GRAUPNER HoTT MC-16 Series Programming Manual Download

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188 Program description - Helicopter mixer

Helicopter mixer

Flight phase-specific setting of collective pitch, throttle and tail rotor

This option is available as standard on
both transmitter types.

In this menu »Helicopter mixer« all of
the flight phase-specific helicopter mixers

are described, with the exception of the mixers for
auto-rotation flight (discussed from page 202 on-
ward.) These mixers are used for the basic set-up of
a model helicopter:

Free mixers

MIX active/phase

Fl. phase timers

Helicopter mixer

MIX-only channel

Dual mixer

For flight phase programming, see the menus:
•  »Basic settings, model«, page 94
•  »Phase settings«, page 156
•  »Phase assignment«, page 158
When the switch for a specific flight phase is actua-
ted, then the name of the given flight phase, e. g.
«Normal», will be displayed at the lower left edge of
the display screen:

Pitch

Throttle

Tail

Roll

Throttle

Roll

Throttle

Tail

Nick

Throttle

Tail

Swash rotation

Swash limiter

0°

OFF

normal

Gyro suppress

Gyro gain

In each of these flight phases – with the exception of
the auto-rotation phase – the typical helicopter mixing

and coupling functions shown in the screen-shot
above are available for setting up the model helicop-
ter. These functions are described in the first part of
this comprehensive chapter.

General information on mixers,
(see also pages 169 and 204)

An arrow “



” indicates a mixer. A mixer “branches

off” the signal flow of a control function at a particular
point, in order to use this flow to cause a predeter-
mined effect on a further control channel and, ulti-
mately, the receiver output. “C1



Tail” mixer means,

for example, that when the pitch-axis stick is actu-
ated, the tail rotor servo must also react within the
scope of its setting.

Basic programming procedure:
1. Select the mixer by using the selection keys of the

left or right four-way button.
Depending on the mixer involved, the bottom dis-
play line will show either SEL or the

(indicating

a change to a second page is necessary).

2. A brief tap on the center

SET

key of the right four-

way button will permit direct settings for linear mix-
er ratios. Use the selection keys to set the mixer
ratio.
Otherwise you will need to switch to the second
screen page where you can set up the appropriate
curve mixer.
A simultaneous tap on the





keys of

the right four-way button (CLEAR) will reset a
changed value in a given active (inverse video)
field back to 0 %.

3. Another tap on the center

SET

key of the right

four-way button will complete the entry.

4. A tap on the center

ESC

key of the left four-way

button will cause a return to the previous display
page.

Description of helicopter mixers

To set collective pitch curves as well as the two mix-
ers, “C1



Throttle” and “C1



Tail”, there are curve

mixers available in all flight phases. Accordingly, these
mixers also permit the programming of non-linear
mixing ratios along the path of stick travel, if required.
Switch to the display screen for curve settings with a
brief tap on the center

SET

key of the right four-way

button, see description below.
The curve is set up basically in the same way as the
Channel 1 curve for helicopters, but we will describe
it again here in detail using pitch configuration as
an example, to save you having to leaf through the
manual.
In the remaining lines, first activate the value field
and then use the selection keys of the left or right
four-way button to set a mixer value in the value field
(inverse video).
The settings available are rounded off with the
“Swashplate limiter” option: This option can be set to
restrict maximum deflection of the swashplate servo
in the sense of a limiter. Together, these settings con-
figure the basic set-up of the helicopter model.
In the “Autorotation” flight phase as described on
page 202, however, the mixers “C1