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218 Detail program description - Tx. output swap
Using the selection keys on the left or right touch 
pad, page to the menu option »Tx. output swap« Tx. 
output swap on the multi-function menu: 
Phase trim
Non-delayed chan
Timers (general)
Fl. phase timers
Wing mixers
Free mixers
MIX active/phase
MIX-only channel
Dual mixer
Fail-safe adjust
Teacher / pupil
Tx. output swap
Non-delayed chan
Timers (general)
Fl. phase timers
Helicopter mixer
Free mixers
MIX active/phase
MIX-only channel
Dual mixer
Swashplate mixer
Fail-safe adjust
Teacher / pupil
Tx. output swap
Briefl y tap the center 
SET
 key of the right touch pad 
to open this menu option.
Tx. output swap
To achieve maximum fl exibility regarding receiver 
socket assignment, the 
mc-20
 HoTT program offers 
you the option of swapping servo outputs 1 to 16 as 
you please.
This option lets you distribute the transmitter's 16 
"control channels" to any of the transmitter outputs
1 … 16. If you do, you must remember that the 
»Servo display« screen – accessible from almost any 
menu option by simultaneously tapping the 
e and f
keys on the left touch pad – refers exclusively to the 
"control channels" as preset by the receiver socket 
assignment: it therefore does NOT take any output 
swaps into account.
   Tx. output swap
Swapping the outputs on the transmitter
Ser vo
Ser vo
Ser vo
Ser vo
1
2
3
4
1
2
3
4
Output
Output
Output
Output
T R A N S F E R   O U T P U T
SEL
Use the 
cd selection keys on the left or right touch 
pad to select the channel/output combination to be 
changed then briefl y tap the center 
SET
 key of the 
right touch pad. You can now use the right selection 
keys to assign your selected (control) channel to the 
desired output, confi rming this with the 
SET
 key … 
Ser vo
Ser vo
Ser vo
Ser vo
6
2
3
4
1
2
3
4
Output
Output
Output
Output
T R A N S F E R   O U T P U T
SEL
… or, by tapping the 
cd or ef selection keys on 
the right touch pad at the same time (CLEAR), you 
can restore the original assignment. 
Any subsequent changes, such as servo travel 
adjustments, Dual Rate / Expo, mixers etc., must 
always be performed in accordance with the 
original receiver socket assignment!
Example:
In the 
mc-20
 HoTT helicopter program, the outputs 
for a collective pitch servo and the throttle servo 
are swapped around, compared to some older 
GRAUPNER/JR mc units. The throttle servo now 
occupies transmitter output "6" and the collective 
pitch servo output "1". Perhaps, however, you wish 
to retain the previous confi guration? In this case, you 
will swap over channels 1 and 6 as appropriate, so 
that (control) channel 6 is located on output 1 and 
vice versa – as shown above:
Note:
"Channel Mapping" (channel assignment) is the 
receiver-side channel correlation function integrated 
into the 
mc-20
HoTT transmitter's telemetry menu. 
With channel mapping, the transmitter's control 
channels (16 maximum) can be freely distributed 
to multiple receivers or receiver outputs having the 
same control function, for example to operate two 
servo controls per aileron surface instead of just 
being able to control one servo, etc. To keep controls 
manageable, however, we strongly recommend using 
only one of the options at a time.