Using radio to contact persons on ground while flying?

Jose wrote:

One problem you are going to have is that the ground station is going
to have a hell of a time understanding what you are saying due to the
cabin noise.


Actually I have used an FRS radio quite successfully air to ground. It's
great line of sight and works quite well. You don't have fifty mile
range, but for short distances it's worth a go.


I have seen some with external mic and antenna connections.