User Manual

ManualsBrandsJR ManualsHobby9303 Synthesized Air R790, No Servos

9303 PROGRAM MIX EXAMPLES

Here are a few examples of some common program mixes. They are intended as a quick reference guide and

may require modification to suit a particular installation.

SMOKE SYSTEM MIXER

This mixer is used to turn a smoke system on and off and is intended for a smoke system that plugs

directly into the receiver (RX). The mix is turned on and off using a combination of the throttle stick

position and a switch. When the switch is turned on and the throttle stick is moved above a certain

point, the smoke system comes on. When the switch is turned off, the smoke system is disabled and will

not come on when the throttle stick is advanced.

The are many ways to program this type of mixer and this is but one of them. The mixer will use the

AUX4 channel (channel 9) for the smoke system and will use the GEAR switch to turn the smoke mixer

on and off. The approach involves reducing the travel of the smoke channel (AUX4) to where the

smoke system just turns off so there is not enough travel on the AUX4 channel to activate the smoke

pump. Then the mix will add to the AUX4 travel, turning the smoke system on. The mixer uses the

Throttle as the Master and AUX4 as the Slave and the Offset will be set so that the smoke system comes

on at about ½ throttle.

1. Access the DEVIC.SEL function and temporarily Activate the Rudder D/R switch under the

AUX4 channel. This activates AUX4.

2. Plug the smoke system into the AUX4 channel and turn on the Transmitter (TX) and RX.

3. Flip the Rudder D/R switch back and forth and the smoke pump should run when in one of the

switch positions. Turn the smoke system off with the switch for now.

4. Access the TRVL ADJ. Function. With the Rudder D/R switch in the position that causes the

smoke system to turn ON, reduce the travel of the AUX4 channel in both directions until the

smoke pump just turns off (travel percentages should be equal for both directions). At this point

there is not enough travel on the AUX4 channel to turn the smoke system on. Power everything

off.

5. Return to the Devic.SEL function and Inhibit the AUX4 channel. The Rudder D/R switch can

no longer control the smoke system.

6. Access an unused program mix (PROG MIX3, 4, 5, or 6)

7. Select #THR as the Master. This Throttle selection with the # sign at the beginning of the name

indicates that the mixer is to ignore any throttle curves that may be associated with the throttle

channel. The mixer will read only the physical position of the throttle stick.

8. Select AUX4 as the Slave.

9. Select the GEAR switch to turn the mixer on and off.

10. Highlight and select Offset and set the value to 0 which should represent ½ throttle.

9303 Program Mix Examples 1

Summary of content (8 pages)

PAGE 1
9303 PROGRAM MIX EXAMPLES Here are a few examples of some common program mixes. They are intended as a quick reference guide and may require modification to suit a particular installation. SMOKE SYSTEM MIXER This mixer is used to turn a smoke system on and off and is intended for a smoke system that plugs directly into the receiver (RX). The mix is turned on and off using a combination of the throttle stick position and a switch.
PAGE 2
11. Move the GEAR switch back and forth while observing the number directly to the right of the program mix name in the upper left portion of the display. The number will change between 0 and 1 as the switch is moved back and forth. When the number is 0, the mixer is looking at the Pos0 values (not programmed yet) and when it is 1, the mixer is looking at the Pos1 values (also not programmed). Put the GEAR switch in the position where you want the smoke system to turn ON.
PAGE 3
IDLE-UP MIXER This mixer is used to increase the idle slightly to help insure that the engine does not flame-out during spins and other maneuvers that are performed at idle. The mix is turned on using the GEAR switch just after take-off and turned off when it is time to land. The amount of Idle-Up (increase in RPM) can be adjusted from the front of the TX to compensate for varying conditions without having to enter the program mix to make adjustments.
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Now turn the Mixer on using the GEAR switch. Move the Digital Flap Trim lever up or down to achieve the desired amount of RPM increase. Moving the lever up will increase RPMs and moving it down decreases RPMs. Turning the mixer off with the GEAR switch causes the engine to return to Low Idle and turning it on increases the RPM according to the setting of the Digital Flap Trim. 10. Stop the engine and observe the throttle linkage. Turn the Idle-Up on and advance the Throttle to Full. Use the TRAV ADJ.
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A MIXER TO ELIMINATE ROLL COUPLING This mixer is used to eliminate any Proverse roll (rolling in the same direction as the rudder) coupling that may occur when Rudder input is applied. The mixer causes the ailerons to deflect just a bit in the opposite direction of the Rudder in order to keep the aircraft from rolling while holding Rudder for knife-edge flight. This mixer uses the Rudder as the Master and the Ailerons as the Slave.
PAGE 6
DOWN ELEVATOR AT IDLE TO ELIMINATE PITCHING TO CANOPY ON DOWN LINES This mixer is intended for aircraft that pull-out or pitch towards the canopy when flying a vertical down line at idle. If a mix is set up to provide a couple of degrees of down elevator when at idle, the aircraft will track straight down without input from the pilot. Once the throttle is advanced above idle, the mixer is turned off and the down elevator is removed.
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Now turn the Gear switch to the OFF position and note that the number next to the Program Mix Name is now 1 indicating that the mixer is looking at the other position values which are still set to 0%. Since both of the values are at 0% there is no deflection of the elevator – the mixer is turned OFF regardless of throttle stick position. Verify that the elevator does not move when the throttle stick is moved. Test fly the aircraft and adjust the percentage as may be necessary.
PAGE 8
A MIXER TO ELIMINATE PITCH-COUPLING This Multi-Point Program Mix is intended for aircraft that pitch towards the landing gear when holding rudder for knife-edge flight – commonly known as Pitch-Coupling. If a mix is set up to provide an appropriate amount of Up elevator for different amounts of rudder input, the aircraft will fly straight without pitching to the gear while holding rudder during knife-edge flight. This mixer uses the Rudder as the Master and the Elevator as the Slave.