No capacitors needed for 2.4GHz Mike
Ned
2.4GHz is brilliant at not picking up interference via the aerial.
It does nothing whatever for the interference that gets in via the ESC output leads, power leads and servo leads. It also does nothing for supply voltage fluctuations caused by heavy loads and weak wiring, in particular the mysterious happenings that come from dubious bits of negative wiring. Been there, read the book, seen the film, got the pie, eaten the tee shirt.......
Semiconductor output stages do a cracking job of 1) acting like a crystal set and detecting interference picked up by the wire that they are supposed to be feeding as a signal 2) because they are, in part, amplifying devices, amplifying it to a useful (or, in our case, annoying) level, and creating their own signal.
do i need to do em like the one jan put up?
Yes. The motor may have them fitted, extra ones are at worst harmless, at best they stamp all over the problem. Because they are curing a frequency, rather than purely power problem, the same values work for a wide range of powers. The important thing is not so much the value as the construction which determines the RF performance, but the values shown are good.
