GRAUPNER mc-16 Programming Manual page 204

when set up to switch "in sequence".
Including phase trim
If you wish to apply the FLAP channel ("6") or FLAP2
channel ("9") trim values stored in the »Phase trim«
menu – flight phase dependent – then first tap the centre
SET key of the right four-way button and use its selec-
tion keys to select "P":
M1 P 6 11
??
M2 ??
M3 ?? ??
M4 ?? ??
M5 ??
??
ty fr to
Depending on the mixer value configured, a mixer can,
as shown in the example above, route the signal from
a flap control present (e. g.) on input 6 to control chan-
nel 11, while also applying the FLAP trim value set on
the »Phase trim« menu, page 156, for the respective
flight phase.
Other special features of free mixers
Mixer input = mixer output
If you set up a mixer whose input is the same as its
output, e. g. "C1  C1", you can achieve some very
special effects in conjunction with the option of switch-
ing a free mixer on and off in any way you like. A typical
application of this can be found at the end of this sec-
tion, as Example 2 on page 210.
Tip:
If you separate a control function – for exam-
ple ,"9" – in the »Mix-only channel« menu,
see page 212, then the servo's response is
determined exclusively by the mixer input of a mixer
programmed from "9  9". This menu is available as
standard on the mc-20 HoTT transmitter only.
204 Program description - Free mixers
Thus, with linear mixers M1 ... 8 or curve mixers C9
... 12, 6-point control curves can be defined for any
transmitter control in a manner analogous to that
described in the »Channel 1 curve« menu and these
can also be used in flight phase switching if needed.
This method of "linking" is not only also switchable
but can even be subject to a delay by assigning an
appropriate delay in the "– time +" column of the
»Control adjust« menu. Details, can be found in
Programming example for "Controlling timed se-
quences" on page 310.
Mixer output affecting default software coupling
of aileron, camber-changing flap or collective
pitch servos
Before we start specifying the mixer ratio, we must
first give some thought to what happens if we permit a
mixer to affect the default software coupling of aileron,
camber-changing flap or collective pitch servos:
• Fixed-wing models:
Depending on the number of wing servos available
on the "Aile/flaps" line of the »Model type« menu,
control channels 2 and 5 are connected via spe-
cial mixers for the "aileron" function, 6 and 7 for the
"flap" function, outputs 9 and 10 (if present) for the
FLAP2 servos and 11 and 12 for AILE2 servos.
If mixer outputs are programmed to affect these
kinds of couplings, then their effect on the respec-
tive flap pair derived from the "receiving" control
channel must be accounted for:
* N.N. = Nomen Nominandum (that indicates the named name)
Mixer Effect
servo pair 2 + 5 responds with an
N.N.*  2
aileron function
servo pair 2 + 5 responds with a
N.N.*  5
flap function
servo pair 6 + 7 responds with a
N.N.*  6
flap function
servo pair 6 + 7 responds with an
N.N.*  7
aileron function
N.N.*  9 servo pair 9 + 10 responds with a
flap function
N.N.*  10 servo pair 9 + 10 responds with an
aileron function
N.N.*  11 servo pair 11 + 12 responds with a
flap function
servo pair 11 + 12 responds with
N.N.*  12
an aileron function
• Model helicopters:
With helicopter mixers, collective pitch control may
be provided by up to 4 servos connected to receiv-
er outputs 1, 2, 3 and 5, depending on helicopter
type. The software links these together to control
collective pitch, roll and pitch-axis.
Other than within the »Helicopter mixers« menu, it
is not advisable to mix a free mixer into these chan-
nels because this can lead to very complex interac-
tions. One of the few exceptions is "Collective pitch
trim using a separate transmitter control" – see ex-
ample 3 on page 210.
Important notices:
• With serial links in particular, remem-
ber that the travels of the individual
mixers are cumulative if multiple stick
commands are made simultaneously: there is
a risk that the servo(s) may strike a mechani-
cal end-stop. If necessary, reduce "servo trav-