From the OP's description of his problem, I highly doubt he had a power problem. <div>
</div><div>Problem occurred at the exact same spot, twice.  Another poster nailed it!  Multipath distortion.  The RF signal was lost, not the rx losing power. When the RX came back into range, he regained control. </div><div>
</div><div>These are digital signals, and when you get  MPD, signals arrived out of order, k nd f l  e wh you a e tal ing to s  eon and th v ice bre ks up.   </div><div>
</div><div>If it happens in a certain time span the RX drops and reconnects when it regains the proper order of the signal.  Using 2 channels helps eliminate this, but does not 100% prevent it. </div><div>
</div><div>From what I gather the OP was also pointing the tip of the antenna at the plane, where the weakest part of the signal is at.  He was basically flying outside of the donut.  If the plane entered an area where it received garbage on those channels, or in that spectrum that was stronger than the TX, that will cause the exact problem he had.  </div><div>
</div><div>No need to blame Spektrum, just about any brand TX/RX in these situations can have this happen.   I fly a DX6i and have never had any problems with any of my planes, including the Ultra Micros. I flew my Corsair out so far it was a tiny speck and I still had 100% control of it. </div><div>
</div><div>2.4Ghz has excellent range, and is very tight, but it is still capable of being interfered with.  For all we know that small portion where he flies may be in direct contact with a wireless internet tower that provides home internet over 2.4 Ghz like mine.  That can easily shoot a plane down with just the right conditions. </div>