Spartan / Spektrum

[KnifeEdge]

Probably a stupid question, but in order for the gyro to initialize properly, you have to bind with off center rudder from what i have heard

So if the Rx signal is lost is the heli gonna pirouette?

[Mojogoes]

I'd say a big yes on that one.......or it will adopt the last or safe/default possition or even ballistic and could go in any which direction.

[Tim Procter]

Rudder to the left for normal operation.. Not right.

Quote from Spartans own questions and troubleshooting.

If you use reverse tail (meaning that with left rudder stick the helicopter yaws clockwise) while configuring your Spartan gyro reversing you need to push the stick in the opposite direction that you would do normally. Therefore if the gyro is mounted upright you will need to push the rudder to the right and if mountted invrted to the left. Always check that the gyro responds correctly before taking off.

[KnifeEdge]

would it still pirouette if signal is lost?

[Made2Fade]

Bind with the gain at 20%. Then you can set the gyro gain back to normal after its bound. That way the gyro wont initialise until it actually sees the RX signal first.

Cheers
Lee

[KnifeEdge]

thanks, do you still need to do the full left rudder thing?

[Made2Fade]

as far as im aware it does the same thing so id say no... i havent done it anyways. All it does is by offsetting the rudder then the gyro cant detect the centre signal and so doesnt initialise until the RX does first. When the RX does then it goes straight to the settings programmed into the TX and therefore initialises the gyro because it can then find the centre signal.
Cheers
Lee

[barney]

It depends on the firmware version you have in the Gyro. We are at 1.08 now

Starting from firmware version v1.07 the gyro will not start calibration until the gain is raised above 15% (either AVCS or Rate mode). Spektrum users should bind their radios while the gain is set to a value around 10% preferably in AVCS. This becomes the default gain output when the receiver is powered on which will now prevent the gyro from starting calibration until the link with the transmitter is established. This method of setting low gain is preferred over binding with the rudder stick off center which will become obsolete in future firmware revisions.

hope that helps explain it all for you

cheers Brian

[scallybert]

Bind with the gain at 20%. Then you can set the gyro gain back to normal after its bound. That way the gyro wont initialise until it actually sees the RX signal first.

Am I missing something, but why should the gyro not initlialise just because it's seeing 20% on its gain input ?

[Made2Fade]

Am I missing something, but why should the gyro not initlialise just because it's seeing 20% on its gain input ?

because its written in the firmware and this tells it too... im gathering that 20% gain or below wouldnt ever be used to fly a helicopter with. And if it was there would be something wrong with the setup. Looks like its 10% with the new firmware although i gotta say now that i flashed my gyros with the cable to the latest firmware and mine wouldnt initialise at 20%??? Cant remember where i seen this, will have a look and post. Anyways it sure worked and i was always skepticle about binding with a rudder command.
Cheers
Lee

[Made2Fade]

was the spartan website i seen this and this is what it says:-

Difficulties entering setup mode when using Spektrum and 2.4GHz JR radios.

These receivers produce servo signals at power on and before the link with the transmitter is established. This initiates the gyro calibration process which is sometimes completed before the link is established. At this point it is no longer possible to enter the setup modes as this must be done during the calibration period.

Starting from firmware version v1.02 the gyro will not start calibration until the rudder stick is seen at the centre. Spektrum users should bind their radios while holding the rudder stick off centre. This becomes the default rudder output when the receiver is powered on which will now prevent the gyro from starting calibration until the link with the transmitter is established.

Starting from firmware version v1.07 the gyro will not start calibration until the gain is raised above 15% (either AVCS or Rate mode). Spektrum users should bind their radios while the gain is set to a value around 10% preferably in AVCS. This becomes the default gain output when the receiver is powered on which will now prevent the gyro from starting calibration until the link with the transmitter is established. This method of setting low gain is preferred over binding with the rudder stick off center which will become obsolete in future firmware revisions.

Hope that helps clear a few things up.
Cheers
Lee

[Made2Fade]

Barney any reason why all 3 of my gyros initialise all the time with 20% gain then?
Cheers
Lee

[colin n]

Its all Bolox

Mine just worked without any of that faffing about !!

all i can think of is the old Rx's used to take that long to boot up that the gyro was allready timed out of its flicky flicky thing by the time u got control of it.

so maybe if u have an old specky rx then its not "bollox". but certainly with the new ones just crack on.

[colin n]

Just read all that.

I think if i had that problem then i would bind the rx with full rudder.

Then set up the gyro

Then re-bind with the stick central.

just for the sake of the fail safe.

[Made2Fade]

Ive found even the new RX's with quick connect can do it once in a while so this is a safe bet IMO.
Cheers
Lee