"hee
i think he want to do this ->  http://ardupilot.org/copter/docs/precision-landing-with-irlock.html"

"Hello Mr. Drotek
What´s wrong with u? I do not understand how to react so negatively to legitimate criticism. when I compare both products, I would not buy your product. Realy! 

YOUR comment was stupid. 

P.S. I use the big one (200A) in a Big Hexa…"

"hello manuel

thanks, yes, when i´m back from my Travel i will do it. "

"yes, i agree , i also have a M8N from CSG Shop, works absolutely perfect here in Germany.I also have the new one M8T large from Drotek (the big one) and a XL M8N from Drotek , both also works perfect. every time more as 17 SAT and HDOP below 0.8 !"

"what for an issue? I fly the AUAV-X2 with RC5, RC7 and now with RC8 an no Problems. This Board works fine."

"ARMING_CHECK  -33 , skip the Sonar/Rangefinder Check"

"i have a LIDAR and i must lift of the Copter for Prearm check to 50cm and then down. i´m not sure thats the same with a Sonar. i think so."

"Hey Terry
Pls do this -> "The check can be disabled by setting ARMING_CHECK to Skip Param/Sonar." U found the Parameter in the Full Parameter List.
Greetings, pit"