"Salim, I am having the same problem with getting my quad to arm. I can change the flight mode, but I can't arm. I'm also using the 433MHz 3DR radios. -Jake"

"Thank you all. I resolved the problem."

"I thought the 433mhz kits were going to be two "air" modules with a TTL cable for the ground side."

"I'm having a bit of trouble here? Where are all these kits coming from? lol I cant get one and I've been trying since they first came out to get one! From what I understand none of these work because of interference using the USB from the…"

"I'm facing the same problem.the joystick bar stuck after connecting the APM via 3DR RadioTelemetry Kit.I'm also wondering how to deal with it.  "

"Hi, try this link. Mabye helps: http://rcexplorer.se/page14/gopro/gopro.html Petr"

"My apologies for the misunderstood of the question. I need the live wireless video feed of the camera Gopro?"

"Can you rephrase the question? I don't understand."

"Is there a way to get video in the same time of flying in my ground computer ? I'm using camera GoPro."

"I'm no expert on them, but I understand the 3DR modules have a range of several kilometres depending on antennas, terrain ... There is a dedicated discussion here: 3DR Radios I can almost guarantee that your special Hexa will not fly well at…"

"Please, how did you calculate the angle ?"

"Thank you. But what's the max range of distance of this receiver? For radio, I need to use joystick, is it easy ? Please, can I ask you more questions ?  "

"This would be a better telemetry option: https://store.diydrones.com/3DR_RadioTelemetry_Kit_915_Mhz_p/kt-telemetry-3dr915.htm You will still need Radio Control though (Hitec or similar)."

"Thank you very well. I'm trying to apply your tips,but my receiver Hitec was ruined. Please, have you idea about connection wireless ? because I need to change because I'm using Hitec receiver 9 channels.what's you suggest for this…"