Futaba 6ex FASST

[typhoon_driver]

Paul, I may consider getting a 2.4gig futaba then

[m2xt]

Hi Gary, I remain puzzled why some users have found problems with these 2.4GHz sets (and Spectrums) when used with some electronic interfaces / speedos. See Terrys posts on the same thread I linked to above. I have not been able to replicate any of the problems reported but thought I would mention it as it appears limited to robot applications.

[john]

paul

whens M2 coming back to fight

[kane]

Paul, its not just robots... Ants trucks have a multifunction unit that doesnt work properly when running from an AR6000. Works fine with standard radio. Apparently the 6EX works fine too.

[m2xt]

never say never but I no longer have any plans to return to the arena so I will not be able to prove that M2XT has the best flipper with its remote control variable pressure system of 10 to 50 bar :sad:

[m2xt]

Hi Kane, any idea why because surely the receiver pulse output is not dependant on the carrier frequency?

[john]

im sure you can prove that when its back on TV

i have faith that its going to come back !

[big_nipper]

The 3 main problems we have with the spectrums are the default neutral is not 1.5mS. Can easily be adjusted using the trims.
They dont seem to work when really cold, Solved by moving them away from the CO2 stuff.
The pulses are only upto 3.3 volts, less if external circuit pulls more current. Solved by Resistor changes in mixer board to drive the Opto-Isolators correctly. Bear in mind that most new receivers (including 40MHz) are 3.3V and it really depends on whats attached to weather they will work and even after saying that they are only minor problems and the advantages of 2.4GHz outway them for use.

Must admit I did like Pauls idea when I first saw M2 of the remote Isolation, does improve safety alot.

[kane]

I have no idea unfortunatley... I dont have the equipment to play with it :sad:

[m2xt]

Mark, voltage levels now that would explain it. Ill put a set on the scope tomorrow. I do recall a number of issues with driving interfaces with opto isolation some years ago which was solved by putting a failsafe inbetween to use it as a buffer / driver. The Ian Swann interface has opto isolation and would explain Terry Miles problems.

I always felt fair safer with the power relays and it also came in handy for S7 when I had to do a power down reset twice to reset a locked up Roboteq in the fight against Atomic - still lost though.