Knowing how your antennas work or build and optimize our antenna is very rewarding. Unfortunately, it needs knowhow and some costly equipment to do that. Today we will change that, and I show you an affordable new tool which enables these tasks. This small device was one of my best investments I made so far.<br /><br />At the end <br />- You know how to build and optimize a LoRa ground plane antenna<br />- You will know How to tune a commercially available antenna<br />- You will get a little theory behind it, as usual<br />And we will have a close look at this small gadget from China and compare it with a professional tester<br /><br />Links:<br /><br />N1201A Antenna Tester: <a href="http://s.click.aliexpress.com/e/Nhr3Xedw" target="_blank" rel="nofollow">http://s.click.aliexpress.com/e/Nhr3Xedw</a><br />Calibration Set: <a href="http://s.click.aliexpress.com/e/q3VbiQ7" target="_blank" rel="nofollow">http://s.click.aliexpress.com/e/q3VbiQ7</a> or <a href="http://s.click.aliexpress.com/e/VJeqJY7" target="_blank" rel="nofollow">http://s.click.aliexpress.com/e/VJeqJY7</a> (not tested)<br />N2201SS (2 ports): <a href="http://s.click.aliexpress.com/e/CHDgGnr2" target="_blank" rel="nofollow">http://s.click.aliexpress.com/e/CHDgGnr2</a><br />Ground Plane calculator: <a href="http://www.buxcomm.com/ground_plane_calculator.htm" target="_blank" rel="nofollow">http://www.buxcomm.com/ground_plane_calculator.htm</a><br />SMA connector for Antenna: <a href="http://s.click.aliexpress.com/e/RBAYzbU" target="_blank" rel="nofollow">http://s.click.aliexpress.com/e/RBAYzbU</a><br />What's inside the N1201SA: <a href="https://notes.superlogical.ch/?p=89" target="_blank" rel="nofollow">https://notes.superlogical.ch/?p=89</a><br /><br />Supporting Material and Blog Page: <a href="http://www.sensorsiot.org" target="_blank" rel="nofollow">http://www.sensorsiot.org</a><br />Github: <a href="https://www.github.com/sensorsiot" target="_blank" rel="nofollow">https://www.github.com/sensorsiot</a><br /><br />My Patreon Page: <a href="https://www.patreon.com/AndreasSpiess" target="_blank" rel="nofollow">https://www.patreon.com/AndreasSpiess</a><br /><br />If you want to support the channel, please use the links below to start your shopping. No additional charges for you, but I get a commission (of your purchases the next 24 hours) to buy new stuff for the channel<br />For Banggood <a href="https://bit.ly/2jAQEf4" target="_blank" rel="nofollow">https://bit.ly/2jAQEf4</a><br />For AliExpress: <a href="http://bit.ly/2B0yTLL" target="_blank" rel="nofollow">http://bit.ly/2B0yTLL</a><br />For ebay.com: <a href="http://ebay.to/2DuYXBp" target="_blank" rel="nofollow">http://ebay.to/2DuYXBp</a><br /><br /><a href="https://www.facebook.com/profile.php?id=100013947273409" target="_blank" rel="nofollow">https://www.facebook.com/profile.php?id=100013947273409</a><br /><a href="https://twitter.com/spiessa" target="_blank" rel="nofollow">https://twitter.com/spiessa</a><br /><a href="https://www.instructables.com/member/Andreas%20Spiess/" target="_blank" rel="nofollow">https://www.instructables.com/member/Andreas%20Spiess/</a><br />Please do not try to Email me or invite me on LinkedIn. These communication channels are reserved for my primary job<br /><br />Equipment in my lab: <a href="http://www.sensorsiot.org/my-lab/" target="_blank" rel="nofollow">http://www.sensorsiot.org/my-lab/</a><br />...<br /><a href="https://www.youtube.com/watch?v=ZpKoLvqOWyc" target="_blank" rel="nofollow">https://www.youtube.com/watch?v=ZpKoLvqOWyc</a>