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mixer</category><category>minima bidirectional amp</category><category>ocxo</category><category>off-centre fed dipole</category><category>power meter</category><category>qo-100</category><category>remote control FTDX5000</category><category>remote rig control</category><category>replace sky router tp-link</category><category>rf amplifier</category><category>rs232 level converter</category><category>sat32pc</category><category>si570 Arduino interface</category><category>sound card interface</category><category>ssb exciter</category><category>step attenuator</category><category>the magic band.</category><category>transmission lines and terminations</category><category>ts-590</category><category>type 31 ferrite</category><category>usb to serial</category><category>variable attenuator</category><category>ve3zaz</category><category>w6pql</category><category>white stick antenna</category><category>windom</category><category>wires-x</category><category>wires-x lock-up</category><category>writelog</category><category>yaesu G-5500</category><title>G0MGX In the Shack</title><description>Musings from the Radio Shack of G0MGX in Central England.</description><link>http://g0mgx.blogspot.com/</link><managingEditor>noreply@blogger.com (G0MGX)</managingEditor><generator>Blogger</generator><openSearch:totalResults>468</openSearch:totalResults><openSearch:startIndex>1</openSearch:startIndex><openSearch:itemsPerPage>25</openSearch:itemsPerPage><item><guid isPermaLink="false">tag:blogger.com,1999:blog-3322535002789091724.post-233500812538141173</guid><pubDate>Sat, 02 Jan 2021 16:54:00 +0000</pubDate><atom:updated>2021-01-02T16:54:58.072+00:00</atom:updated><category domain="http://www.blogger.com/atom/ns#">TS890</category><title>TS-890 Audio Playback</title><description>&lt;p&gt;&amp;nbsp;A very quick video showing how to play back on-air recordings:&lt;/p&gt;&lt;div class=&quot;separator&quot; style=&quot;clear: both; text-align: center;&quot;&gt;&lt;iframe allowfullscreen=&quot;&quot; class=&quot;BLOG_video_class&quot; height=&quot;266&quot; src=&quot;https://www.youtube.com/embed/FkFZdaG3Hwc&quot; width=&quot;320&quot; youtube-src-id=&quot;FkFZdaG3Hwc&quot;&gt;&lt;/iframe&gt;&lt;/div&gt;&lt;br /&gt;&lt;p&gt;Simple, don&#39;t you think?&lt;/p&gt;</description><link>http://g0mgx.blogspot.com/2021/01/ts-890-audio-playback.html</link><author>noreply@blogger.com (G0MGX)</author><media:thumbnail xmlns:media="http://search.yahoo.com/mrss/" url="https://img.youtube.com/vi/FkFZdaG3Hwc/default.jpg" height="72" width="72"/><thr:total>1</thr:total></item><item><guid isPermaLink="false">tag:blogger.com,1999:blog-3322535002789091724.post-637428660722143534</guid><pubDate>Sun, 18 Oct 2020 12:23:00 +0000</pubDate><atom:updated>2020-10-18T13:23:52.182+01:00</atom:updated><category domain="http://www.blogger.com/atom/ns#">antennas</category><category domain="http://www.blogger.com/atom/ns#">balun</category><category domain="http://www.blogger.com/atom/ns#">baluns</category><title>Balun Output Impedance</title><description>&lt;p&gt;&amp;nbsp;Well,&lt;/p&gt;&lt;p&gt;Lots of discussions about my baluns and the test setup, a common question seems to be how to measure the output impedance.&lt;/p&gt;&lt;p&gt;Here&#39;s my way:&lt;/p&gt;&lt;p&gt;&lt;br /&gt;&lt;/p&gt;&lt;div class=&quot;separator&quot; style=&quot;clear: both; text-align: center;&quot;&gt;&lt;iframe allowfullscreen=&quot;&quot; class=&quot;BLOG_video_class&quot; height=&quot;266&quot; src=&quot;https://www.youtube.com/embed/VwTXvRjTrjg&quot; width=&quot;320&quot; youtube-src-id=&quot;VwTXvRjTrjg&quot;&gt;&lt;/iframe&gt;&lt;/div&gt;&lt;br /&gt;&lt;p&gt;Fun, dont you think?&lt;/p&gt;</description><link>http://g0mgx.blogspot.com/2020/10/balun-output-impedance.html</link><author>noreply@blogger.com (G0MGX)</author><media:thumbnail xmlns:media="http://search.yahoo.com/mrss/" url="https://img.youtube.com/vi/VwTXvRjTrjg/default.jpg" height="72" width="72"/><thr:total>0</thr:total></item><item><guid isPermaLink="false">tag:blogger.com,1999:blog-3322535002789091724.post-1954151039648819816</guid><pubDate>Wed, 14 Oct 2020 04:30:00 +0000</pubDate><atom:updated>2020-10-14T05:30:08.823+01:00</atom:updated><title>Progress is slow and steady</title><description>&lt;p&gt;&amp;nbsp;My little YouTube channel continues to progress slowly:&lt;/p&gt;&lt;p&gt;&lt;br /&gt;&lt;/p&gt;&lt;div class=&quot;separator&quot; style=&quot;clear: both; text-align: center;&quot;&gt;&lt;a href=&quot;https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjcEFP1lLegbrsWj2bRx1EqzqnwdFp4GhDmR9ZwNZ6V-378jHqGpi9iaBEdNh4JuhBSM7HQ0o-WKbbp1n1w_PjJn0rQcmX5wT9x6ZEvG4VVImG6o9f02Zs9puShUHVLrnvO3ST7b3xFUdsC/s1300/200K.png&quot; imageanchor=&quot;1&quot; style=&quot;margin-left: 1em; margin-right: 1em;&quot;&gt;&lt;img border=&quot;0&quot; data-original-height=&quot;1300&quot; data-original-width=&quot;1300&quot; height=&quot;320&quot; src=&quot;https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjcEFP1lLegbrsWj2bRx1EqzqnwdFp4GhDmR9ZwNZ6V-378jHqGpi9iaBEdNh4JuhBSM7HQ0o-WKbbp1n1w_PjJn0rQcmX5wT9x6ZEvG4VVImG6o9f02Zs9puShUHVLrnvO3ST7b3xFUdsC/s320/200K.png&quot; /&gt;&lt;/a&gt;&lt;/div&gt;&lt;br /&gt;&lt;p&gt;Good fun!&lt;/p&gt;</description><link>http://g0mgx.blogspot.com/2020/10/progress-is-slow-and-steady.html</link><author>noreply@blogger.com (G0MGX)</author><media:thumbnail xmlns:media="http://search.yahoo.com/mrss/" url="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjcEFP1lLegbrsWj2bRx1EqzqnwdFp4GhDmR9ZwNZ6V-378jHqGpi9iaBEdNh4JuhBSM7HQ0o-WKbbp1n1w_PjJn0rQcmX5wT9x6ZEvG4VVImG6o9f02Zs9puShUHVLrnvO3ST7b3xFUdsC/s72-c/200K.png" height="72" width="72"/><thr:total>0</thr:total></item><item><guid isPermaLink="false">tag:blogger.com,1999:blog-3322535002789091724.post-8806145590469889699</guid><pubDate>Wed, 14 Oct 2020 04:25:00 +0000</pubDate><atom:updated>2020-10-14T05:25:36.188+01:00</atom:updated><category domain="http://www.blogger.com/atom/ns#">AD8307</category><category domain="http://www.blogger.com/atom/ns#">STM32</category><title>Its Funny What you can Find</title><description>&lt;p&gt;&amp;nbsp;Well,&lt;/p&gt;&lt;p&gt;Can anyone offer a translation?&lt;/p&gt;&lt;div class=&quot;separator&quot; style=&quot;clear: both; text-align: center;&quot;&gt;&lt;iframe allowfullscreen=&quot;&quot; class=&quot;BLOG_video_class&quot; height=&quot;266&quot; src=&quot;https://www.youtube.com/embed/cy5CYIqH43c&quot; width=&quot;320&quot; youtube-src-id=&quot;cy5CYIqH43c&quot;&gt;&lt;/iframe&gt;&lt;/div&gt;&lt;p&gt;Thanks for the credit in the description :-)&lt;/p&gt;</description><link>http://g0mgx.blogspot.com/2020/10/its-funny-what-you-can-find.html</link><author>noreply@blogger.com (G0MGX)</author><media:thumbnail xmlns:media="http://search.yahoo.com/mrss/" url="https://img.youtube.com/vi/cy5CYIqH43c/default.jpg" height="72" width="72"/><thr:total>0</thr:total></item><item><guid isPermaLink="false">tag:blogger.com,1999:blog-3322535002789091724.post-3131483496697251590</guid><pubDate>Sun, 20 Sep 2020 11:51:00 +0000</pubDate><atom:updated>2020-09-20T12:51:07.430+01:00</atom:updated><title>More Balun Musings!</title><description>&lt;p&gt;&amp;nbsp;&lt;/p&gt;&lt;div class=&quot;separator&quot; style=&quot;clear: both; text-align: center;&quot;&gt;&lt;iframe allowfullscreen=&quot;&quot; class=&quot;BLOG_video_class&quot; height=&quot;266&quot; src=&quot;https://www.youtube.com/embed/4G-XqqqG_to&quot; width=&quot;320&quot; youtube-src-id=&quot;4G-XqqqG_to&quot;&gt;&lt;/iframe&gt;&lt;/div&gt;&lt;br /&gt;&lt;p&gt;&lt;/p&gt;&lt;p&gt;Fun, isnt it?