My P3A has had an occasional problem over the past few months. Probably about every 6th time on startup I get a weak RC signal 2-3 bars, with aircraft right in front of me and antenna pointed correctly at it. It will flip between safe and unsafe to fly for several minutes. It has persisted over several firmware updates. I can switch off the RC and back on and it won't help. I seem to just have to wait for about 3-5 minutes, then it will jump up to 100%. I've taken off in this weak signal state and hovered in front of me and it still takes several minutes to jump to 100%. Anyone now of a fix or what the problem is? I've searched the forum and have found several instances of other people with a similar problem, but no cure. Thanks for any help.