There is a lot of people talking about the "problem" with the Spektrum receivers and low voltage. If everybody would stop and think about this it's not a new problem that has just occurred with the Spektrum equipment. ALL receivers have a voltage cutoff point where they quit working. It's just basic electronics that the receivers are designed for a range of voltages. Before the Spectrums hit the market the same thing would happen with our older radios, if the voltage dropped too low the receiver would quit working. Now introduce the Spectrums into the picture and you have the same problems, just with a different voltage level. It does appear that the Spectrums are a little more sensitive about the voltage than older equipment. But in reality there is nothing new here just because it's a new radio. It all boils down to the fact that you need to ensure that you have a battery large enough to provide adequate power to your on-board radio system. And throughout the flying day you need to monitor your battery to ensure that it's got enough juice left to fly with. It's been the same procedures that have been used for the last 30 years (or more).

Now with that in mind I will say that I think that Spectrum made one mistake, and that is providing too small of a battery to realistically run their equipment. Since they are supplying digital servos, which have a higher current draw than standard servos, with the DX7 they probably should have included a larger battery pack than they did. But that's something that can be dealt with before the radio gets in the air.

Ken