"This launcher works well:

http://youtu.be/bptM-XRdLCU"

"So Steve - for those of us who launch with a catapult launcher, this can be a serious problem.  Thanks again."

"Hi Steven:
Thank you for the post.  I too had issues with 1.2.11 Mission Planner.  The problem I encountered was the fact that instead of flying at the designated 400 feet AGL, it flew to 1,300 feet!
I have since updated to 1.3.12 and will check…"

"Joshua - did you ever get an answer to your question regarding the Pixhawk components operating in the cold?

Thanks
Bret C"

"Thank you Jack:

Bret C"

"The Nampilot:

Thanks for your note.

Yes, I fully understand the MANY months of hard work.  I have been there, done that and we are doing it now.  
I should have mentioned we have another autopilot that already lands within a 15 ft circle in any…"

"Jack - we want to set up a system to operate the MavLink on the proper frequency in NZ too.  Did you leave your 433 Mhz mavlink set up as default or did you change the frequency?  If you changed the frequency, how did you do that?  I…"

"Thanks Joshua:

Yes, I just want to simply turn the beeper on to locate the aircraft in tall grass or crops.
Thanks!

Bret"

"Thanks Randy:

Yes, you are correct.  The reason I want to trigger the beeper remotely is to find the aircraft when it lands in tall crops or grass.

Thanks!
Bret C
AC0AE"

"So - based on the lack of feedback on this posting, is it correct to assume that it is not possible to trigger the PixHawk beeper via the remote control?"

"Also - after calibration should I be able to check the aircraft with a compass to verify that the direction it is setting is the actual direction it is pointing on the mission planner?"

"Guys I need clarification here. So I am setting up a plane with a Pixhawk a and external compass. So I select the "pixhawk/Px4?" Seams strange there is a photo of an external 3DR compass but that is not what we should select?"