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HelicopterRadio - JR DMSS › 9303 to 9303 buddy box weird problem,
09-02-2009 01:54 AM  8 years agoPost 1
wingtip

rrApprentice

Indiana

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ok im trying to buddy box a newcomer to the hobby and he has two 9303's. One is a original 2.4ghz, one is a converted 72 to 2.4ghz.

we can bind either tx to the model and will work independantly but when you connect the two with e trainer cord the master radio (whichever radio is binded to the model) will have full and complete control with no issues... however, the slave radio has pitch problems.

in normal mode on the slave radio the pitch works fine... but when flipped to idle 1 or 2 the pitch jumps up and will not go negative at all...
both identical copied program and if you switch the master with the slave and rebind the master the same issue exists now on opposite radios...
in the monitor screen you can see the pitch moving like it should yet the swash will jump positive pitch and will not come down when the stick is brought down, unless you flip back to normal mode.

what the hell is going on... each radio when used by itself with no trainer cord will work in all modes..

but with the cord plugged in, no matter which one is master (and working) the slave has problems in idle 1,2 with the pitch...

in the trainer screen the slave has access to all axis too...

anyone seen this before or know what the hell is up?

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09-02-2009 02:45 AM  8 years agoPost 2
Rick_H

rrKey Veteran

Boulder City, Nevada

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Make sure The Buddy box is powered off. Only the Master should have the power switch turned on.

Rick

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09-02-2009 04:08 AM  8 years agoPost 3
rocket_33

rrElite Veteran

Mount Pleasant, Michigan USA

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Interesting I have a friend with the similar incompabilities with the 9303. Has a 9303 on 2.4 as master and 9303 on 72 he wants to use as a slave. He turns on the master and the heli and it works. as soon as he attempts to plug in the cable the light on the receive goes out and there is no control (before even plugging in the slave and w/o hitting the trainer switch).

I would be interested in any idea here

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09-02-2009 11:09 AM  8 years agoPost 4
wingtip

rrApprentice

Indiana

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the buddy box is powered off.....

they are both on 2.4, just one of them was a 72 converted to 2.4.. but as i said, no matter which one you make the master, the master will work, but the slave wont... its totally screwed up software issues... unplug them and either radio will fly it with no problems at all, only when they are plugged via the cord does the slave screw up...

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09-03-2009 12:05 AM  8 years agoPost 5
bradcfi

rrNovice

Houston, TX

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Slave

Are you setting up the slave 9303 in the Trainer menu. SB "slave".

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09-03-2009 12:29 AM  8 years agoPost 6
wingtip

rrApprentice

Indiana

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everything in the trainer screen is as it should be, the slave radio has full control... like i said, in normal mode it has full pitch but soon as you flip to idle 1 or 2 the pitch jumps up and wont come down past half stick... unplug the cord, then that radio works in all flight modes... swap radios master to slave and slave to master and the same problem exists....

its totally bs....

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09-03-2009 03:47 AM  8 years agoPost 7
rocket_33

rrElite Veteran

Mount Pleasant, Michigan USA

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Not to hijack the thread but found out in the case of my friend's radio, 9303 on 2.4 as master; when you plug the trainer cord into the radio it shuts off the RF portion of the radio. We noticed the LED on the back of the radio would go out as soon as the cable was plugged in. Tried plugging it in with the radio off and then powering up as well as powering the radio up first then plugging it in. So I am thinking the radio needs to go back to Horizon.

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09-07-2009 12:36 AM  8 years agoPost 8
helitroll

rrVeteran

Southlake, TX

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9303 trainer

Before you send it in, try a few things. The Slave or buddy box should be off before it is plugged in. The plug will turn it on. The master transmitter should be turned on like for normal flight. The Stunt/flight modes switch is run from the master. The only thing on the slave that works is the gimbals. The student should tell the instructor when he wants the switch flipped. That allows the instructor to control idle ups and throttle hold so something does not get flipped accidentally. We have used this without difficulty before on helis as well as a 12X to 9303. Mark

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09-07-2009 12:56 AM  8 years agoPost 9
aviation

rrVeteran

Quebec Canada

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9303 to 9303

That is totally correct, plug in the buddy box cord before the master transmitter is turned on. Also I set the trims and all of the throttle and pitch curves the exact same, Check out the sub trims and make sure that they are all the same. Then open the master switch and if you want remove the module from the slave trasmitter as it is of no value, you are bypassing the switch when you plug in the cord.

After everything is the same then flip the switch to transfer the control on the four controls only. Make sure that the slave is set as the slave in the trainer mode.

aviation

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09-07-2009 01:04 AM  8 years agoPost 10
playfair

rrKey Veteran

Rochester, NY

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Make sure the model in the slave Tx is set to PPM modulation.
Also, if you are flying an eCCPM heli (like a T-Rex) you may need to use single servo swash setting.


The sky is our canvas

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09-07-2009 04:35 AM  8 years agoPost 11
helitroll

rrVeteran

Southlake, TX

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my error

playfair is correct. For the slave, I would go to a new model and reset. Do not program the radio except to set up slave and PPM modulation. The 2.4 does not need to be changed if it is the slave. Don't forget to inhibit the hover trims on the 72MHz xmtr. Some of the older XMTRs have this enabled.

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09-21-2009 03:25 AM  8 years agoPost 12
helitroll

rrVeteran

Southlake, TX

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did it work?

Did you get it to work?

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09-21-2009 11:49 AM  8 years agoPost 13
wingtip

rrApprentice

Indiana

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its working now but dont ask my why.... cause i have no clue.... but i was able to buddy box the guy and save his bacon a few times while he was trying to learn inverted...

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HelicopterRadio - JR DMSS › 9303 to 9303 buddy box weird problem,
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