9C Link Issue -> Bug
 

I have a 33% Cap with Rudder (Ch4) is mixed to Aux1 (Ch7) so that I can have two servos in the tail of my plane. While modifying and checking some mixes, I found that when you mix throttle to rudder, the link fucntion is not available. It seems to be available to all throttle master types other than when the rudder is the slave. Is there a fix to this bug? I had to use two mixes throttle to rudder and throttle to Aux1. Link would make this easier.

RE: 9C Link Issue -> Bug
 

We checked our 9C. We didn't find this difficulty. Pmix 6 and 7, have no TRIM function, but all mixes have the LINK function. This is with the transmitter set in ACRO mode.

We mixed Rudder to Aux 1, and then made a mix with Throttle to Rudder. We used Pmix1 and Pmix2, turned trim ON both and Link on the rudder to Aux1 mix. Rudder operated both channels, and when we moved throttle, both channels moved. The rudder trim moved both rudder channels, and the throttle trim moved the throttle and both rudder channels.

RE: 9C Link Issue -> Bug
 

Interesting
If you could, do it in this order.
PM5 Mix Rudder to Aux1, Link and Trim ON
then
PM4 Mix Throttle to Rudder, there is a Trim option but not a link option.
I would hate to reset my memory and then do it in the order you did to get it to work.

RE: 9C Link Issue -> Bug
 

We did Pmix4 first, then Pmix5 second and had all features on both mixes. We used the same channel assignments, but we also started after we cleared the memory because we'd been messing with the other mixes earlier for another customer. We usually try out our solutions on a 'clean' model memory.

The LINK or TRIM options will turn on or off, depending upon the master channel and what other mixes are set up first. If you set your mixes up the same way, but just do 4 first and 5 second, it should work. You'll still probably have to do a reset of that model, though, to get them at the defaults so that prior programming doesn't confuse the issue.

RE: 9C Link Issue -> Bug
 

I guess I will have to do that in May.
I have three contests next month and can't afford to be playing with this thing.
I guess what bothers me is that I have to create my mixes from PM1 to PM7 and in that order.
It really should not matter which order they are in.
Did this get fixed with the 9C super?

RE: 9C Link Issue -> Bug
 

The processor has to 'scan' the mixes in some order for best efficiency. This would be so in any transmitter. Usually, though, it's not a problem because linked channels are usually grouped closely together. Most mixer setup would have the more important mixes first and the lesser ones next...at least that was the thinking.

The 9C Super only has new presets.

RE: 9C Link Issue -> Bug
 

That honestly sounds like a bug, reset the memory for a mix to
work?

I have just run into the same issue as the original poster.
I have in pmix 2 rudder and aux2 mixed and linked for a
2 servo push pull rudder setup.

I want a throttle to rudder mix for downlines on a 35% Extra.

Pmix 3 is set up as Master -throttle, Slave -rudder, the link option
goes blank. and only one servo will move. It does not work properly.

I had do the same thing the original poster did.... add Pmix 4
Master -throttle, Slave -aux 2 and set it up identical to pmix 3 to
get the proper rudder mix.

RE: 9C Link Issue -> Bug
 

It's not a bug. The processor has to process one mixer "first", and then the next, and so on. If you want a priority mix, it must be higher in the list than the secondary mix. Mixes are processed serially, so you can't have a later mix operate an earlier one.

You can't get away from the order in which things get processed.

You don't have to reset memory to set up mixes. We mentioned that we did it so that we'd have a 'clean slate' to work with, which made programming easier for us in the example.

RE: 9C Link Issue -> Bug
 

Bill,
I was the person who initiated this post a while back and what I have found is that it does depend on the order in which the mixes are added. To trim my aerobatic plane, these are the major mixes that I use.

