Thanks to Michael Murphy (KI8R) of "DX Engineering" for this excellent tutorial on the myths and misunderstanding surrounding SWR (standing wave ratio).
Michael reviews everything you need to know about SWR in language most radio amateurs understand. His explanations are clear, direct, and simple. This is one video you should have in your amateur radio library.
If you can't see the video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=L1_NLEpsW90.
Thanks for joining us today.
Aloha es 73 de Russ (KH6JRM).
Here are some comments from Michael (KI8R):
What is Standing Wave Ratio (SWR) and how does it impact your amateur radio antenna system? Is there really such a thing as “perfect” SWR and does it really matter? DX Engineering’s Michael Murphy, KI8R, covers the basics of SWR, including reflected power; factors that can influence SWR readings, such as lossy coaxial cables; the importance of measuring SWR at the antenna; and some of the myths and misinformation surrounding this widely used measurement in ham radio. Click on the links below for some great SWR resources, as well as low-loss coax cables from DX Engineering discussed in the video:
ARRL Antenna Book for Radio Communications, 25th Edition
https://www.dxengineering.com/parts/a...
ARRL Handbook for Radio Communications
https://www.dxengineering.com/parts/a...
Understanding SWR by Example
https://www.arrl.org/files/file/Techn...
SWR Reference Chart and SWR Calculator
https://www.dxengineering.com/techart...
DX Engineering RG-213U PL-259 Low-Loss 50-ohm Coax Cable Assemblies
https://www.dxengineering.com/search/...
DX Engineering 400MAX PL-259 Low-Loss 50-ohm Coax Assemblies
https://www.dxengineering.com/search/...
