Please note that the charger supplied with this radio has an output of 50 mA for both the Transmitter and Receiver.

The Transmitter battery has a capacity of 700 mAH and requires to be charged for 20 hours to completely recharge it from a fully discharged state. A 14 hour charge will give a flying time of around 2 hours which will probably be adequate for most requirements. When fully charged, flying time should be in excess of 3 hours.

A Receiver pack of 700 mAH capacity will also require charging for 20 hours for a full charge. Where a 1000 mAH receiver pack is supplied, this will require 28 hours for a full charge.

It should be noted that the maximum travel of any servo, under any conditions, is limited to 150% of the normal travel. This must be born in mind when when using large trim offsets, or when mixing two or more channels.

When the travel is set to the normal 100%, trim offsets of up to 50% can be used without unwanted effects appearing (100%+50%=150%). Adding more trim will mean that the servo travel will be restricted, in one direction, and the response will become asymmetric.

Where two channels are being mixed together, the maximum throw of each is restricted to 75%. This is to avoid the throw exceeding 150% when both channels move in the same direction (2x75%=150%). To allow the trims to be used, this figure must be reduced to 60%, or less.

If three channels are to be mixed, the maximum useable figure becomes 50% (3x50%=150%), or 40% if the trims are to be used.

When the above figures are exceeded by a significant amount it may be found that the servo reaches its travel limit well before the control stick reaches its end stop. The remainder of the stick movement will then produce no further response from the servo.

It is suggested that any extreme mixing program should be carefully checked in all combinations of control stick positions before flying the model.

Apart from the actual controls, all of the various adjustments for servo direction, amount of travel, etc are set by programming the internal computer. This is done by means of the Liquid Crystal Display on the Transmitter front panel. This display incorporates a touch sensitive membrane which allows all of the inputs to be made by simply touching the appropriate point (or 'flag') on the display itself.

When the Transmitter is turned on, an introductory screen will appear with an ENTER sign in the top right hand corner. The various information conveyed by this screen will be described later. Touching the ENTER sign will change the screen to one which allows you to select various functions.

Programming the PCM 10 is performed by first calling up the appropriate FUNCTION. This can be done in two ways:
1. a) Enter the number (2 digits) of the function required, by touching the number flags. The name of the function will appear to confirm your selection.
b) Touch the ENTER flag.
Or,
2. a) Touch the D.LIST flag. A - and + will appear.
b) Touching the + will step through all of the available functions in turn. The - will step through the functions in reverse.
c) When the required function appears, touch the ENTER flag.

Note that the functions listed include one titled INFO-DISPLAY. This will return you to the introductory screen.

When a function has been selected via the D.LIST option, further use of the D.LIST flag will return you to the same function. When the Transmitter is first switched on, however, FUNCTION 11 REVERSE SW will always be selected.

Many of the functions are spread over several 'pages'. These are selected by touching the PAGE flag until the required page is reached.

Note that touching the ENTER flag after accessing a function merely serves to return you to the [FUNCTION MODE] screen, it does not enter information. Information is entered as soon as a change is made. If you now wish to change your mind, the original figure must be re-entered.

