weird electrical issue in Durango.

[Malcnz]

Ran Durango for first time yesterday and was awesome but had a weird problem in that the PT wouldnt work ..it would start but not count laps...in the 3rd heat it did count but the motor felt like it was cogging but was fine top end and then in final 4th heat it didnt count again but motor returned to normal...weird
have PT on chassis inbetween motor and speedy.
controller is the LRP ssx and LRP 6.5 motor and running a spektrum micro receiver...running lipo IP 4200s...any help would be appreciated.

[offroadrc]

i would put the transponder on a different place

[Malcnz]

sure but not to many options on the Durango..and wondering if there is more to it than that..

[AmiSMB]

It is always best with Spektrum receivers to use a power cap which helps with lost laps issues and can help with interference with the Spektrum equipment.

[mikeyscott]

Originally Posted by AmiSMB

It is always best with Spektrum receivers to use a power cap which helps with lost laps issues and can help with interference with the Spektrum equipment.

I've been mulling putting the power cap on my Cat SX again with my Micro to help. Haven't had issues, it's more to prevent..

Spektrum cap is just sat in my box at the moment.

[MALLET]

Hi Malcnz,

I've got mine on the side of my battery works brill. You can see the Velcro on the battery (see picture) as I use the PT on all my other 10th scale

[one]

Try different spots. I had same issue and moved it, from next to the esc to the side near the battery. Also when it did not work it was flat on the chassis, now it is on it's side, no problem at all.

[Adam Skelding]

Try plugging your PT into the Batt output on your receiver.
I had a similar problem with my D4.
Someone told me to use the Batt output on the RX rather than the 3rd channel.

Something about it being a more stable source.

Worked fine and that's where my PT's are plugged in now.

[Northy]

Mmmm, I'm almost certain all the power pins are just connected together on the PCB, but hey, if it works, who cares

G

[blue_pinky]

Not sure if I'm missing something about PT's, but doesn't metal, i.e. the aluminum chassis, not act like a sheild against RFID? Or at least reduce it's performance? Don't know if this relates to your electrical issue either, but just a thought.

How directional is the MyLaps/AMB PT's RFID signal?

That might help suggest why a PT on it's side works better than one on the floor of a metal chassis'd car, as on it's side it would be transmitting out of the top of the chassis/sheilding.

When I've designed things with RFID systems in them I've always had to make sure there wasn't anything metallic between the transmitter and receiver...not sure if these PT's behave the same but not sure why they wouldn't be?