View Full Version : Using the gear switch as the gyro switch
Swashmix
04-02-2009, 10:40 PM
I have the x9303 (heli) and want to program the gear switch to act as my gyro switch for selecting between rate and heading hold.
How do I do this?
widower
04-03-2009, 06:13 AM
You set the end points for the gear channel. The low endpoint is switch off and the high endpoint is switch on.
Swashmix
04-03-2009, 10:06 AM
You set the end points for the gear channel. The low endpoint is switch off and the high endpoint is switch on.
Thanks!
To do this I will have to use one of the program mixes and use the "slave function" with one of the other switches. Only had the X9303 for a week and justing learning the capabilities.
spike5150
04-03-2009, 01:05 PM
Thanks!
To do this I will have to use one of the program mixes and use the "slave function" with one of the other switches. Only had the X9303 for a week and justing learning the capabilities.
Uh what?. You don't need a mix. Go into the Device Select menu and set gear channel to gear switch. Then you set your gain using the travel adjust menu for the gear channel. It is really simple.
Swashmix
04-03-2009, 01:11 PM
Uh what?. You don't need a mix. Go into the Device Select menu and set gear channel to gear switch. Then you set your gain using the travel adjust menu for the gear channel. It is really simple.
Thanks! I knew there had to be an easier way. Better bury myself in the instruction manual a little longer! I will probably find some other cool stuff also.
10inja
04-06-2009, 10:26 AM
can someone explain this to me.. we're using the gear because we need a switch and there's no gyro switch?
then we plug the gyro to the gear input of the Rx?
Bob O
04-06-2009, 01:16 PM
can someone explain this to me.. we're using the gear because we need a switch and there's no gyro switch?
then we plug the gyro to the gear input of the Rx?
With my 6-channel receiver and DX-7, I can control the Gyro from two separate switches or have it done automatically by flight mode. If I was using a 7-channel receiver, I could put the gyro signal wire in the Aux2 channel and I'd have a third switch I could use.
The main reason we are using the gear channel to control gyro rate selection is because that is the only vacant channel on a 6-channel receiver after you plug all the servos and ESC leads in.
Did that answer your question somewhat?
spike5150
04-06-2009, 05:56 PM
can someone explain this to me.. we're using the gear because we need a switch and there's no gyro switch?
then we plug the gyro to the gear input of the Rx?
With the X9303 and a 6CH Rx you cannot use the gyro sense menu. You cannot program the gyro sense menu to the Gear Channel. There is no AUX2 channel on a 6CH Rx.
On the DX7 you can program gyro sense to Gear Channel or AUX2 Channel.
On the X9303, you can use the GOV function on the Gear Channel and have Gain settings (via the gov menu, which outputs the same values as endpoints) tied to the flight mode switch. No mixes involved.
Keep in mind the GYRO SENSE "Gain" is not the same as ENDPOINT "Gain" and both are different that TRUE "Gain" on JR/SPektrum Radios. Go watch "Gain 101" video from Bob. that shows the conversion equation and how radio settings translate into what is output to the gyro.
10inja
04-06-2009, 11:18 PM
thanks to both of you..
I did see bob's 101 and saw the true = endpoint / 1.44 equestion
I'm dumb enough to still be a bit confused..
so.. at least on my r921, we plug the gyro to the rudder rx input and that tells the servo to go left or right
then we still need to tell the gyro how sensetive to be? why can't be this be a setting on the gyro itself rather than use another channel (like a nob on the gyro or something)..
I guess I need to read up more on gain as I'm not sure what it is.. I thought it was to tell the gyro how sensetive to movement it should be to fine tune it.. no?
spike5150
04-10-2009, 11:42 AM
One gyro lead plugs into the RUDD channel, then Rudder servo plugs into the Gyro. When you move the rudder stick, the gyro is overridden.
Then the gyro gain lead plugs into another channel (Gear on 6CH Rx or Aux2 on 7Ch, etc). This allows you to control the gryo gain from your radio, and to have different settings for different headspeeds/flight modes (idle up1, 2, etc.)
Having a "knob" on the gryo is the old way of doing it. With a knob you would only get one gain setting regardless of flight mode.
The gain setting is telling the gyro how sensitive to be to external yaw inputs (wind moving your heli when you have not moved the rudder, for example). The value for this is unique to every setup out there.
Pinecone
04-10-2009, 02:14 PM
Just a slight correction, when you move the rudder stick the gyro is not over ridden, you just tell the gyro what you want the tail to do (when in Heading Hold) and it then tries to make that happen.
10inja
04-10-2009, 06:11 PM
cool thing, thanks guys..
At first, I was like: if the heading hold Gyro's job is to keep the tail straight, then why do we need to set the sensetivity, it should do it's job and keep the tail straight, no matter what setup or heli it's been used in.. I guess God didn't make us all perfect.
thanks though