&lt;/p&gt;</description><link>http://g0mgx.blogspot.com/2020/09/more-balun-musings.html</link><author>noreply@blogger.com (G0MGX)</author><media:thumbnail xmlns:media="http://search.yahoo.com/mrss/" url="https://img.youtube.com/vi/4G-XqqqG_to/default.jpg" height="72" width="72"/><thr:total>0</thr:total></item><item><guid isPermaLink="false">tag:blogger.com,1999:blog-3322535002789091724.post-7764575471725110032</guid><pubDate>Wed, 09 Sep 2020 06:19:00 +0000</pubDate><atom:updated>2020-09-09T07:19:57.867+01:00</atom:updated><category domain="http://www.blogger.com/atom/ns#">baluns</category><title>Baluns, Baluns, Baluns!</title><description>&lt;p&gt;&amp;nbsp;How about this for a bit of bonkersness?&lt;/p&gt;&lt;p&gt;&lt;br /&gt;&lt;/p&gt;&lt;div class=&quot;separator&quot; style=&quot;clear: both; text-align: center;&quot;&gt;&lt;iframe allowfullscreen=&quot;&quot; class=&quot;BLOG_video_class&quot; height=&quot;266&quot; src=&quot;https://www.youtube.com/embed/FcEKWSdEHLs&quot; width=&quot;320&quot; youtube-src-id=&quot;FcEKWSdEHLs&quot;&gt;&lt;/iframe&gt;&lt;/div&gt;&lt;br /&gt;&lt;p&gt;Fun, dont you think?&lt;/p&gt;</description><link>http://g0mgx.blogspot.com/2020/09/baluns-baluns-baluns.html</link><author>noreply@blogger.com (G0MGX)</author><media:thumbnail xmlns:media="http://search.yahoo.com/mrss/" url="https://img.youtube.com/vi/FcEKWSdEHLs/default.jpg" height="72" width="72"/><thr:total>0</thr:total></item><item><guid isPermaLink="false">tag:blogger.com,1999:blog-3322535002789091724.post-5782748053860112236</guid><pubDate>Thu, 06 Aug 2020 05:49:00 +0000</pubDate><atom:updated>2020-08-06T06:49:45.506+01:00</atom:updated><category domain="http://www.blogger.com/atom/ns#">IC-705</category><category domain="http://www.blogger.com/atom/ns#">IC705</category><category domain="http://www.blogger.com/atom/ns#">Icom</category><category domain="http://www.blogger.com/atom/ns#">Icom 705</category><title>The new Icom IC-705</title><description>With much thanks to the boys at &lt;a href=&quot;https://www.hamradio-shop.co.uk/&quot;&gt;LAM Communications&lt;/a&gt; in Barnsley I got my paws on a pre-production release of the new Icom IC-705. Here&#39;s my brief introduction to the RX capabilities of this tiny new rig:&lt;div&gt;&lt;br /&gt;&lt;/div&gt;&lt;div class=&quot;separator&quot; style=&quot;clear: both; text-align: center;&quot;&gt;&lt;iframe allowfullscreen=&quot;&quot; class=&quot;BLOG_video_class&quot; height=&quot;266&quot; src=&quot;https://www.youtube.com/embed/anxWpTEdIA4&quot; width=&quot;320&quot; youtube-src-id=&quot;anxWpTEdIA4&quot;&gt;&lt;/iframe&gt;&lt;/div&gt;&lt;div&gt;&lt;br /&gt;&lt;/div&gt;&lt;div&gt;It&#39;s amazing!&lt;/div&gt;</description><link>http://g0mgx.blogspot.com/2020/08/the-new-icom-ic-705.html</link><author>noreply@blogger.com (G0MGX)</author><media:thumbnail xmlns:media="http://search.yahoo.com/mrss/" url="https://img.youtube.com/vi/anxWpTEdIA4/default.jpg" height="72" width="72"/><thr:total>0</thr:total></item><item><guid isPermaLink="false">tag:blogger.com,1999:blog-3322535002789091724.post-5180314819199300758</guid><pubDate>Mon, 13 Jul 2020 05:51:00 +0000</pubDate><atom:updated>2020-07-13T06:51:54.797+01:00</atom:updated><category domain="http://www.blogger.com/atom/ns#">TEAS</category><category domain="http://www.blogger.com/atom/ns#">Test Equipment Acquisition Syndrome</category><title>The onset of YALBOA!</title><description>&lt;div dir=&quot;ltr&quot; style=&quot;text-align: left;&quot; trbidi=&quot;on&quot;&gt;
2. Oh no!<br />
3. <br />
4. I have more oscilloscopes.<br />
5. <br />
6. <div class="separator" style="clear: both; text-align: center;">
7. <iframe width="320" height="266" class="YOUTUBE-iframe-video" data-thumbnail-src="https://i.ytimg.com/vi/Myse26O0aC0/0.jpg" src="https://www.youtube.com/embed/Myse26O0aC0?feature=player_embedded" frameborder="0" allowfullscreen></iframe></div>
8. <br /></div>
9. </description><link>http://g0mgx.blogspot.com/2020/07/the-onset-of-yalboa.html</link><author>noreply@blogger.com (G0MGX)</author><media:thumbnail xmlns:media="http://search.yahoo.com/mrss/" url="https://img.youtube.com/vi/Myse26O0aC0/default.jpg" height="72" width="72"/><thr:total>0</thr:total></item><item><guid isPermaLink="false">tag:blogger.com,1999:blog-3322535002789091724.post-6273408941544850421</guid><pubDate>Tue, 30 Jun 2020 07:38:00 +0000</pubDate><atom:updated>2020-06-30T08:38:55.486+01:00</atom:updated><title>Why can&#39;t Icom do this?</title><description>&lt;div dir=&quot;ltr&quot; style=&quot;text-align: left;&quot; trbidi=&quot;on&quot;&gt;
10. Well,<br />
11. <br />
12. I've been critical of my IC-7610 and the lack of audio spectrum display centred around the CW pitch frequency - the Kenwood 890 has it.<br />
13. <br />
14. I recently came accross a design in Practical Electronics for a simple audio spectrum analyser and decided to build one as an experiment. The DSP chip cost less than 3 GBP.<br />
15. <br />
16. I wonder why Icom can't do this?<br />
17. <br />
18. <div class="separator" style="clear: both; text-align: center;">
19. <iframe width="320" height="266" class="YOUTUBE-iframe-video" data-thumbnail-src="https://i.ytimg.com/vi/I5EpbUdqZoI/0.jpg" src="https://www.youtube.com/embed/I5EpbUdqZoI?feature=player_embedded" frameborder="0" allowfullscreen></iframe></div>
20. <br /></div>
21. </description><link>http://g0mgx.blogspot.com/2020/06/why-cant-icom-do-this.html</link><author>noreply@blogger.com (G0MGX)</author><media:thumbnail xmlns:media="http://search.yahoo.com/mrss/" url="https://img.youtube.com/vi/I5EpbUdqZoI/default.jpg" height="72" width="72"/><thr:total>0</thr:total></item><item><guid isPermaLink="false">tag:blogger.com,1999:blog-3322535002789091724.post-8230810215066228227</guid><pubDate>Mon, 29 Jun 2020 15:41:00 +0000</pubDate><atom:updated>2020-06-29T16:41:20.659+01:00</atom:updated><title>The CAT Macro</title><description>&lt;div dir=&quot;ltr&quot; style=&quot;text-align: left;&quot; trbidi=&quot;on&quot;&gt;
22. Well,<br />
23. <br />
24. I've had a few folk contact me directly recently asking about rig control using macros and CAT commands.<br />
25. <br />
26. I did a quick video to demonstrate the concept with Logger32 and then Ham Radio Deluxe:<br />
27. <br />
28. <div class="separator" style="clear: both; text-align: center;">
29. <iframe width="320" height="266" class="YOUTUBE-iframe-video" data-thumbnail-src="https://i.ytimg.com/vi/0L8fkndp_bU/0.jpg" src="https://www.youtube.com/embed/0L8fkndp_bU?feature=player_embedded" frameborder="0" allowfullscreen></iframe></div>
30. <br />
31. I hope this is useful to someone!<br />
32. <br />
33. If you like what I am doing on YouTube, please subscribe to the channel, I would very much appreciate your support.<br />
34. <br />
35. CAT control at its best:<br />
36. <br />
37. <div class="separator" style="clear: both; text-align: center;">
38. <a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjc0iOzsPjkJcgRFlPvEBQ_xqOZs90isYsyqj_3gyq6VuNouPZqZ_ZI36cTKAO3KXqRj_bJ7wv8ieG-Ffx5LFc4ZPW-wSNOBpF3nO8bcSXC6LGbqSlPnblI3bkLwYSwn7H04NiWNzuV_nqW/s1600/IMG_2547+%2528002%2529.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1200" data-original-width="1600" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjc0iOzsPjkJcgRFlPvEBQ_xqOZs90isYsyqj_3gyq6VuNouPZqZ_ZI36cTKAO3KXqRj_bJ7wv8ieG-Ffx5LFc4ZPW-wSNOBpF3nO8bcSXC6LGbqSlPnblI3bkLwYSwn7H04NiWNzuV_nqW/s320/IMG_2547+%2528002%2529.JPG" width="320" /></a></div>
39. <br /></div>
40. </description><link>http://g0mgx.blogspot.com/2020/06/the-cat-macro.html</link><author>noreply@blogger.com (G0MGX)</author><media:thumbnail xmlns:media="http://search.yahoo.com/mrss/" url="https://img.youtube.com/vi/0L8fkndp_bU/default.jpg" height="72" width="72"/><thr:total>0</thr:total></item><item><guid isPermaLink="false">tag:blogger.com,1999:blog-3322535002789091724.post-2689829498464408541</guid><pubDate>Sat, 27 Jun 2020 18:13:00 +0000</pubDate><atom:updated>2020-06-27T19:15:53.090+01:00</atom:updated><title>The old and the new</title><description>&lt;div dir=&quot;ltr&quot; style=&quot;text-align: left;&quot; trbidi=&quot;on&quot;&gt;
