rudder D/R off, both servos would move 80% of the ATV. With master mix OFF, the primary servo
(channel 4) would move 80% of the ATV setting; the slave servo would move 100% of the ATV setting.
For example, this unique mix type is valuable with a 4-control wing on a funfly or other aerobat. The
outboard surfaces are ailerons. The inboard surfaces are flaps. The mix from ailerons to flaps for full
wing ailerons would be UnMixed. Then the inboard ailerons “the ones in the prop blast” always have
maximum possible throw, even when you’re using low rates on the outboard ailerons to avoid tip
stalling. This could be very helpful when doing 3D manuevers where tip stalling and “wing rocking”
is a problem.
Another example is a giant scale military aircraft which requires full rudder availability at all times
but less tail wheel deflection sometimes. By plugging the tailwheel servo into channel 4, rates are
easily available to the tailwheel. Mix the rudder servo into the tailwheel servo, master mode unmixed,
and no matter if the tailwheel dual rate (D/R) is high or low the rudder still has full deflection
available to it.
What does the “link” option do? Why can it be set separately for master and slave channels?
Link tells the radio to look at the channel link is tagged to, and says, “is there any other mix related to
this servo already?” If link is ON then the radio will also obey this other mix. If the link is OFF then
the radio ignores any other mixes commanding this servo. In MOST cases you will want the link to be
ON because your mix is making two servos operate in unison to do a particular job, but you may not
wish to have this occur in some other cases.
Why set it separately for the master and slave? If you want a pre-programmed mix (such as A-R) to
also respond when a programmable mix commands aileron movement, you must set the link on the
slave (aileron) portion of the programmable mix, since you can not adjust link in the preprogrammed
mixes.
Still not sure whether you want link on or off? Let’s look at 2 examples.
1) Elevator-to-flap (E-F) mix with flaperons (FPN): the flap channel (ch6) already has a mix associated
with it (the flaperon mix). If you did an elevator-to-flap (E-F) mix with link off, only the ch6 servo
would move. With link ON, not only will this mix cause the ch6 servo to move in response to the
elevator-to-flap (E-F) mix, but the aileron servo (ch1) will now also move in response to the elevator
motion because the flaperon mix is also being commanded.
2) Elevator-to-flap (E-F) mix with a rudder-to-elevator mix: when you operate elevator, you want the
flaps to move; however, when you move rudder you want it to compensate with elevator BUT NOT
also move the flaps. So, when you set up the rudder-to-elevator mix, you want link OFF on the
slave (elevator) so that it doesn't command the elevator-to-flap (E-F) mix.
Another example would be a 4-wing-servo aircraft with flaps-to-flaperons mix and elevator-to-flap (E-
F) mix. The flaps-to-flaperons mix is giving you crow behavior when you use the flaps. You'll want
the elevator mix just to call the flaps, not the flaperons as well, because you're trying to do tight loops
but need the wingtips to stay stable, so you don't want the ailerons to respond in that circumstance. In
that case you would leave link OFF on the flaperon side of the flaps-to-flaperon mix so that it did not
automatically also activate the flap-to-elevator (F-E) preprogrammed mix.
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