Eddie

I have to agree with you, being an AMT user myself as well as a Multiplex PPM one. The AMT system (and I'm happy to acknowledge any other brand with the same features) is also set to a 200ms rotation delay - that is the time the ECU will allow the Rx to return to the same channel - before it will shut down the turbine. Most Rx's are doing a full rotation in about 50ms and therefore the AMT ECU system will easily fit into any failsafe delay requirement. With the Multiplex IPD PPM Rx I can only comment having used the 12 ch - normally I only use straight PPM - and having had Mpx do an update on the rotation speed as I was getting enigne cuts from my AMT ECU's due to it being too slow. After this update the 12ch IPD Rx seems fine. However, I'm about to use a Micro 7 IPD and would like to hear comment on it's performance. Overall these Mpx Rx's are great and work very well with all other radio transmitters. BTW, some of them even have a dual battery redundancy system built in too.

However, given the choice I will always choose PPM over PCM as the only time I've had a radio system induced crash it was with PCM. So after more than 500 turbine flights since then, I will not risk it again.

Springbok Flyer