Good evening, friends have been reading in some forums regarding the
feeders and they tell me that the radio signal of my feeder that is
almost always in yellow, they tell me that it is not normal. It should
be added that my geographical situation in which there are some
mountains hinder a little the free vision

In my opinion, planes do not fly very much in this area.
And here the horizon is closed by mountains. What is the Maximum Range I can Get?

seems you have very high mountains at very close range in all directions,
and no airways or major airports nearby.
most favorable seems to be the east-west axis.