A full list of the available functions and the adjustments which can be performed by each is as follows:
FUNCTION 11 REVERSE SW - Reverses the direction of any servo.
FUNCTION 12 TRAVEL ADJUST - Sets the throw of each channel in each direction. Max. 150%.
FUNCTION 13 D/R & EXP - Allows 3 different rates and 8 types of response to be set for aileron, elevator and rudder channels.
FUNCTION 15 SUB TRIM - Offsets servo to one side. Max. 125%.
FUNCTION 17 TRIMMER FUNC. - Crosses throttle and elevator trims and enables flap and Aux 3 trim levers.
FUNCTION 18 PITCH CTRL - Allows throttle stick to also operate a variable pitch propeller.
FUNCTION 22 WING TYPE - Selects between Flaperon, Elevon and Normal. Enables V-Tail.
FUNCTION 28 DATA RESET - Returns all settings to default value.
FUNCTION 31 SNAP ROLL - Puts aileron, elevator and rudder to preset position when Snap Roll button is operated.
FUNCTION 48 AUTO RUDD D/R - Allows rudder rate to be changed at low, half and high throttle settings.
FUNCTION 51 PROGRAM MIX 1 - )
FUNCTION 52 PROGRAM MIX 2 - ) Mixes any channel with any other
FUNCTION 53 PROGRAM MIX 3 - ) channel. Channels 1 - 8 only.
FUNCTION 54 PROGRAM MIX 4 - ) see above.
FUNCTION 55 PROGRAM MIX 5 - )
FUNCTION 56 MODEL SELECT - Selects one of seven different models.
FUNCTION 57 TRIM OFFSET - Offsets aileron, elevator or rudder centre to one side. Does not change end points. Max. 127%.
FUNCTION 58 GEAR SLOW U/D - Sets retract time to 1, 2, 3, 4 or 5 seconds.
FUNCTION 63 ELEVŒFLAP MIX - Mixes elevator into flap.
FUNCTION 66 LANDING - Presets elevator and flap positions under control of Brake switch. Can also operate at a preset throttle position.
FUNCTION 75 SERVO TEST - Cycles all servos slowly over full travel.
FUNCTION 77 FAIL SAFE - Sets servos to hold or go to preset position on loss of signal.
FUNCTION 81 MODEL NAME - Records name of model.
FUNCTION 83 TRIM RATE - Sets trim travel of aileron, elevator and rudder channels. 50 or 100%.
FUNCTION 85 MODULATION - Selects PCM or PPM. FUNCTION 87 TIMER - Resets integrated timer. Enables and sets countdown timer.
FUNCTION 88 KEYBOARD LOCK - Sets keyword to protect information.

In order to more fully understand the PCM 10, the following is an alphabetical list of each feature and how to access and adjust it:

By using FUNCTION 56 MODEL SELECT, any model, 1 to 7, can be selected by touching the appropriate flag.

Note that the data changes to the new model instantly but, where a change of Modulation is involved, this will not take place until the power switch is turned OFF and then back ON.

With FUNCTION 56 selected, touching the COPY flag will allow information to be copied from one model number to another. Note that the model to be copied FROM must be selected before touching COPY. In this instance, the process is not carried out until the ENTER flag is touched.

See Elevator>Flap Mix and Landing.

This is located on the right hand side panel of the Transmitter and can be inhibited via FUNCTION 17. The servo on the receiver AUX 3 outlet is also operated by the Brake switch.

FUNCTION 13 D/R & EXPO has 3 pages:
1. Sets all of the values for the aileron channel. 3 different rates may be set (0, 1 and 2) and these are selected by putting the aileron Dual Rate switch into the appropriate position. To change the rate, use the + and - flags. Touching CL will return the value to 100%. Note that the actual rate is also set by the value of the Travel Adjust (FUNCTION 12). If the travel is set to 150%, then 50% rate will actually give a rate of 75%,
Exponential can also be set from 0 to 100% (not when VTR is in use) and can be one of 3 forms (LIN/EXP, EXP/LIN, or NORMAL), , which are selected by the SEL flag below TYPE. Touching the CLEAR flag will return the type to NORMAL.
LIN/EXP (Linear/Exponential) means that the servo response will be linear when close to the centre of the travel, but can be steadily increasing or reducing as the maximum travel is approached.
EXP/LIN (Exponential/Linear) means that the response varies when close to the centre but becomes linear at maximum movement.
NORMAL means that the response is steadily increasing or decreasing over the whole throw. Positive exponential makes the response less sensitive close to the centre while negative exponential makes it more sensitive.
VTR provides a 'dogleg' type of response where the rate changes at a preset point which can be set to 50%, 60%, 70%, 80%, or 90% of the full travel. D/R now sets the rate from the centre of the throw up to the set point. Maximum throw remains unchanged.
Note that all of this is graphically represented on the display which makes it much easier to understand than a written description. Also note that exponential and VTR cannot be used together.
2. Sets all of the values for the elevator channel. Otherwise as page 1.
3. Sets all of the values for the rudder channel. Otherwise as page 1.

