Next is the Speed. The default speed for both directions is Normal (instantaneous) but it can be changed for up to 30 seconds in varying increments. The Name A: and Name B: which can be edited using your own and up to 11-character count along with their respective 3-letter abbreviation in brackets (S#A, S#B) are “User Assigned Channel Names.” Active sequencers will ap- pear throughout function screens as assign- able switches. Some menus will use the longer name you enter, but on the Monitor Screen and most other places the short name is used. Chan A: and Chan B: are the output channel selections that the se- quencer will control, and the Type A: and B: Propo (proportional) and Step describe how the channels will behave. Note that you do not need to assign a sequencer output to a receiver channel if you do not wish to have that function control a servo. We’ll use this later on.


The NEXT screen shows a time window. The duration was set in the previous screen for each forward and reverse direction. The top horizontal box represents Channel A and the bottom box Channel B. Each box’s vertical aspect represents the channel out- put from +100 to –100% with the middle of the box being 0%. The numbers 0,1,2,3 and


FLYING MODELS


4 at the top of the screen are segments of time which can be adjusted using the Point: selection on the right of the screen. You can also adjust each point’s position along the time line using the Time: selection. What that allows you to do is adjust when an ac- tion occurs as a percentage of the total time duration. The other two bottom selections are the two outputs; this is where you adjust the output of each function at the five differ- ent points of the time line. Between the two horizontal boxes is the Time Marker that travels across the screen at the rate set by the Speed setting in the previous screen. When you toggle the as- signed switch the Time Marker travels along the set time and the sequencer con- trols the channel outputs, making a complex sequence of events very easy to set up. Now that I have described the sequencer function, screens and selection options it’s time to give some example of use. Spektrum has provided two pre-programmed se- quencers that require a switch to be selected in order to activate them, a DoorCycle/ Wheels and a DoorBasic/Wheels for use in airplanes with retracts and landing gear doors.


For example, with a flip of the gear switch you could have an auxiliary channel open


landing gear doors then have the retract channel lower the landing gear followed by the auxiliary channel closing the gear doors after the gear is extended. These provided sequencers are explained and demonstrated by Chris Huhn of Horizon Hobby in this video http://tinyurl.com/akmg4t6 but what I want to talk about is the extra things the Se- quencer can do. Once you have created a Sequencer it’s very important that you power cycle the ra- dio in order for the changes to take effect. This will cause the radio to re-initialize and make the active sequencers available in oth- er screens. One place where you will find the sequencers is in the list of switches. For each sequencer created you will find two switch options, a five-position pseudo switch and a three-position pseudo switch. We will refer to these as S#A and S#B.


The 5-position switch corresponds to the sequencer Time values (0–4) shown on the time delay graph of the second screen, track- ing the A channel horizontally. The 3-posi- tion switch gives the position of the B chan- nel’s output (vertical), divided into equal thirds of travel. This lets you use the se- quencer to control in various other items in such as Flight Mode, Dual Rate, Mixing, Throttle Curve, Pitch Curve, etc.


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