41. Well,<br />
42. <br />
43. Whilst rummaging in the attic looking for something, I stumbled accross this old Direct Conversion receiver I built when I was a young <a href="https://www.urbandictionary.com/define.php?term=whippersnapper" target="_blank">whipper snapper</a>. This is a design by Drew Diamond, VK3XU and is published a the <a href="http://www.gqrp.com/" target="_blank">G-QRP club</a> book called "Radio projects Vol 1".<br />
44. <br />
45. I did a video for my YouTube channel having a look back at my construction capabilities from all those years ago:<br />
46. <br />
47. <div class="separator" style="clear: both; text-align: center;">
48. <iframe allowfullscreen="" class="YOUTUBE-iframe-video" data-thumbnail-src="https://i.ytimg.com/vi/eIE--pLEMfg/0.jpg" frameborder="0" height="266" src="https://www.youtube.com/embed/eIE--pLEMfg?feature=player_embedded" width="320"></iframe></div>
49. <br />
50. I hope you enjoy!<br />
51. <br /></div>
52. </description><link>http://g0mgx.blogspot.com/2020/06/well-whilst-rummaging-in-attic-looking.html</link><author>noreply@blogger.com (G0MGX)</author><media:thumbnail xmlns:media="http://search.yahoo.com/mrss/" url="https://img.youtube.com/vi/eIE--pLEMfg/default.jpg" height="72" width="72"/><thr:total>0</thr:total></item><item><guid isPermaLink="false">tag:blogger.com,1999:blog-3322535002789091724.post-3852500884360572160</guid><pubDate>Mon, 22 Jun 2020 04:47:00 +0000</pubDate><atom:updated>2020-06-22T05:47:14.496+01:00</atom:updated><title>Funny old World</title><description>&lt;div dir=&quot;ltr&quot; style=&quot;text-align: left;&quot; trbidi=&quot;on&quot;&gt;
53. Well,<br />
54. <br />
55. I've been having an e-mail exchange with a Radio Amateur in New Zealand - he has been trying to get one of my YouTube projects based on the STM32 blue pill boards to work.<br />
56. <br />
57. Following a few emails back and forth, he sent me this:<br />
58. <br />
59. <div class="separator" style="clear: both; text-align: center;">
60. <a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj24T7_w7nTcMbWbE5cXEpUpzZi1Pj2F2LWpwjIXZbw1eyub9HSZdGmlCr1M1EqHVyDnbxIjxovN7LJ0tCj1YFcUIdiGZpQqUGnOBfZiCaCa8EB04Sk2CuUO8o50oYmcg7INvNlnKD5H0XG/s1600/IMG_20200622_110629.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1600" data-original-width="899" height="320" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj24T7_w7nTcMbWbE5cXEpUpzZi1Pj2F2LWpwjIXZbw1eyub9HSZdGmlCr1M1EqHVyDnbxIjxovN7LJ0tCj1YFcUIdiGZpQqUGnOBfZiCaCa8EB04Sk2CuUO8o50oYmcg7INvNlnKD5H0XG/s320/IMG_20200622_110629.jpg" width="179" /></a></div>
61. <br />
62. which is nice :-)<br />
63. <br />
64. My latest ramblings on YouTube are all about the classic Sudden HF receiver, you should check it out!<br />
65. <br />
66. <div class="separator" style="clear: both; text-align: center;">
67. <iframe width="320" height="266" class="YOUTUBE-iframe-video" data-thumbnail-src="https://i.ytimg.com/vi/hOxfS1gWG5c/0.jpg" src="https://www.youtube.com/embed/hOxfS1gWG5c?feature=player_embedded" frameborder="0" allowfullscreen></iframe></div>
68. <br />
69. Fun, don't you think?</div>
70. </description><link>http://g0mgx.blogspot.com/2020/06/funny-old-world.html</link><author>noreply@blogger.com (G0MGX)</author><media:thumbnail xmlns:media="http://search.yahoo.com/mrss/" url="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj24T7_w7nTcMbWbE5cXEpUpzZi1Pj2F2LWpwjIXZbw1eyub9HSZdGmlCr1M1EqHVyDnbxIjxovN7LJ0tCj1YFcUIdiGZpQqUGnOBfZiCaCa8EB04Sk2CuUO8o50oYmcg7INvNlnKD5H0XG/s72-c/IMG_20200622_110629.jpg" height="72" width="72"/><thr:total>0</thr:total></item><item><guid isPermaLink="false">tag:blogger.com,1999:blog-3322535002789091724.post-5199860006728901141</guid><pubDate>Sun, 31 May 2020 18:35:00 +0000</pubDate><atom:updated>2020-05-31T19:35:32.848+01:00</atom:updated><title>CQ WW WPX - CW Contest Time</title><description>&lt;div dir=&quot;ltr&quot; style=&quot;text-align: left;&quot; trbidi=&quot;on&quot;&gt;
71. Well,<br />
72. <br />
73. I've been having a play over the weekend in the CQ WW WPX CW Contest. Here's the log as a map:<br />
74. <br />
75. <div class="separator" style="clear: both; text-align: center;">
76. <a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiE-i4-AG6Krd-2xlMiL0UjWMgslOvxmOpcque1rtAr8umiMIw_Ez3P15HEJfxKctoGq1AS4ZeWHfy1Y1DoLpXA-2cABS-wOiI2zTMJrt2aloi6CrekfRwYuVr7mzb0WTlhr3RKIe2dMn49/s1600/Untitled.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="819" data-original-width="1275" height="205" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiE-i4-AG6Krd-2xlMiL0UjWMgslOvxmOpcque1rtAr8umiMIw_Ez3P15HEJfxKctoGq1AS4ZeWHfy1Y1DoLpXA-2cABS-wOiI2zTMJrt2aloi6CrekfRwYuVr7mzb0WTlhr3RKIe2dMn49/s320/Untitled.png" width="320" /></a></div>
77. <br />
78. There was interesting "blanketing E" propagation, but no real DX.<br />
79. <br />
80. I did a quick video on the TS-890 in these busy contest conditions with Writelog, CW Skimmer and CW Get:<br />
81. <br />
82. <div class="separator" style="clear: both; text-align: center;">
83. <iframe width="320" height="266" class="YOUTUBE-iframe-video" data-thumbnail-src="https://i.ytimg.com/vi/1sa9kOo0jQ4/0.jpg" src="https://www.youtube.com/embed/1sa9kOo0jQ4?feature=player_embedded" frameborder="0" allowfullscreen></iframe></div>
84. <br />
85. Fun, egh?</div>
86. </description><link>http://g0mgx.blogspot.com/2020/05/cq-ww-wpx-cw-contest-time.html</link><author>noreply@blogger.com (G0MGX)</author><media:thumbnail xmlns:media="http://search.yahoo.com/mrss/" url="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiE-i4-AG6Krd-2xlMiL0UjWMgslOvxmOpcque1rtAr8umiMIw_Ez3P15HEJfxKctoGq1AS4ZeWHfy1Y1DoLpXA-2cABS-wOiI2zTMJrt2aloi6CrekfRwYuVr7mzb0WTlhr3RKIe2dMn49/s72-c/Untitled.png" height="72" width="72"/><thr:total>0</thr:total></item><item><guid isPermaLink="false">tag:blogger.com,1999:blog-3322535002789091724.post-2782056462859487817</guid><pubDate>Fri, 15 May 2020 10:30:00 +0000</pubDate><atom:updated>2020-05-24T19:28:53.281+01:00</atom:updated><category domain="http://www.blogger.com/atom/ns#">IC-7610</category><category domain="http://www.blogger.com/atom/ns#">IC-7610 60M 5Mhz config</category><category domain="http://www.blogger.com/atom/ns#">IC-7610 HDSDR</category><title>IC7610 In Action!</title><description>&lt;div dir=&quot;ltr&quot; style=&quot;text-align: left;&quot; trbidi=&quot;on&quot;&gt;
87. <div class="separator" style="clear: both; text-align: center;">
88. <br /></div>
89. <div class="separator" style="clear: both; text-align: left;">
90. Well,</div>
91. <div class="separator" style="clear: both; text-align: left;">
92. <br /></div>
93. <div class="separator" style="clear: both; text-align: left;">
94. By popular request I have put together a demonstration of the IC-7610 in action:</div>
95. <div class="separator" style="clear: both; text-align: center;">
96. <br /></div>
97. <div class="separator" style="clear: both; text-align: center;">
98. <iframe allowfullscreen="" class="YOUTUBE-iframe-video" data-thumbnail-src="https://i.ytimg.com/vi/ZuyNBz6jdn8/0.jpg" frameborder="0" height="266" src="https://www.youtube.com/embed/ZuyNBz6jdn8?feature=player_embedded" width="320"></iframe></div>
99. <br />
100. I hope you like it!<br />
101. <br /></div>
102. </description><link>http://g0mgx.blogspot.com/2020/05/blog-post.html</link><author>noreply@blogger.com (G0MGX)</author><media:thumbnail xmlns:media="http://search.yahoo.com/mrss/" url="https://img.youtube.com/vi/ZuyNBz6jdn8/default.jpg" height="72" width="72"/><thr:total>0</thr:total></item><item><guid isPermaLink="false">tag:blogger.com,1999:blog-3322535002789091724.post-958047676010508625</guid><pubDate>Sun, 10 May 2020 09:04:00 +0000</pubDate><atom:updated>2020-05-10T10:04:53.777+01:00</atom:updated><category domain="http://www.blogger.com/atom/ns#">gps 1pps</category><category domain="http://www.blogger.com/atom/ns#">GPS disciplined frequency reference</category><category domain="http://www.blogger.com/atom/ns#">gps frequency reference</category><category domain="http://www.blogger.com/atom/ns#">STM32</category><title>An experimental STM32 Frequency Counter</title><description>&lt;div dir=&quot;ltr&quot; style=&quot;text-align: left;&quot; trbidi=&quot;on&quot;&gt;
