On 20/01/2020 17:37, geojohnt via Groups.Io wrote:
The thing that most affects the power level reading can be cable length. Decrease it and it will improve, increase the length and it will go up.
Maybe the long awaited drier weather (first this year) is drying something out and lowering the reading. It is a minor alteration and I see an occasional change in the evening if it is cold and dry.
My reading is -14dBm and during a cold dry evening often goes to -13dBm. I have a relatively short cable. Can't remember exact length but certainly less than 10 meters which explains my lower reading.