FUNCTION 63 ELEV>FLAP MIX allows the elevator stick to control the flaps. The mix ratio can be set to 0 to 100% in either direction and the flap movement can be in either direction. To inhibit this function, set the percentage to 0%.

These are accessed by FUNCTION 22 WING TYPE. The SEL flag selects NORMAL, FLAPERON or ELEVON operation.
NORMAL means no mixing.
FLAPERON mixes the aileron and Aux 1 channels so that each can be used to control one aileron. They move in opposition for aileron control and together for flap operation. The flap operation can be from elevator mixing or via the Brake switch. By using the DIF-RATE flags TURN, + or - a differential aileron action can be obtained.
ELEVON works in a similar action to FLAPERON, but mixes the aileron and elevator channels.

This is accessed via FUNCTION 77 and can only be used with PCM type modulation (set by FUNCTION 85).

The right hand side of the display will indicate BATT F.S. This can be selected to OFF or to drive the throttle servo to a preset position if the receiver battery voltage drops below a safe value. The available positions are LOW, HALF or HIGH.

The SEL flag at lower left allows you to select between HOLD, 1.0 SEC, 0.5 SEC and 0.25 SEC.
HOLD means that all servos will hold their last position if the Transmitter signal is lost.
1.0, 0.5 and 0.25 SEC indicate the delay which takes place between loss of signal and all servos being sent to preset positions. When one of these is selected the controls should be set into the required position and the MEMORY STORE flag touched. The positions will then be stored and this information will be automatically sent to the receiver when the set is switched on.

This selects the method of flap operation. which can be mixed from the elevator of preset for landing.

See Elevons.

FUNCTION 58 GEAR SLOW U/D sets the speed at which the retract servo operates. When this facility is inhibited, the servo will move at its maximum speed.

When active, the retract time can be selected by the SEL flag to be 1, 2, 3, 4 or 5 seconds.

This switches the retract servo, if used, between two positions which are set by FUNCTION 12 TRAVEL ADJUST.

By means of FUNCTION 66 LANDING, the elevator trim and flap positions can be preset for landing by moving the Flap switch to the LAND position.

An additional feature is that this operation can be automatically switched at a preset point on the throttle stick. This is done by moving the stick to the required position and touching the STORE flag.

This is fully automatic and provides a visual and audible warning when the Transmitter battery falls below about 8.9 volts. When this happens you should land the model immediately.

FUNCTION 81 allows you to give the model a name which will appear on the display with the model number. It has 4 pages (accessed by the SEL flag) which contain flags for the alphabet and the numbers 0 - 9. The cursor (^) indicates the location at which the letter or number is to be entered. These can be erased by using the space flag. The Πflag moves the cursor to the right.

5 programmable mixers are available and these are accessed via FUNCTION 51, 52, 53, 54, or 55. When entered a screen appears which shows the mixer to be INH and gives a choice of channels 1 - 8. These being throttle, aileron, elevator, rudder, gear, Aux 1 (pitch), Aux 2 and Aux 3 (if in doubt, the quickest reference of the channel order is the label on the end of the receiver).

Touching any flag will enable the mixer and bring up the name of that channel as the channel to be mixed from. Touching a second number will bring up the name of that channel as the one to mixed to. Touching ENTER will now bring up several options.
SW gives several options for the manner in which the mixer may be switched on or off and are stepped through by the SEL flag:
ON means that the mixer is on all the time.
BRK indicates that the mixer is on only when the Brake switch is in the ON position.
LND means that the switch is only on when the Flap switch is in the LAND position.
E>F sets things so that the mixer is only on when the Flap Mode switch is in the ELEV position.
AX2 means that the mixer is switched on or off by the AUX 2 switch.

