On 9 Dec 2019 at 0:51, J Mcvey wrote: > At 50V plate I was losing the signal -100dbm (2.24 uv) . > I think 2uv is the lower sensitivity spec for this radio. anyway! It might be the "spec", but I measured mine at 1 uV for AM, and something like 0.1 uV for CW. See this video: https://www.youtube.com/watch?v=vlz83QXM66A Ken W7EKB