103. Well,<br />
104. <br />
105. In an attempt to learn more about microcontroller programming I have done a little bit of training during this Covid-19 lockdown:<br />
106. <br />
107. <div class="separator" style="clear: both; text-align: center;">
108. <a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEji6lP4gDRgebfh3-YasXyPA2tPMbpTLD5V3zbSVCMBNLwd00o6KRKwQIpJ0V8BD2hi1vBsiP74Jnb8EnusRgrPEaAKmCsGwIe_uvtYTyUEldvK56wGUO49ULTrS7PVox6N6T1Si8wYWTgz/s1600/C+for+MCU.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1190" data-original-width="1600" height="238" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEji6lP4gDRgebfh3-YasXyPA2tPMbpTLD5V3zbSVCMBNLwd00o6KRKwQIpJ0V8BD2hi1vBsiP74Jnb8EnusRgrPEaAKmCsGwIe_uvtYTyUEldvK56wGUO49ULTrS7PVox6N6T1Si8wYWTgz/s320/C+for+MCU.jpg" width="320" /></a></div>
109. <br />
110. <div class="separator" style="clear: both; text-align: center;">
111. <a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhxwJTIvC74fgD2aNewi6Lu64GAY2mEQFKRFchGyPkakRb5sb0C9R0rAxymy6DUyPm7Zk7W8cHWEL_kqJtFq2RvT1qQlELXIoj02yvzZylD8Kfh7aABSf5laCDS4Oo9nDN_cT_cdp5wRjOe/s1600/Mastering+MCU.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1190" data-original-width="1600" height="238" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhxwJTIvC74fgD2aNewi6Lu64GAY2mEQFKRFchGyPkakRb5sb0C9R0rAxymy6DUyPm7Zk7W8cHWEL_kqJtFq2RvT1qQlELXIoj02yvzZylD8Kfh7aABSf5laCDS4Oo9nDN_cT_cdp5wRjOe/s320/Mastering+MCU.jpg" width="320" /></a></div>
112. <br />
113. My first real attempt to use these skills is below. I've used a GPS 1pps signal to accurately count an external frequency. This is a GPS disciplined freuqnecy counter:<br />
114. <br />
115. <div class="separator" style="clear: both; text-align: center;">
116. <iframe width="320" height="266" class="YOUTUBE-iframe-video" data-thumbnail-src="https://i.ytimg.com/vi/KmwEq1I_vi8/0.jpg" src="https://www.youtube.com/embed/KmwEq1I_vi8?feature=player_embedded" frameborder="0" allowfullscreen></iframe></div>
117. <br />
118. Good, isn't it?<br />
119. <br />
120. Here is a picture of me (with Covid-19 dog clipper hair cut) and my beloved Bonnie dog:<br />
121. <br />
122. <div class="separator" style="clear: both; text-align: center;">
123. <a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhv6jvy5-lnT6x-0Jx7XkIXpZU0YcGhdaRZhDFyyW1ibqvgcESn_YFuT-hlzzvuk73pQRau5amPy7b8vSnXN0wBrAUudLQ5oydWg9uXmVKA8baelt8U5xAPwGnTMAobPt9sbPoHqsjHIJvs/s1600/IMG_3771.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="348" data-original-width="480" height="232" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhv6jvy5-lnT6x-0Jx7XkIXpZU0YcGhdaRZhDFyyW1ibqvgcESn_YFuT-hlzzvuk73pQRau5amPy7b8vSnXN0wBrAUudLQ5oydWg9uXmVKA8baelt8U5xAPwGnTMAobPt9sbPoHqsjHIJvs/s320/IMG_3771.jpg" width="320" /></a></div>
124. <br /></div>
125. </description><link>http://g0mgx.blogspot.com/2020/05/an-experimental-stm32-frequency-counter.html</link><author>noreply@blogger.com (G0MGX)</author><media:thumbnail xmlns:media="http://search.yahoo.com/mrss/" url="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEji6lP4gDRgebfh3-YasXyPA2tPMbpTLD5V3zbSVCMBNLwd00o6KRKwQIpJ0V8BD2hi1vBsiP74Jnb8EnusRgrPEaAKmCsGwIe_uvtYTyUEldvK56wGUO49ULTrS7PVox6N6T1Si8wYWTgz/s72-c/C+for+MCU.jpg" height="72" width="72"/><thr:total>2</thr:total></item><item><guid isPermaLink="false">tag:blogger.com,1999:blog-3322535002789091724.post-2075644354377803143</guid><pubDate>Sat, 09 May 2020 12:11:00 +0000</pubDate><atom:updated>2020-05-09T13:11:45.602+01:00</atom:updated><title>A Modest Milestone</title><description>&lt;div dir=&quot;ltr&quot; style=&quot;text-align: left;&quot; trbidi=&quot;on&quot;&gt;
126. A nice little milestone today, if you'r not already subscribed to my <a href="http://www.youtube.com/c/MarkG0MGX" target="_blank">YouTube</a> channel I would very much appreciate your support:<br />
127. <br />
128. <a class="yt-simple-endpoint bold style-scope yt-formatted-string" dir="auto" href="http://www.youtube.com/c/MarkG0MGX" rel="nofollow" spellcheck="false" style="background-color: #f9f9f9; cursor: pointer; display: inline-block; font-family: Roboto, Arial, sans-serif; font-size: 14px; font-weight: var(--yt-formatted-string-bold-font-weight, 500); text-decoration: var(--yt-endpoint-text-decoration, none); white-space: pre-wrap;">http://www.youtube.com/c/MarkG0MGX</a><br />
129. <br />
130. <div class="separator" style="clear: both; text-align: center;">
131. <a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiAW9IsjGS04JXZR66ZLL3I_f8YSytE5gPSqE9xzuuKHmqRo6YSjph3z441MZ9MxhutTu1sCuM_eWbpJ_6SJsSdjGIVv-dv05yF2zqBUAtBFgurajaUCnZW1fq9MAUuOOvvAuxUww8Ohyix/s1600/150KViews.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1300" data-original-width="1300" height="320" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiAW9IsjGS04JXZR66ZLL3I_f8YSytE5gPSqE9xzuuKHmqRo6YSjph3z441MZ9MxhutTu1sCuM_eWbpJ_6SJsSdjGIVv-dv05yF2zqBUAtBFgurajaUCnZW1fq9MAUuOOvvAuxUww8Ohyix/s320/150KViews.png" width="320" /></a></div>
132. <br />
133. Local conditions.</div>
134. </description><link>http://g0mgx.blogspot.com/2020/05/a-modest-milestone.html</link><author>noreply@blogger.com (G0MGX)</author><media:thumbnail xmlns:media="http://search.yahoo.com/mrss/" url="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiAW9IsjGS04JXZR66ZLL3I_f8YSytE5gPSqE9xzuuKHmqRo6YSjph3z441MZ9MxhutTu1sCuM_eWbpJ_6SJsSdjGIVv-dv05yF2zqBUAtBFgurajaUCnZW1fq9MAUuOOvvAuxUww8Ohyix/s72-c/150KViews.png" height="72" width="72"/><thr:total>0</thr:total></item><item><guid isPermaLink="false">tag:blogger.com,1999:blog-3322535002789091724.post-1383043002530588773</guid><pubDate>Thu, 30 Apr 2020 10:22:00 +0000</pubDate><atom:updated>2020-04-30T11:22:51.453+01:00</atom:updated><category domain="http://www.blogger.com/atom/ns#">gps 1pps</category><category domain="http://www.blogger.com/atom/ns#">GPS disciplined frequency reference</category><category domain="http://www.blogger.com/atom/ns#">gps frequency reference</category><category domain="http://www.blogger.com/atom/ns#">GPS-synced Reference</category><title>GPS Disciplined, again?</title><description>&lt;div dir=&quot;ltr&quot; style=&quot;text-align: left;&quot; trbidi=&quot;on&quot;&gt;
135. Well,<br />
136. <br />
137. I've been trying to learn more about STM32 microcontrollers, their programming and to understand more about the on-board peripherals.<br />
138. <br />
139. This is the result of my musings:<br />
140. <br />
141. <div class="separator" style="clear: both; text-align: center;">
142. <iframe allowfullscreen="" class="YOUTUBE-iframe-video" data-thumbnail-src="https://i.ytimg.com/vi/5v1uUZblkoA/0.jpg" frameborder="0" height="266" src="https://www.youtube.com/embed/5v1uUZblkoA?feature=player_embedded" width="320"></iframe></div>
143. <br />
144. Fun, egh?</div>
145. </description><link>http://g0mgx.blogspot.com/2020/04/well-ive-been-trying-to-learn-more.html</link><author>noreply@blogger.com (G0MGX)</author><media:thumbnail xmlns:media="http://search.yahoo.com/mrss/" url="https://img.youtube.com/vi/5v1uUZblkoA/default.jpg" height="72" width="72"/><thr:total>0</thr:total></item><item><guid isPermaLink="false">tag:blogger.com,1999:blog-3322535002789091724.post-6997078382197218843</guid><pubDate>Sun, 19 Apr 2020 11:06:00 +0000</pubDate><atom:updated>2020-04-19T12:06:41.187+01:00</atom:updated><category domain="http://www.blogger.com/atom/ns#">Kenwood TS-890</category><category domain="http://www.blogger.com/atom/ns#">TS-890 digital</category><category domain="http://www.blogger.com/atom/ns#">TS890</category><title>TS-890 (Again) - Digital Config</title><description>&lt;div dir=&quot;ltr&quot; style=&quot;text-align: left;&quot; trbidi=&quot;on&quot;&gt;
