Spektrum Interference - Help

[dayxwalker]

Hope you guys can help I am having no end of problems with interference for the last month or more. I thought it was down to my Acoms 2.4 set and maybe some of it was. I have since bought a Spektrum DX3S 2.4 Ghz in the hope that it will solve my woe's. As you are probably already guest I still have interference. Below is my full spec and some pictures of my layout

B44
Spektrum DX3S
SR3300T Spektrum Receiver
JR Digital Z9000S Servo
Novak GTB (Not sure if it is Spread Spektrum Optimized)
Intellect Lipo's
Nosram Storm 4 Star

I have a Xcelorin 4.5T combo but it is away getting fixed so I cannot try this to rule out the GTB

Anyone got any ideas on what it can be ? Why did novak introduce a spread spektrum GTB was it for interference issues ?

How can I tell if my GTB is spektrum optimized

[Wraggy]

i think sometimes people have to run a power cap from the receiver ? i might be wrong and im sure someone will correct me if i am

[dayxwalker]

Thanks Someone mentioned this at the club but they were not sure. Are you saying if the GTB is not Spektrum optimized then I need a cap ?

Can anyone elaborate ?

[c0sie]

I run a NON-Spektrum optimizef GTB, and have done for over a year and have never had interference.....

What servo are you running? Ive heard of people having p[roblems with some servos that draw too much current under load/have too high a torque rating..

[colin563]

are the lipos new have you tried another set of lipos

i had similar problems with a faulty battery pack


colin

[JJ The Boat Wizzard]

Hi all

The power cap on the reciver helps with HIGH Amp Draws from servo (as when you nail it with a good servo the BEC in the spedo cannot cope with all the amps and there for the volts drop and your reciver goes into failsafe , what a cap dose is it stores a little bit of power for when your voltage drops , and when it dose it compensates until your esc gives the full power back , dont know if explained it clearly enough its hard to explain , try a powercap , wheres your arial i know carbon fiber can sometimes interfear , even with 2.4 i put my arial up a straw or i get interferance.

John

[dayxwalker]

The servo is a JR Z9000s its a 10th scale super fast one

JR's fastest racing servo ever uses a specially designed anti-distortion case and tight metal gear train to give racers the perfect blend of lightning quick responsiveness and amazing torque.
Specifications:
Type: Ultra High Speed
Torque: 128 oz/in @ 6V
Speed: .06/60 degrees @ 6V
Dimensions: 0.83x1.59x1.50 in
Weight: 2.2 oz
Gears: Metal Gears

The cells are brand new I have two packs the same and the problem is the same with both but I will tray a set from another racer next week

So what is the point in the spread spektrum GTB ?

[c0sie]

The spektrum GTB has something faster in it.....some FET related thing I think?

Do you have another servo you could try? Id put 50p on it that your servo might be at fault...

[dayxwalker]

Originally Posted by JJ The Boat Wizzard

Hi all

The power cap on the reciver helps with HIGH Amp Draws from servo (as when you nail it with a good servo the BEC in the spedo cannot cope with all the amps and there for the volts drop and your reciver goes into failsafe , what a cap dose is it stores a little bit of power for when your voltage drops , and when it dose it compensates until your esc gives the full power back , dont know if explained it clearly enough its hard to explain , try a powercap , wheres your arial i know carbon fiber can sometimes interfear , even with 2.4 i put my arial up a straw or i get interferance.

John

Thanks John
See my pics for the layout and arial location etc .... Pictures speak better than words lol This cap sounds like a good place to start and cheap i suspect ! bit skint after £175 DX3S ! Were can I get one ?

[dayxwalker]

Originally Posted by c0sie

The spektrum GTB has something faster in it.....some FET related thing I think?

Do you have another servo you could try? Id put 50p on it that your servo might be at fault...

So your confident on the servo being the culprit lol

I do have another servo but I like this servo its super fast 0.06 ! The other one is a hitec which is 0.1

But if thats it then its got to go !

Would prefere the cap option if it meant i could keep it ?

I have Telemetry temp sensor on the motor maybe that is drawing a bit if current ?

[Northy]

Tim, are you at Teesside this weekend? If you are come and see me.

G

[dayxwalker]

I am not racing but I did fancy a pop up ! will come and see you and bring the car

Thanks

[Northy]

Does it still glitch when not being driven?

G

[dayxwalker]

Originally Posted by Northy

Does it still glitch when not being driven?

G

It glitches only when driven and its not major its a mix of a sudden pulse of power and sometimes a full on out of control but alway just for a 1-2 seconds max. I can sometimes get 2-3 laps in ok then it glitches

[Wraggy]

still sounds like the power cap will solve that

[Northy]

Tim, bring it ready to run round the track then, we'll have a go before finals or after maybe, see if we can fix it

G

[Northy]

I'm with Wraggy too, good chance a power cap will fix it. I run one in EVERY car now.

G

[JJ The Boat Wizzard]

If it's not solved by a power cap , im sure northy will be able to sort it out (laughs nervously)

[dayxwalker]

I will bring it up ! Thanks !

[bald eagle]

Any chance this could be motor related?.. Just a thought..?Have you tried a different motor?