Glitches and more glitches

[reden]

I get glitches on the steering servo.
The following is installed.
4Pl TX, R2104GF RX, FXR esc(cap installed), two 35T HH Torque Masters(no caps), Rocker dig, CC BEC and Savox SA-1283SG servo all running of a 3S LIPO Turigy Nano-Tech 1.3Ah(25C to 50C discharge).
The RX is fed from the speed control and the bec only feeds the steering servo. The ESC in stuck onto the flat piece of the dig next to the relays.
On low throtle the srvo does not glitch.
Mid throttle glitcehs but full throttle no glitches.
Happens in foreward and reverse.
Now the Ricker dig does not drive the rear motor but the clicking noise can still be heard. At first it could be resolved by hitting reverse but later nothing happened.
This might not be due to the glitches.

Would it be helpfull to run the RX from the BEC too but branch the servo off before the rx so the power does not go through the reciever?
The red from ESC would be disconnected.
I'm also going to install two FXR's so this might be usefull.
Has any one experienced this?

[Charlie-III]

1-Excellent 1st post for your issue, you pretty much spell it all out.
2-I would leave it basically set-up the way you have it, ESC BEC powering the RX & external CC BEC powering the servo.

Do you have the black & red from the BEC going to the servo? That is what we do with our Futaba set-ups.
You "may" want to try tieing the servo black to the RX black and see if it helps, I know some radios seem happier.

[reden]

BEC black & red goes to the servo.
I'll try the binding of black but the fututre servo (HD brand) can run up to 8.5V.
What then?

[2500hdon37s]

try a diffrent servo, there has been a few problems with those servos causing glitching.

[reden]

I'll try that too.
HD8325HV servo.
This HD servo gave the same problem on different setup.
The only constant was the BEC and the CAP on the ESC(Tekin R1 Pro) and the owner.

Seems I'm the glitch king cause I got glitches on my F3J glider(s) where no one else got any.

[reden]

Something in the system is generating noise at the particular throttle setting.
with the rear dig not working and switched to rear only the promblem stays.
No motor turns thus arching can be eliminated.
BTW, I checked and saw no arching even under full throttle-no load on both motors.
(the rear was still working at the time)

On bigger gliders some pilots use ferite rings in the wing wiring to eliminate noise.
Quite a lot of UBEC's comes standard with a ferite ring.

[Charlie-III]

On long wire runs, a ferrite may help since the servo wiring acts like an antenna. The ferrites help quench the signal.

Volts have little effect on "signal noise", amps of load has a bigger effect.

Ferrites & grounding help solve most issues on a 2.4ghz radio system.
BEC's can solve voltage drops if used correctly.

[pitcher2103]

I vote try another servo and if it doesn't help try another radio on that servo if you have one. I have had a servo do that to me whn it went bad. Could be the receiver as well

[reden]

Tried the HD servo.
Still the same problem but glitches seems to be less.
Will try the common black.
Just to make sure.
At the BEC, which side should be connected to the black RX?
Servo side(out going) of BEC or Battery side (in) of BEC?

[reden]

Originally Posted by pitcher2103

I vote try another servo and if it doesn't help try another radio on that servo if you have one. I have had a servo do that to me whn it went bad. Could be the receiver as well

See reply number 5.
The only servo that did not glitch on the old setup was a cheap HD servo with E-Fly 2.4 radio simmilar to the GT3B radio.

[SMR 510RR]

The output side of the bec.

[reden]

Originally Posted by SMR 510RR

The output side of the bec.

Thanks, just want to make sure the smoke does not leak out of the wires.
For once the smoke leaks, electrical things do not work any more.

[killswitch]

I was in the LHS today and they were trying to diagnos a glitch in a savage fluxx with a 4pl and savox servo... The only thing that got rid of it was when I suggested using a CC BEC to bypass the esc's BEC and making sure the receiver was the common ground. I've never seen anything like it before.

EDIT: Just thought about when I got my first savox servo and it caused glitching on my scaler till I used a y harness to make sure the ground from the BEC went to the receiver as well. I'm not using a futaba radio though... KO for me.

[reden]

If the common ground does not work I'll try The BEC powering the RX and servo.

[reden]

Took two short servo extensions. Soldered the ground wires together and...
No glitches.
Thanks Charlie-III for your help.

One question though.
Will this work if the servo is 8.5V and the RX at 6V?

Also tested the HD servo at 6V. All works fine.

[Charlie-III]

Originally Posted by reden

Took two short servo extensions. Soldered the ground wires together and...
No glitches.
Thanks Charlie-III for your help.

One question though.
Will this work if the servo is 8.5V and the RX at 6V?

Also tested the HD servo at 6V. All works fine.

No problem, glad it worked out. I have not had the glitch issue, but have read the fix a few times before (mostly with Spektrum radios).

You should be fine with the 2 different voltages sharing a common ground.

[reden]

Originally Posted by Charlie-III

No problem, glad it worked out. I have not had the glitch issue, but have read the fix a few times before (mostly with Spektrum radios).

You should be fine with the 2 different voltages sharing a common ground.

Thanks.
BTW, aint it sleeping time in the states?

[Charlie-III]

Originally Posted by reden

Thanks.
BTW, ain't it sleeping time in the states?

Yes it is, worked on a site all day, now I'm getting caught up on everything else that needs to be done (I'm on a business trip, thus not at home.)
Should be mid morning for you......

[reden]

It was 6:30 AM.
I start to work early. and get hame at 6:30 PM.
It was the frantic bash on the keyboard before the work starts.
All internet time at work get recored so no play during office hours.