Assuming though that you do start a flight with a fully charged battery, with the light turning red really early in the flight, I think you'll find the Naza Assistant software inserts some default values for voltage (depending on the battery type you choose, 3S or 4S). For a 3S battery, I think it would default to 11.1V onloaded voltage. If you don't insert any value for "Loss", then soon after you start flying, the 'loaded voltage' will drop below 11.1V and start warning you of a low voltage.
After measuring my voltage throughout an entire flight via the Eagletree logger, I set my voltages as per http://fangin.com/blog/2012/06/29/dji-naza-voltage-protection-levels/
btw – I've got some FPV gear on the way too. It's based around a 1.3GHz 1000mW Lawmate transmitter, diversity receive and Fat Shark Dominator goggles.
]]>I haven't explored the gimbal option yet. I'm in the middle of getting setup for FPV. I bought Fatshark Goggles and Eagletree OSD, logger and groundstation from Hobbyking and I bought the video transmitter, receivers and antennas from readymaderc.com.
Range of my receiver – like I always say, further than I can comfortably see a model.
]]>