146. Well,<br />
147. <br />
148. By popular request I have created my best shot at an "idiots guide" to setting up digital modes on the TS-890:<br />
149. <br />
150. <div class="separator" style="clear: both; text-align: center;">
151. <iframe width="320" height="266" class="YOUTUBE-iframe-video" data-thumbnail-src="https://i.ytimg.com/vi/bvTDiZ-5ohQ/0.jpg" src="https://www.youtube.com/embed/bvTDiZ-5ohQ?feature=player_embedded" frameborder="0" allowfullscreen></iframe></div>
152. <br />
153. I hope this is useful to someone....</div>
154. </description><link>http://g0mgx.blogspot.com/2020/04/ts-890-again-digital-config.html</link><author>noreply@blogger.com (G0MGX)</author><media:thumbnail xmlns:media="http://search.yahoo.com/mrss/" url="https://img.youtube.com/vi/bvTDiZ-5ohQ/default.jpg" height="72" width="72"/><thr:total>0</thr:total></item><item><guid isPermaLink="false">tag:blogger.com,1999:blog-3322535002789091724.post-7521101959274335608</guid><pubDate>Sat, 18 Apr 2020 16:06:00 +0000</pubDate><atom:updated>2020-04-19T19:08:10.130+01:00</atom:updated><category domain="http://www.blogger.com/atom/ns#">ad9850 arduino</category><category domain="http://www.blogger.com/atom/ns#">DDS</category><category domain="http://www.blogger.com/atom/ns#">STM32</category><category domain="http://www.blogger.com/atom/ns#">STM32F103RC8T6</category><category domain="http://www.blogger.com/atom/ns#">WSPR</category><title>A CW &amp; WSPR Beacon</title><description>&lt;div dir=&quot;ltr&quot; style=&quot;text-align: left;&quot; trbidi=&quot;on&quot;&gt;
155. Well,<br />
156. <br />
157. I've been fiddling some more with STM32 and have created a DDS based CW & WSPR beacon for 6M.<br />
158. <br />
159. You can find the details of the project here:<br />
160. <br />
161. <div class="separator" style="clear: both; text-align: center;">
162. <iframe allowfullscreen="" class="YOUTUBE-iframe-video" data-thumbnail-src="https://i.ytimg.com/vi/iOvTXpGt0Rg/0.jpg" frameborder="0" height="266" src="https://www.youtube.com/embed/iOvTXpGt0Rg?feature=player_embedded" width="320"></iframe></div>
163. <br />
164. The WSPR code is stolen from Anthony F4GOH, his code and other bits and bobs are on GitHub here:<br />
165. <br />
166. <a href="https://github.com/f4goh/wspr" target="_blank">https://github.com/f4goh/wspr</a><br />
167. <br />
168. To counter any drift in the DDS, I've modified my AD9850 board to use an external signal for the clock and configured my Leo Bodnar GPS referenced oscilator to give me 10MHz from output 1 and 125MHz from output 2, thus:<br />
169. <br />
170. <div class="separator" style="clear: both; text-align: center;">
171. <a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiGYATVj_oOnGXnaeM0HBbvAQ_OxvgkVs3i4LL7Ul3gCczTHkwwhnRJ36LEQklWlKCqzLK9Ah1mtCr1EK7KAuihRjkBcluwoFEhjynA5GNxkEO7OcK8JDOLqX-bdZ3-dk1bLorP-vm34d1H/s1600/10MHz+125MHz+Leo+Bodnar.PNG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="770" data-original-width="324" height="320" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiGYATVj_oOnGXnaeM0HBbvAQ_OxvgkVs3i4LL7Ul3gCczTHkwwhnRJ36LEQklWlKCqzLK9Ah1mtCr1EK7KAuihRjkBcluwoFEhjynA5GNxkEO7OcK8JDOLqX-bdZ3-dk1bLorP-vm34d1H/s320/10MHz+125MHz+Leo+Bodnar.PNG" width="134" /></a></div>
172. <br />
173. The 125MHz is now used to drive the DDS. I'd be delighted to receive reports from the beacon, the CW signal is on 50.030 and every multiple of 10 mins it sends a 2 min WSPR transmission on 50.293 + 30Hz.<br />
174. <br />
175. Here's the WSPR beacon RX from G0ORC:<br />
176. <br />
177. <div class="separator" style="clear: both; text-align: center;">
178. <a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiSsVQpNSi_dvSYP0aRgOyQwoeIFag3v8HV_ZwdvBRJYX_5w9shiAwdIrf4s8eRCZMfFNCDVTpYY-bS0M02IFAha-fMdzIhBjnumHmn-F8H7FkpGaPJLYTrKsbZuLafPBhwLfZrlKITuVBt/s1600/g0mgx+%2528002%2529.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="902" data-original-width="1600" height="180" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiSsVQpNSi_dvSYP0aRgOyQwoeIFag3v8HV_ZwdvBRJYX_5w9shiAwdIrf4s8eRCZMfFNCDVTpYY-bS0M02IFAha-fMdzIhBjnumHmn-F8H7FkpGaPJLYTrKsbZuLafPBhwLfZrlKITuVBt/s320/g0mgx+%2528002%2529.JPG" width="320" /></a></div>
179. <br />
180. No drift - not even a wobble! Excellent.<br />
181. <br />
182. Fun, dont you think?</div>
183. </description><link>http://g0mgx.blogspot.com/2020/04/a-cw-wspr-beacon.html</link><author>noreply@blogger.com (G0MGX)</author><media:thumbnail xmlns:media="http://search.yahoo.com/mrss/" url="https://img.youtube.com/vi/iOvTXpGt0Rg/default.jpg" height="72" width="72"/><thr:total>0</thr:total></item><item><guid isPermaLink="false">tag:blogger.com,1999:blog-3322535002789091724.post-6734226193546804819</guid><pubDate>Wed, 25 Mar 2020 17:44:00 +0000</pubDate><atom:updated>2020-04-19T12:07:03.431+01:00</atom:updated><category domain="http://www.blogger.com/atom/ns#">Ardunio Power Meter</category><category domain="http://www.blogger.com/atom/ns#">STM32</category><category domain="http://www.blogger.com/atom/ns#">STM32F103RC8T6</category><title>An Arduino based Power Meter</title><description>&lt;div dir=&quot;ltr&quot; style=&quot;text-align: left;&quot; trbidi=&quot;on&quot;&gt;
184. Well,<br />
185. <br />
186. I've been fiddling some more since the Linear we built a little while ago <a href="https://g0mgx.blogspot.com/2020/02/making-10w-qrp-ish-linear.html" target="_blank">here</a>.<br />
187. <br />
188. Some musings below on power meters, directional couplers and measuing RF power:<br />
189. <br />
190. <br />
191. <div class="separator" style="clear: both; text-align: center;">
192. <iframe allowfullscreen="" class="YOUTUBE-iframe-video" data-thumbnail-src="https://i.ytimg.com/vi/ZMc1TdX-AoQ/0.jpg" frameborder="0" height="266" src="https://www.youtube.com/embed/ZMc1TdX-AoQ?feature=player_embedded" width="320"></iframe></div>
193. <br />
194. I hope you are all keeping safe - its very scary out there.</div>
195. </description><link>http://g0mgx.blogspot.com/2020/03/well-ive-been-fiddling-some-more-since.html</link><author>noreply@blogger.com (G0MGX)</author><media:thumbnail xmlns:media="http://search.yahoo.com/mrss/" url="https://img.youtube.com/vi/ZMc1TdX-AoQ/default.jpg" height="72" width="72"/><thr:total>0</thr:total></item><item><guid isPermaLink="false">tag:blogger.com,1999:blog-3322535002789091724.post-1191398784950265748</guid><pubDate>Wed, 11 Mar 2020 17:30:00 +0000</pubDate><atom:updated>2020-03-25T17:45:39.376+00:00</atom:updated><category domain="http://www.blogger.com/atom/ns#">ILI9341</category><category domain="http://www.blogger.com/atom/ns#">STM32</category><category domain="http://www.blogger.com/atom/ns#">STM32F103RC8T6</category><title>TFTs and Blue Pills - Are you sure?</title><description>&lt;div dir=&quot;ltr&quot; style=&quot;text-align: left;&quot; trbidi=&quot;on&quot;&gt;
196. Well,<br />
197. <br />
198. I've been using the STM32 processor (STM32F103 for those playing along at home) based "Blue Pill" board. This board is compatible with the Arduino IDE and I have been using it with the ILI9341 super duper TFT display module.<br />
199. <br />
200. This is the board in question:<br />
201. <br />
202. <div class="separator" style="clear: both; text-align: center;">
203. <a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhrh6DupQAZhz0HUlZXyk3iQYuFj1l-qlWESCKPvRXlhDvZwrPoi7QR5M7VWDFBisjHC98mEM0leaAu0uMnddL5Z98-_H_xo0mINqr9ZwOFjUr-8TWpwOZPFxxyL3iuVY-Nlbl8Ij8fMiyl/s1600/stm32+pinout.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="779" data-original-width="1199" height="207" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhrh6DupQAZhz0HUlZXyk3iQYuFj1l-qlWESCKPvRXlhDvZwrPoi7QR5M7VWDFBisjHC98mEM0leaAu0uMnddL5Z98-_H_xo0mINqr9ZwOFjUr-8TWpwOZPFxxyL3iuVY-Nlbl8Ij8fMiyl/s320/stm32+pinout.jpg" width="320" /></a></div>
