"very simple indeed!. You might get a little more spring effect if you could leave 3-4 strips material on the bottles which you bend and tie together below"

"Hey guys, stop arguing and start coding. One line (about the 9th pulse) fixes it, about two or three more are needed to keep track of the total frame length and see if it matches some pre-recorded average.
Who will be first to commit a better fix?"

"@Sandro: yes, stuff will fsck up if it gets a bad signal. But how often does that happen? On the other hand, It will reset correctly when it sees a long enough sync pulse and we assume that the too short sync pulse is a transient thing.
I have no…"

"oh, btw it is in Tools/PPM_decoding/Timers.pde:ISR(TIMER4_CAPT_vect)//interrupt."

"nice, ning ate my on the spot patch :(
change line 105 to read:
if((Pulse_Width>5000)||(PPM_Counter==8)) //Verify or guess this is the sync pulse

Untested code, use at your own risk.
Was that worth 12 pages of discussion?"

"@PX4, the picture is much broader than that one scope trace! We have already established it is a corner case, so it is safe to assume it will not occur at startup. That is when you acquire your sync pulse and start your counting to whatever number…"

"Sorry if this already has been said, but this storm in a teacup is not requiring a firmware change from frsky, especially if this deteriorates the update frequency of the receiver.
The whole thing IMHO comes down to: do you need verification that…"