82</td>
+      <td>-18.72</td>
+      <td>-13.61</td>
+      <td>-30.21</td>
+      <td>-37.84</td>
+    </tr>
+  </tbody>
+</table>
+
 * [raw measurements][] of the fundamental, 2nd, 3rd, 4th, and 5th harmonics.
 * [analysis script][]