Ailevator
Flaperons
Rudder -> Elevator
Rudder -> Aileron
Throttlle -> Rudder
Throttle -> Elevator
With these mixes, I can force my plane to fly straight in almost all maneuvers.
The problem is that if you put the first pmix as a point mix then you loose some linking ability.
If you add another mix as Rudder -> Aux1 the Aux1 does not move with the throttle -> rudder mix.
If you change the order in which it is installed, you can loose your Ailevator Mix.
I need the above listed mixes. That is not an option. I have tried installing these mixes in various orders and haven't found an order that would allow me to add the Rudder -> Aux1 mix without it either not working or affecting one of the other mixes.
This is my real world application. I will say that other MFG radios will do this, but I like Futaba and how it programs. I will not change because I can use a Matchbox to work around this problem. I am pretty sure that the 14MZ will not have this problem but I don't have access to one to test it and I can't afford this high end piece of equipment.
Thank you for listening.

RE: 9C Link Issue -> Bug
 

Then please tell me how to make it work without
clearing the memory and starting over.

Here is my list of mix's.

mix 1 - elevator to gear for dual elevator servo's

mix 2 - rudder to aux2 for dual rudder servo's
link and trim are both on.

mix 3 - throttle to rudder or a low throttle rudder
corection link, tried both off and on, does not work
both servo's

mix 4 - inh - will use it for aux2 to as a work around
if needed

mix 5 - inh

mix 6 - rudder to aileron

mix 7 - rudder to elevator

That is it, that looks like the proper order to me.
any ideas?

RE: 9C Link Issue -> Bug
 

Are you guys going to help or just ignore it?

RE: 9C Link Issue -> Bug
 

You'll have to put the throttle->rudder mix before the rudder->aux mix (for dual rudder servos) to get the throttle->rudder mix to link properly to both servos. That works. If you put the throttle->rudder mix on a switch, then you can turn it off when you want.

RE: 9C Link Issue -> Bug
 

Thank you I will try it tonight.

I use a throttle down switch for landing and place
the mix on that switch so it is off at throttle down.

RE: 9C Link Issue -> Bug
 

I finaly had a chance to try out your suggestion. Unfortunatly
it did not work. This is what I did.

mix 1 - elevator to gear for dual elevator servo's

mix 2 - throttle to rudder

mix 3 - rudder to aux2 for dual rudder servo's
link and trim are both on.

mix 4 - inh

mix 5 - inh

mix 6 - rudder to aileron

mix 7 - rudder to elevator

Any other ideas ?

RE: 9C Link Issue -> Bug
 

I don't know what the difficulty may be. I set up my 9C transmitter just as you mentioned, and all the mixes worked properly.

I used prog. mixes #1, 2, 3, 6, & 7, just as you did. They all work. What is not working when you turn on the mixes? Are any still on "INH"? Did you forget to turn link and trim on where appropriate? For the throttle->aileron and throttle->elevator mixes, did you set percentages on the graph?

RE: 9C Link Issue -> Bug
 

I have no idea why it won't work. link is on, mix is on.

The only mis that is not working is the throttle to rudder.
Only one of the two rudder servo's will operate in this mix.

The rudder servo's both works fine all other times.

I don't have throttle to aileron, I have rudder to aileron
for roll coupling and rudder to elevator for pitch coupling.
I use the point mix's with the graph for this.

I am only looking for throttle to rudder so when the plane is
in a down line on low throttle I can get 1 or 2 degree right
rudder.

RE: 9C Link Issue -> Bug
 

Bill,
I just got the chance to test mine and I have to agree with Advent.
This is what I did for my test.
I selected either PMIX 2 or 4 to be on, Never both on.
In both cases, the throttle to rudder mix didn't work (PMIX 3)
I put the 100% deflection on PMIX 1 and tested it as well and it didn't work on the AUX channel.
The only time the AUX 1 channel servo moved is with rudder stick movement.
AUX CH Select is null for all channels except for Channel 9 SW-G Norm
In both rudder mix cases PMIX 2 or PMIX 4 enabled, the ailevator function worked.
I didn't have the wings on so didn't test the flaperon function.
I am using a 9C's serial number 041004818.
Back from service on 9/8/2006
The program was in the TX, I should have asked if you could test it while you had it but I forgot.
I am not sure what else I could do to get it to work other than making PMIX 4 the same as PMIX 3 but make the slave channel the AUX1 servo.
Thanks

