Years ago I was flying in a friends private plane. I used a Ht on 146.52 to
make some contacts. My friend announces that we are lost. It took about 10
minutes before I found a landmark and got him following a road to the airport.
My friend believes that the HT interfered with his radio compass and put use
off course. After the HT was turned off and time was allowed, the compass
returned to normal. I don't know how it happened, but it did! Now I just
carry my ht on the plane and do not operate!

Randy ka4nma