I was curious in knowing if LRP's new Sphere ESC for both Brushed & Brushless motors would experience some of the same problems that have plagued many SPEKTRUM users using QC2 ESCs. Here is what both John Adams and Reto Koenig had to say:


John Adams:

"The new programming greatly improves the servo issues however when using an ESC with a weak BEC some servos still need the capacitor. The LRP ESC is the worst when used with the new KO digital servos (especially when running 4 cells). The capacitor fixes the issue. The Airtronics servo hasn't been an issue. I haven't tried the LRP brushless yet but supposedly LRP is improving the BEC circuit on all new controllers."


Reto Koenig (LRP's R&D Manager):

"Well, it's certainly always easier blaming someone else... I think our QC2 works well with all existing radios, not sure why the Spektrum shall be different? Anyway, this is not the issue here and I can confirm that the Sphere doesn't use the same BEC as the QC2 (it's a 3A type in the Sphere).
So, no problems there until someone else blames us."...


Anyone here then know if this "3A type" BEC for the Sphere will work well with the SPEKTRUM System?!? I plan on asking John Adams this to make sure but i thought some here might find this info interesting and/or helpful....

I'm not dissin the Spectrum but there need to be a serious " RECALL", how many of you had to ship them back to be reprogramed?

I had the LRP Q2 and KO servo problem, I had to buy a new servowhen the Nimble come this May and if it plugs and play with no problem I see them overtaking Spectrum, this is my opinion

This is the same experience I had with a brand new unit. Worked fine in the pits and on the bench but once on the track it would go into failsafe. I sent mine in for repair, got it back and have not had any problems since. Your servo is probably bad.

I have had no issue with mine at all and I have five receivers with Hitec and JR servos. I'm also runnin Novak GT7's and GTX's. So this could be why I'm not experiencing any of these issues. You notice most problems have been with LRP ESC's.

Get yourself a pig-tail (wires with a servo plug on the end- most hobby shops should have them) Then remove the white wire, cause it isn't going to be used. Then solder the red wire to the unmarked lead on the cap, and the black wire to the lead maked with a dash or marked as negative.

Then plug it into an open spot on the receiver. it can be either the 3rd channell or the aux spot.

My opinion too We have tested with some of the worst cases known to require the large external capacitor with the Spektrum, and our Raceiver works without any hiccups, no bulky capacitor needed, our Raceiver only needs 2.2v to work, and draws only 15ma. If it isn't tiny enough, now you really have to compare its size to the Spektrum with an added large Cap attached too.

Product now available to order online, on the date it was promised, 100's of Raceivers in stock.

You can have a s many as you can afford to buy.

I thought I had a problem with my Spektrum. I was practicing the other day, all of a sudden, the servo became erratic. It would not respond to the steering. At first I thought it was the receiver module. I replace the reciever and it still do the same, by then I realize the servo went bad and replace it with a brand new digital. I also have been using the Novak power capacitor toghether with Spektrum. It works like a charm.

Henry E.

And now I race at Jackson where the layout is permanently fixed with rounded concrete curbing. I'm in heaven!

Thanks PitCrew. But, I have new information to add...

I emailed Spektrum last night. Their response when I got home was send the system back. Didn't see that until just now!

OK, but...

During the day, I had called Spektrum tech (at Horizon) and was told not to send it back. That I should install a cap on my QC2 and that would handle the issue with the erratic operation of my new KO 2343 servo.

Was advised that adding the cap to the Spektrum receiver only related to the original units made for the M8, not the KO Helios version as I have.

This evening, I installed the cap (Novak 4700uF) on my QC2; but, there was no improvement. The KO 2343 servo that I got yesterday is totally erratic when receiving steering inputs; and, the lights on my Spektrum receiver and transponder go off and one; except for when I move the wheel really slowly.

Now, I am thoroughly confused about what to do...

Hey Bill, dump the QC2 and get a GTX. I have had no problems runnin Spektrum with my Novak ESC's. I have it working with GTX, GT7 and a C2. I know from all I have read about this issue I will never get one of those LRP ESC's while using Spektrum.

Thanks for the response Yeti.

The current problem only exists on my JRX-S car with the KO2343 servo. Therefore, I am not thinking that I can put ALL the blame on the QC2.

Bill

Bill, I've got nearly the same setup... and I think you'll get it working just fine if you put the cap on the spektrum unit.

B

Bob,

OK, that can be tomorrow night's project...because it further tests the situation without costing an arm and a leg...

Bill

Just bypass the ESC for servo power all together, dunno why you guys are so turned off by it.. !??!! Not like diodes are expensive :P hehehe