PMX 1
Mix off
Mas Ofst
Slv 4:rudd
Sw:C
POSI Center
Rate -100%

PMX2
Mix INH
Mas 4:Rudd
SLV 7:aux1
Link on
Trim on
SW C
POSI Null
Rate +100% +100%
Ofset 0%

PMIX 3
Mix ON
MAS 3:thro
SLV 4:Rudd
Trim off
SW G
POSI Null
Rate +100% +100%
Ofset 50%

PMIX 4
MIX on
MAS 4:rudd
SLV AUX1
Link on
Trim on
SW H
POSI Null
Rate +100% +100%
Offset 0%

PMIX 5
MIX on
Mas Rudd
SLV ail
Link on
Trim off
SW H
POSI Null
Rate -6% -4%
Offset 0%

PMIX 6
Mix on
Mas thro
SLV Elev
Link on
SW H
POsi Null
POS1 0%
POS2 0%
POS3 0%
POS4 0%
POS5 +2%

PMIX 7
Mix on
Mas rudd
SLV Elev
Link on
SW H
POsi Null
POS1 -14%
POS2 -6%
POS3 0%
POS4 -7%
POS5 -14%

RE: 9C Link Issue -> Bug
 

OK, somewhere, we're doing something different. Here's the setup I have in my 9C (not super) transmitter:

Channels 1 & 6 are ailerons
Channels 2 & 5 are elevators
Channel 3 is throttle
Channels 4 & 8 are rudder

Flaperon mix is turned on to power the two aileron servos.

Pmix1: For 2 elevator servos
ON
Elev Master
Gear Slave
Link Off Trim On
Switch Null

Pmix2: Throttle to Rudder Mix
ON
Throt Master
Rudd slave
Trim ON
Switch Null

Pmix 3: For two Rudder servos
ON
Rudd Master
Aux2 Slave
Link ON
Trim ON
Switch Null

Pmix6: For Rudder -> Aileron mixing, switch activated
ON w/switch
Rudd Master
Aleron Slave
Link ON
Switch F DOWN

Pmix 7: For Rudder -> Elevator mixing, switch activated
ON w/switch
Rudder Master
Elevator Slave
Link ON
Switch F DOWN

Everything works. Now, if I've misinterpreted what we're trying to do, then I'll accept that. When I have switch F in the 'off' position, I have channels 2 & 5 working on elevators, 1 & 6 operating ailerons, 4 & 8 operating rudder. Throttle always influences rudder (not on a switch, but can be) and both rudder servos move.

When I flip switch F, moving the rudder stick moves both elevator servos, both aileron servos, and both rudder servos.

Have I missed anything?

Thanks.

RE: 9C Link Issue -> Bug
 

Bill,
I see two fundimental differences.
First, you are not using the ailevator function for the dual elevator servos (Why Link OFF?)
Second, Throttle to rudder mix, you have Trim on.
Do you agree, that those are the two differences?
I will copy my memory to another slot and see if I can make these modifications and see what happens.
If you could do two things for me.
Move CH5 to CH8 (CH 2&8 on elevator)
Move CH 8 to CH7 (CH 4&7 on rudder)
This would prevent me from rewiring my plane.
Thanks

RE: 9C Link Issue -> Bug
 

Hmmm...I see. I was using user "advent's" setup. He couldn't get it to work. That's why I didn't use the ailevator function. I set up to work the way he did.

I re-did it with the setup you suggested, and it worked.

Many times, using the pre-loaded mixers prevents the interaction of additional mixers. They don't really do a good job of linking downline.