Spektrum RX internal "glitch buster" cap mod

[simplechamp]

Today I had one of my SR300 open because I wanted to add an antenna tube mount directly to the case. While it was open I noticed on one side of the circuit board there was quite a bit of room open. I, like many others, have found the internal BEC on the MMP can struggle with high torque, amp hungry servos, causing glitching and brown outs at the RX. Usually a cap is enough to fix the problem, and up until now I had always just used an external cap. But I figured if there is room in the RX case, why not put it inside?

I looked in my box of electronic components and found a 1500uF, 10V cap that fit perfectly. From there it was just a little CA glue to attach the cap to the board, and soldering up some spare servo wire to make the connections. Note that you can solder to any of the + pins and any of - pins. Also, it's hard to see, but there is a little slot on the side of the board next to the cap that the wires fit through perfectly (not sure if other Spektrum boards like SR3000, SR3100 have that too?)

Closed the case back up, everything fit snugly, and now I don't have to use up a port with an external cap. Still works just like when I had the external cap, no glitching or brown-outs.