Lightenna EF001 Micro Antenna
I have been using the Lightenna EF001 on all of my Alfa jets and small electric planes for over four years and they are excellent. Never had any lost signal issues or distance issues like I had when I tried spooling up extra antenna wire. I usually tape them to the bottom of the fuselage with clear tape.
I give this product 5 stars. Review by Ewing, Nathan