ORIGINAL: MN Seminole
rmsingh, Ithink Iknow what you are talking about and I am also trying to figure out the same thing. I got my Apprentice this week and got it all put together. I have a high pitch tone thats constant. It seems to get louder when I hook up and operate the wing servos. The sound seems to be coming from the reciever but I'm not 100% sure. I followed all directions and the plane seems to be working fine.
Ihave found nothing online about this. Ihave a Hobby Zone store locally and need to have them check it out but can't get there in the next week. Ialso have a Super Cub and it has zero noise from inside.
Does this sound like what you are getting? Ihave a feeling that its normal for the Apprentice.
This is exactly what I'm experiencing. I just emailed HorizonHobby product support. I will post if I get any response.