204. <div class="separator" style="clear: both; text-align: center;">
205. </div>
206. <br />
207. <br />
208. The STM32 board support can be added easily to the Arduino IDE, just add this line:<br />
209. <br />
210. https://github.com/stm32duino/BoardManagerFiles/raw/master/STM32/package_stm_index.json<br />
211. <br />
212. to the preferences screen:<br />
213. <br />
214. <div class="separator" style="clear: both; text-align: center;">
215. <a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgPFTu-7t5aK-XuqdyRwxotPRx77CBl69INoew1FYps2fGYzAKX9GVoz7kwclooAPrGhFiT3m9igSWhm6WcxYsEFPE-SnK11Yyudn8Pg5q3llL-igQvC3_x0Trev6VaZZj4unlThATgBIkR/s1600/Boards+Addition.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="479" data-original-width="804" height="190" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgPFTu-7t5aK-XuqdyRwxotPRx77CBl69INoew1FYps2fGYzAKX9GVoz7kwclooAPrGhFiT3m9igSWhm6WcxYsEFPE-SnK11Yyudn8Pg5q3llL-igQvC3_x0Trev6VaZZj4unlThATgBIkR/s320/Boards+Addition.png" width="320" /></a></div>
216. <br />
217. Once you have done that you can then install the STM32 cores from the board manager:<br />
218. <br />
219. <div class="separator" style="clear: both; text-align: center;">
220. <a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgBp6pPvmaEIkP9r6w_AAWOtEdrVai_bJKwPyurQ832IiJpYNFCVlGuUQpHKeZepoGN8uhhMcRn9WCaUtDBXIj2HWLLjj9-GhjeLicxBT4nZPfcCaHWcXa18i_XrD0bVxkgq5etAyCMnhl9/s1600/Boards+Manager.PNG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="444" data-original-width="789" height="180" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgBp6pPvmaEIkP9r6w_AAWOtEdrVai_bJKwPyurQ832IiJpYNFCVlGuUQpHKeZepoGN8uhhMcRn9WCaUtDBXIj2HWLLjj9-GhjeLicxBT4nZPfcCaHWcXa18i_XrD0bVxkgq5etAyCMnhl9/s320/Boards+Manager.PNG" width="320" /></a></div>
221. <br />
222. I wrote some very simple code to generate Pi using floating point maths:<br />
223. <br />
224. <div class="separator" style="clear: both; text-align: center;">
225. <a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiDSBoA9HMN93smILmCDVFWkEXDO4gq0HlZgzwxiUR2sBeAJF-DeDRH5AOdBwH1CUTVIrGgJ5B0ZAZ1cYeNU3PjjGIaQyX301sjmEoFmdIjGnnjgPbaTLYnJgN4L8qjmDR9eBCuGcFG7QO_/s1600/Code.PNG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="89" data-original-width="533" height="53" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiDSBoA9HMN93smILmCDVFWkEXDO4gq0HlZgzwxiUR2sBeAJF-DeDRH5AOdBwH1CUTVIrGgJ5B0ZAZ1cYeNU3PjjGIaQyX301sjmEoFmdIjGnnjgPbaTLYnJgN4L8qjmDR9eBCuGcFG7QO_/s320/Code.PNG" width="320" /></a></div>
226. <br />
227. Set to calculate 100,000 itterations, the good old Arduino Nano ran this code in 29.60099983215332031250 seconds. This Blue Pill board runs the same calculation in 3.07200002670288085937 seconds. Cooking!<br />
228. <br />
229. Here' how I have wired the test up for the TFT:<br />
230. <br />
231. <div class="separator" style="clear: both; text-align: center;">
232. <a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjJoZiGDzBU9NTc1SXTooC37B3gqLPagIMuJl3iMa1McCzhgOvEWPj-sXbAOW5G3JCoh2CHcp1_oIvOP0Dmh1P8cHJoXjvJ5kVSnOIpEEXcc_CyeY7pZLvd9zToTFcwTsUGtYQqpltF0stW/s1600/ILI9342+STM32+Blue+Pill_bb.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1297" data-original-width="1600" height="259" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjJoZiGDzBU9NTc1SXTooC37B3gqLPagIMuJl3iMa1McCzhgOvEWPj-sXbAOW5G3JCoh2CHcp1_oIvOP0Dmh1P8cHJoXjvJ5kVSnOIpEEXcc_CyeY7pZLvd9zToTFcwTsUGtYQqpltF0stW/s320/ILI9342+STM32+Blue+Pill_bb.png" width="320" /></a></div>
233. <br />
234. I have used the library called "TFT_eSPI" which is <a href="https://github.com/Bodmer/TFT_eSPI" target="_blank">here</a>. In the more modern Arduino IDE you just search for it and install from the library manager.<br />
235. <br />
236. Once you have done that you need to make a couple of edits to the "User_Setup" file which you can find in the libray directory.<br />
237. <br />
238. Here's mod 1:<br />
239. <br />
240. <div class="separator" style="clear: both; text-align: center;">
241. <a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEicewHHAxAciy_rB8UlcQ-_Tx3sfJq5SPRYpFRAFiAPWSWUP3wIDhu6GTo4-yyCwmGWYmSF5bcU2VnomcpvpHS2vdlv825PUZe81cKNtWHWsdosUhKckpLZ6lZe_7UTYH3UGW14zrLYNZQY/s1600/Mod+1.PNG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="144" data-original-width="723" height="63" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEicewHHAxAciy_rB8UlcQ-_Tx3sfJq5SPRYpFRAFiAPWSWUP3wIDhu6GTo4-yyCwmGWYmSF5bcU2VnomcpvpHS2vdlv825PUZe81cKNtWHWsdosUhKckpLZ6lZe_7UTYH3UGW14zrLYNZQY/s320/Mod+1.PNG" width="320" /></a></div>
242. <br />
243. and this is mod 2 - please use pins of your choice here:<br />
244. <br />
245. <div class="separator" style="clear: both; text-align: center;">
246. <a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjbx28U4Xz9OfFA-LCyrBogx1hdF4l9jNQ6b0FDsfmkffB4im8mM9AiT-DdfRNepTMuR5MMS-OKRDvaZ9rANDo2BMzHTc_oK29WNIlYXOlNmIoGrKZRoRMZpE-5X0G_91Ujo47IJNM5SZTD/s1600/Mod+2.PNG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="125" data-original-width="868" height="46" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjbx28U4Xz9OfFA-LCyrBogx1hdF4l9jNQ6b0FDsfmkffB4im8mM9AiT-DdfRNepTMuR5MMS-OKRDvaZ9rANDo2BMzHTc_oK29WNIlYXOlNmIoGrKZRoRMZpE-5X0G_91Ujo47IJNM5SZTD/s320/Mod+2.PNG" width="320" /></a></div>
247. <br />
248. Once you have done that all should be well!<br />
249. <br />
250. Please note that this library and config only works with the Arduino STM32 cores and the HID bootloader.....</div>
251. </description><link>http://g0mgx.blogspot.com/2020/03/tfts-and-blue-pills-are-you-sure.html</link><author>noreply@blogger.com (G0MGX)</author><media:thumbnail xmlns:media="http://search.yahoo.com/mrss/" url="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhrh6DupQAZhz0HUlZXyk3iQYuFj1l-qlWESCKPvRXlhDvZwrPoi7QR5M7VWDFBisjHC98mEM0leaAu0uMnddL5Z98-_H_xo0mINqr9ZwOFjUr-8TWpwOZPFxxyL3iuVY-Nlbl8Ij8fMiyl/s72-c/stm32+pinout.jpg" height="72" width="72"/><thr:total>0</thr:total></item><item><guid isPermaLink="false">tag:blogger.com,1999:blog-3322535002789091724.post-8675859427819550355</guid><pubDate>Fri, 14 Feb 2020 09:54:00 +0000</pubDate><atom:updated>2020-03-08T17:13:27.847+00:00</atom:updated><category domain="http://www.blogger.com/atom/ns#">ILI9341</category><category domain="http://www.blogger.com/atom/ns#">QRPLabs LInear</category><category domain="http://www.blogger.com/atom/ns#">STM32</category><title>Making a 10W &quot;QRP&quot; ish linear</title><description>&lt;div dir=&quot;ltr&quot; style=&quot;text-align: left;&quot; trbidi=&quot;on&quot;&gt;
252. I've started to design some software that will control a low power linear amplifier.<br />
253. <br />
254. I plan to use the 10W Amp from <a href="https://www.qrp-labs.com/linear.html" target="_blank">QRPLabs</a> as the main component - I can't make one for the price they sell these kits, so thats on order.<br />
255. <br />
256. In the meantime, I've been designing some software to control the output switching, and calculate the forward and reflected power and SWR:<br />
257. <br />
258. <div class="separator" style="clear: both; text-align: center;">
259. <iframe allowfullscreen="" class="YOUTUBE-iframe-video" data-thumbnail-src="https://i.ytimg.com/vi/SRhXYJKR1YQ/0.jpg" frameborder="0" height="266" src="https://www.youtube.com/embed/SRhXYJKR1YQ?feature=player_embedded" width="320"></iframe></div>
260. <br />
261. <br />
262. Initial software design is included for the STM32 "blue pill" baord.<br />
263. <br />
264. The software can be downloaded <a href="https://www.qsl.net/g/g0mgx//BlogFiles/Linear/Linear_Control.zip" target="_blank">here</a>.<br />
