home point

Hello! I apologize if this topic seems redundant, but I would like to gather research on what the minimum amount of satellites you personally need for your Spark's home point to be updated? I realize that there are a lot of threads that discuss this, but from what I've seen, there really isn't...

Every time I try to use RC location for Home Point (rather than drone takeoff location) I get the above error message: Mobile Device GPS Signal is Too Weak. The RC has no GPS antenna so it is referring the the phone as the problem. But my phone's GPS works fine for maps and all other...