if (from_receiver != null) {
mElevationView.setText(AltosDroid.number("%3.0f°", from_receiver.elevation));
mRangeView.setText(AltosDroid.number("%6.0f m", from_receiver.range));
if (from_receiver != null) {
mElevationView.setText(AltosDroid.number("%3.0f°", from_receiver.elevation));
mRangeView.setText(AltosDroid.number("%6.0f m", from_receiver.range));