265. <br />
266. The pinoput for the STM32 board is <a href="https://www.qsl.net/g/g0mgx//BlogFiles/Linear/STM32%20Pinout.png" target="_blank">here</a>.<br />
267. <br />
268. The schematic for the RF sence using AD8307 is <a href="https://www.qsl.net/g/g0mgx//BlogFiles/Linear/RF%20Sense%20Schematic.PNG" target="_blank">here</a>.<br />
269. <br />
270. You can purchase a STM32 board <a href="https://amzn.to/38t4wPw" target="_blank">here</a>.<br />
271. <br />
272. The TFT display with touchscreen functionality is <a href="https://amzn.to/38u5JGn" target="_blank">here</a>:<br />
273. <br />
274. More to follow on this topic.<br />
275. <br />
276. Here's part 2 where I look at the Low Pass Filters and the Log Amps to take accurate power readings in software:<br />
277. <br />
278. <div class="separator" style="clear: both; text-align: center;">
279. <iframe allowfullscreen="" class="YOUTUBE-iframe-video" data-thumbnail-src="https://i.ytimg.com/vi/UC5knlMqZPA/0.jpg" frameborder="0" height="266" src="https://www.youtube.com/embed/UC5knlMqZPA?feature=player_embedded" width="320"></iframe></div>
280. <br />
281. <div class="separator" style="clear: both; text-align: center;">
282. <iframe allowfullscreen="" class="YOUTUBE-iframe-video" data-thumbnail-src="https://i.ytimg.com/vi/T6_NHJHSwq0/0.jpg" frameborder="0" height="266" src="https://www.youtube.com/embed/T6_NHJHSwq0?feature=player_embedded" width="320"></iframe></div>
283. <br />
284. <div class="separator" style="clear: both; text-align: center;">
285. <iframe allowfullscreen="" class="YOUTUBE-iframe-video" data-thumbnail-src="https://i.ytimg.com/vi/XgqjexAFDYg/0.jpg" frameborder="0" height="266" src="https://www.youtube.com/embed/XgqjexAFDYg?feature=player_embedded" width="320"></iframe></div>
286. <br />
287. <div class="separator" style="clear: both; text-align: center;">
288. <iframe allowfullscreen="" class="YOUTUBE-iframe-video" data-thumbnail-src="https://i.ytimg.com/vi/fLQSjAayd4U/0.jpg" frameborder="0" height="266" src="https://www.youtube.com/embed/fLQSjAayd4U?feature=player_embedded" width="320"></iframe></div>
289. <div class="separator" style="clear: both; text-align: center;">
290. <br /></div>
291. <div class="separator" style="clear: both; text-align: left;">
292. The finsl control software is <a href="https://www.qsl.net/g/g0mgx//BlogFiles/Linear/Linear_Control_Final.zip" target="_blank">here</a>.</div>
293. <div class="separator" style="clear: both; text-align: left;">
294. <span id="goog_980406008"></span></div>
295. <br />
296. The simple software based sequencer software is <a href="https://www.qsl.net/g/g0mgx//BlogFiles/Linear/PTT_Sequencer.zip" target="_blank">here</a>.<br />
297. <br />
298. The schematic for the transistor switches I used in the sequencer is <a href="https://www.qsl.net/g/g0mgx//BlogFiles/Linear/PTT%20Sequencer%20-%20Project.pdf" target="_blank">here</a>.<br />
299. <br />
300. The wiring layout for the STM32 is <a href="https://www.qsl.net/g/g0mgx//BlogFiles/Linear/STM32%20Pinout.png" target="_blank">here</a>.<br />
301. <br />
302. The AD8307 schematic is <a href="https://www.qsl.net/g/g0mgx//BlogFiles/Linear/RF%20Sense%20Schematic.PNG" target="_blank">here</a>.<br />
303. <div>
304. <br /></div>
305. </div>
306. </description><link>http://g0mgx.blogspot.com/2020/02/making-10w-qrp-ish-linear.html</link><author>noreply@blogger.com (G0MGX)</author><media:thumbnail xmlns:media="http://search.yahoo.com/mrss/" url="https://img.youtube.com/vi/SRhXYJKR1YQ/default.jpg" height="72" width="72"/><thr:total>2</thr:total></item><item><guid isPermaLink="false">tag:blogger.com,1999:blog-3322535002789091724.post-6850350826515600606</guid><pubDate>Sun, 02 Feb 2020 07:30:00 +0000</pubDate><atom:updated>2020-03-10T16:25:15.736+00:00</atom:updated><category domain="http://www.blogger.com/atom/ns#">Arduino 32 bit</category><category domain="http://www.blogger.com/atom/ns#">Blue Pill</category><category domain="http://www.blogger.com/atom/ns#">Mapel Blue Pill</category><category domain="http://www.blogger.com/atom/ns#">STM32</category><title>A STM32 Processor - really?</title><description>&lt;div dir=&quot;ltr&quot; style=&quot;text-align: left;&quot; trbidi=&quot;on&quot;&gt;
307. Well,<br />
308. <br />
309. In my never ending desire to fiddle with Microprocessors and/or Micro controllers, I found these boards on my local Amazon with prime next day delivery:<br />
310. <br />
311. <div class="separator" style="clear: both; text-align: center;">
312. <a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgVK5opdcyN8hoJEVYoZIijqWPo5QWjW0tCSzOrjkWt8RbLAzSWmOpN7MdqdPUXotUy_SHIQsxYHPazhsHGtoxpTIcIfPZdAU3vkK96QjJG6WwZSMeq6K2p3eRfAD26ziRGPmRw7IHslPUX/s1600/Blue_pill-STM32F103C8T6-ARM-STM32-or-arduino.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="722" data-original-width="1600" height="144" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgVK5opdcyN8hoJEVYoZIijqWPo5QWjW0tCSzOrjkWt8RbLAzSWmOpN7MdqdPUXotUy_SHIQsxYHPazhsHGtoxpTIcIfPZdAU3vkK96QjJG6WwZSMeq6K2p3eRfAD26ziRGPmRw7IHslPUX/s320/Blue_pill-STM32F103C8T6-ARM-STM32-or-arduino.jpg" width="320" /></a></div>
313. <br />
314. They are called a "Blue Pill" for some reason?!?!? The boards I ordered are <a href="https://amzn.to/37QGIor" target="_blank">these</a>. At the time of writing I could buy 5 of these boards for £15 GBP delivered.<br />
315. <br />
316. You can use them directly with an external USB -> Serial converter, but you can also upload a bootloader and make the on-board USB port work successfully.<br />
317. <br />
318. I followed the instructions here:<br />
319. <br />
320. <div class="separator" style="clear: both; text-align: center;">
321. <iframe allowfullscreen="" class="YOUTUBE-iframe-video" data-thumbnail-src="https://i.ytimg.com/vi/Tm7IWQLrKYs/0.jpg" frameborder="0" height="266" src="https://www.youtube.com/embed/Tm7IWQLrKYs?feature=player_embedded" width="320"></iframe></div>
322. <br />
323. the speed of these processors is excellent and when used in conjunction with the ILI9342 displays I have been using recently they work very well indeed.<br />
324. <br />
325. You can see an example of the processor in action in my latest musings on the BITX:<br />
326. <br />
327. <div class="separator" style="clear: both; text-align: center;">
328. <iframe allowfullscreen="" class="YOUTUBE-iframe-video" data-thumbnail-src="https://i.ytimg.com/vi/AnpU52jWU4g/0.jpg" frameborder="0" height="266" src="https://www.youtube.com/embed/AnpU52jWU4g?feature=player_embedded" width="320"></iframe></div>
329. <br />
330. All very impressive and I still fail to believe how inexpensive these MCUs are.<br />
331. <br />
332. ** UPDATE **<br />
333. <br />
334. There is an alternative bootloader (its much smaller) available for this board now, you can find instructions for using it below. This uses the HID method for uploading:<br />
335. <br />
336. <div class="separator" style="clear: both; text-align: center;">
337. <iframe width="320" height="266" class="YOUTUBE-iframe-video" data-thumbnail-src="https://i.ytimg.com/vi/Myon8H111PQ/0.jpg" src="https://www.youtube.com/embed/Myon8H111PQ?feature=player_embedded" frameborder="0" allowfullscreen></iframe></div>
338. <br />
339. <br /></div>
340. </description><link>http://g0mgx.blogspot.com/2020/02/a-stm32-processor-really.html</link><author>noreply@blogger.com (G0MGX)</author><media:thumbnail xmlns:media="http://search.yahoo.com/mrss/" url="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgVK5opdcyN8hoJEVYoZIijqWPo5QWjW0tCSzOrjkWt8RbLAzSWmOpN7MdqdPUXotUy_SHIQsxYHPazhsHGtoxpTIcIfPZdAU3vkK96QjJG6WwZSMeq6K2p3eRfAD26ziRGPmRw7IHslPUX/s72-c/Blue_pill-STM32F103C8T6-ARM-STM32-or-arduino.jpg" height="72" width="72"/><thr:total>0</thr:total></item><item><guid isPermaLink="false">tag:blogger.com,1999:blog-3322535002789091724.post-269207795724976572</guid><pubDate>Sun, 02 Feb 2020 07:21:00 +0000</pubDate><atom:updated>2020-02-02T09:06:04.351+00:00</atom:updated><category domain="http://www.blogger.com/atom/ns#">40M BITX</category><category domain="http://www.blogger.com/atom/ns#">BITX</category><category domain="http://www.blogger.com/atom/ns#">BITX DDS VFO</category><category domain="http://www.blogger.com/atom/ns#">BITX40</category><title>Back to the BITX</title><description>&lt;div dir=&quot;ltr&quot; style=&quot;text-align: left;&quot; trbidi=&quot;on&quot;&gt;
