Thomas Witherspoon, K4SWL, who is interviewed in this article, runs a great blog (<a href="https://qrper.com" rel="nofollow">https://qrper.com</a>) and YouTube channel (<a href="https://youtube.com/@thomask4swl" rel="nofollow">https://youtube.com/@thomask4swl</a>) about low power ham radio (QRP).