"Maybe a future feature for APM a buzzer that comes on after a settable length of time, useful if you forget to unplug the battery or loose your aircraft ! - Or to beep at any other event low battery, time, etc"
"Chris: I've never seen that part of the wiki before - I should look more !
Just thought it might be cheaper than buying a RC radio TX. As a radio ham I could use 400 Watts TX from the ground !!
"Yes, indeed DGPS is really the only practical option and LF beacons like these http://www.effective-solutions.co.uk/beacons.html would be a good idea..
Making a reference station is not that difficult, just record RINEX data over say 24hrs and…"
Hey my first post !, I've been looking at quadrotors for years on and off but think settled on the Arducopter (I Have used Arduino's and some knowledge of programming) and now have some simple questions. 1. What are/is APM & AC2.2. Is there a 'all…