341. Well,<br />
342. <br />
343. I wanted to do a simple (ish) construction project for <a href="http://www.youtube.com/c/MarkG0MGX" target="_blank">my YouTube channel</a> and decided a BITX would be just the ticket.<br />
344. <br />
345. <div class="separator" style="clear: both; text-align: center;">
346. <iframe allowfullscreen="" class="YOUTUBE-iframe-video" data-thumbnail-src="https://i.ytimg.com/vi/YbPiViO2G4Y/0.jpg" frameborder="0" height="266" src="https://www.youtube.com/embed/YbPiViO2G4Y?feature=player_embedded" width="320"></iframe></div>
347. <br />
348. <div class="separator" style="clear: both; text-align: center;">
349. <iframe allowfullscreen="" class="YOUTUBE-iframe-video" data-thumbnail-src="https://i.ytimg.com/vi/4UvGagt21c8/0.jpg" frameborder="0" height="266" src="https://www.youtube.com/embed/4UvGagt21c8?feature=player_embedded" width="320"></iframe></div>
350. <br />
351. <div class="separator" style="clear: both; text-align: center;">
352. <iframe allowfullscreen="" class="YOUTUBE-iframe-video" data-thumbnail-src="https://i.ytimg.com/vi/pQ35qVIrvVo/0.jpg" frameborder="0" height="266" src="https://www.youtube.com/embed/pQ35qVIrvVo?feature=player_embedded" width="320"></iframe></div>
353. <div class="separator" style="clear: both; text-align: center;">
354. <br /></div>
355. <div class="separator" style="clear: both; text-align: center;">
356. <iframe allowfullscreen="" class="YOUTUBE-iframe-video" data-thumbnail-src="https://i.ytimg.com/vi/AnpU52jWU4g/0.jpg" frameborder="0" height="266" src="https://www.youtube.com/embed/AnpU52jWU4g?feature=player_embedded" width="320"></iframe></div>
357. <br />
358. If you like what I am doing please subscribe to my channel and give me some support.<br />
359. <br />
360. Thanks muchness!<br />
361. <br />
362. ** UPDATE **<br />
363. <br />
364. Following the issues I noted in the video on balancing the Balanced Modulator, I have added some capacitance either side as highlighted in this image:<br />
365. <br />
366. <div class="separator" style="clear: both; text-align: center;">
367. <a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhnhCgpDt1vW8mhUFUdhkPrJQoNdE8EL6CDv9srrcshvuymLk2mpQcoRYfnBFg-QI5qWCN4d8VCJofmT0PxSHW1s4hmC-rR_2A5gZo-qfBGdKgSJ_c63fkkJp4dCXNTdRWRu8DpNPL2oenK/s1600/Balanced+Mod+Update.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="834" data-original-width="1159" height="230" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhnhCgpDt1vW8mhUFUdhkPrJQoNdE8EL6CDv9srrcshvuymLk2mpQcoRYfnBFg-QI5qWCN4d8VCJofmT0PxSHW1s4hmC-rR_2A5gZo-qfBGdKgSJ_c63fkkJp4dCXNTdRWRu8DpNPL2oenK/s320/Balanced+Mod+Update.png" width="320" /></a></div>
368. <br />
369. By careful adjustment of the balance pot and the trimmer I have now got excellent carrier supression:<br />
370. <br />
371. <div class="separator" style="clear: both; text-align: center;">
372. <a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgIJGusBABRXsp9p31p2sNLopTJwE6hXH0tBOxmcXaue9ZOm9Z5FGMoNWdecGIQbaIZSlZTbFvJBo8ZkhLpqwtCSueXyjkqCH_NoKqKum-RGd2DNLiNfCoVJ885_aS4Si6x2Ud6XVaknm6_/s1600/balmod.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="480" data-original-width="800" height="192" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgIJGusBABRXsp9p31p2sNLopTJwE6hXH0tBOxmcXaue9ZOm9Z5FGMoNWdecGIQbaIZSlZTbFvJBo8ZkhLpqwtCSueXyjkqCH_NoKqKum-RGd2DNLiNfCoVJ885_aS4Si6x2Ud6XVaknm6_/s320/balmod.png" width="320" /></a></div>
373. <br />
374. much better, dont you think?</div>
375. </description><link>http://g0mgx.blogspot.com/2020/02/back-to-bitx.html</link><author>noreply@blogger.com (G0MGX)</author><media:thumbnail xmlns:media="http://search.yahoo.com/mrss/" url="https://img.youtube.com/vi/YbPiViO2G4Y/default.jpg" height="72" width="72"/><thr:total>0</thr:total></item><item><guid isPermaLink="false">tag:blogger.com,1999:blog-3322535002789091724.post-756268385135019470</guid><pubDate>Sun, 19 Jan 2020 09:23:00 +0000</pubDate><atom:updated>2020-01-19T09:23:19.509+00:00</atom:updated><category domain="http://www.blogger.com/atom/ns#">ADF4351</category><category domain="http://www.blogger.com/atom/ns#">SDRPlay</category><category domain="http://www.blogger.com/atom/ns#">SDRPlay Spectrum Analyser</category><title>Spectrum Analysis</title><description>&lt;div dir=&quot;ltr&quot; style=&quot;text-align: left;&quot; trbidi=&quot;on&quot;&gt;
376. Well,<br />
377. <br />
378. I've been messing about recently with some inexpensive alternatives to a Spectrum Analyser. I find my Rigol DS-815 one of the best investments I've ever made, it represents excellent value for money. However, its still an expensive purchase and I wondered if the inexpensive alternatives were any good.<br />
379. <br />
380. First off, I tried one of these that you can source on all good auction sites, here is a link to the device on Amazon:<br />
381. <br />
382. <a href="https://amzn.to/2Te1h9X" target="_blank">Without a box</a><br />
383. <br />
384. and also:<br />
385. <br />
386. <a href="https://amzn.to/2Nge73O" target="_blank">With a box (if you are posh like me)</a><br />
387. <br />
388. <div class="separator" style="clear: both; text-align: center;">
389. <a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhb-ju1sFc65n821dPXcbvx93zSvnEph3vRtN7-wOQYjFpkA4dyRSCEhT9jNSUIcWL_zK7qhQK0WTHWAI1fh6r5XRb5LcUDy5xgTOteNe8jCE30o1u1GXnLGMZwKVAzo8h6LLbZeGBBbInI/s1600/ADF4351+spec+an.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="645" data-original-width="846" height="243" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhb-ju1sFc65n821dPXcbvx93zSvnEph3vRtN7-wOQYjFpkA4dyRSCEhT9jNSUIcWL_zK7qhQK0WTHWAI1fh6r5XRb5LcUDy5xgTOteNe8jCE30o1u1GXnLGMZwKVAzo8h6LLbZeGBBbInI/s320/ADF4351+spec+an.jpg" width="320" /></a></div>
390. <br />
391. They look like the image above and represent exceptional value for money - you couldn't purchase the bits for the price.<br />
392. <br />
393. Here's my evaluation of the device:<br />
394. <br />
395. <div class="separator" style="clear: both; text-align: center;">
396. <iframe width="320" height="266" class="YOUTUBE-iframe-video" data-thumbnail-src="https://i.ytimg.com/vi/Kp_T2c5hl6Y/0.jpg" src="https://www.youtube.com/embed/Kp_T2c5hl6Y?feature=player_embedded" frameborder="0" allowfullscreen></iframe></div>
397. <br />
398. Second I tried an SDRPlay and associated software as a Spectrum Analyser:<br />
399. <br />
400. <div class="separator" style="clear: both; text-align: center;">
401. <iframe width="320" height="266" class="YOUTUBE-iframe-video" data-thumbnail-src="https://i.ytimg.com/vi/PiZWhQn3wLk/0.jpg" src="https://www.youtube.com/embed/PiZWhQn3wLk?feature=player_embedded" frameborder="0" allowfullscreen></iframe></div>
402. <br />
403. Next will be a Red Pitaya... so watch this space.</div>
404. </description><link>http://g0mgx.blogspot.com/2020/01/spectrum-analysis.html</link><author>noreply@blogger.com (G0MGX)</author><media:thumbnail xmlns:media="http://search.yahoo.com/mrss/" url="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhb-ju1sFc65n821dPXcbvx93zSvnEph3vRtN7-wOQYjFpkA4dyRSCEhT9jNSUIcWL_zK7qhQK0WTHWAI1fh6r5XRb5LcUDy5xgTOteNe8jCE30o1u1GXnLGMZwKVAzo8h6LLbZeGBBbInI/s72-c/ADF4351+spec+an.jpg" height="72" width="72"/><thr:total>0</thr:total></item></channel></rss>

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