Here’s your video introduction to Section 7.4, “Interference and Noise,” in the 11th Edition of the ARRL Extra Class License Manual for Ham Radio.
You can find a complete list of the Amateur Extra videos by clicking here, or click here to go to the YouTube Amateur Extra playlist. Please post your questions either below or on the YouTube page for this video. Good luck in your studies!
Keep up the good work on the Extra topics. I am anxious to get my tech class ready for those new topics.