The two percentages indicate the amount of the first channel which is to mixed into the second channel. These are changed by the + and - flags. The TURN flag allows the direction of mix to be changed to positive or negative. Note that this means that movement of the first channel in either direction can move the second channel in the same direction if required.

OFFSET means that the second channel can be offset by up to 100% of the first channels throw before mixing. This is done by moving the first channels control to the required position and then touching STORE.

PAGE moves to the second page where you are given the option to include the mix. If the first channel is already being mixed from some other channel (via another mixer), this will decide whether that mix is to be passed on to the second channel.

Let's try that again. Assume that aileron is being mixed into elevator by mixer 1 and elevator is being mixed into rudder by mixer 2. Including the mix on mixer two will mean that the aileron mix is passed on to the rudder

CLEAR on the first page will inhibit the mixer and erase all of the information entered.

Channels which have a trim control will give the option to include the trim in the mix, or not, via the TRIM SEL flag.

Note that channels can be mixed with themselves in the reverse direction which will result in that channels control becoming ineffective.

Accessing FUNCTION 11 REVERSE SW will produce a page showing reversing switches for all channels. Touching the appropriate number flag will change the state of that switch between NORMAL and REVERSE.

By means of FUNCTION 48 AUTO RUDD D/R, the rudder rate can be automatically set at various points on the throttle sticks movement. Low stick will select the rate set on the rate switches O position; half stick will select the 1 rate and high stick will select the 2 rate.

FUNCTION 88 allows a 3 figure key word to be entered to safeguard information. First enter the selected figures and then touch STORE. To remove the lock enter 000 and touch STORE.

When the Transmitter is first switched on, you will be invited to enter the key word before you can proceed further. When being entered, the number will not actually appear on the display to maintain security. It's place will be taken by ***.

Note that if the key word is forgotten, you have no alternative but to try all 999 possibilities!

With FUNCTION 85 selected, you can use the SEL flag to switch between PPM and PCM. A change means that the Transmitter must be switched off and then on again.

Using FUNCTION 87 the Integrated Timer can be reset by touching the CLEAR flag. Note that there is a different timer for each model.

The countdown timer can be enabled by means of the MODE SEL flag and cab then be set to a maximum of 60 min 50 sec by means of the +, -, and + flags. On returning to the entry screen the timer can then be started or stopped. At the end of the set time there is an audible countdown.

Simply selecting FUNCTION 75 will cycle all the servos slowly over their entire travel. First ensure that the models linkages are capable of accommodating this amount of travel, or remove any limiting linkages.

The necessary aileron, elevator and rudder inputs for snap rolls may be preset by FUNCTION 31 and operated by the snap roll button. Switches on the rear of the Transmitter select between LEFT/RIGHT or UP/DOWN direction and this information is shown on the introductory screen. + and - flags set the input for each channel. Maximum input is 150%.

This allows any of the ten channels to be offset by up to 125% in either direction subject to the limitations already noted. After entering via FUNCTION 15, there are two pages which invite you to set each channel via + and - flags. Note that it offsets the whole travel, including end points.

A fully automatic facility which provides an audible and visual warning if the Transmitter is switched on with the Flap switch in the LAND position.

The throttle and elevator trims can be crossed, if required, by means of FUNCTION 17 TRIMMER FUNC.

FUNCTION 12 allows the throw of each channel to be set in each direction via + and - flags. There are two pages with 5 channels on each. Note that the stick must be moved to the appropriate end to access each direction. Maximum is 150%.

This is accessed via FUNCTION 57 and is different in action to FUNCTION 15 SUB TRIM in that it does not move the end points set by FUNCTION 12.

It offsets the aileron, elevator and rudder trim levers by first touching STORE and then placing the lever in the required position and touching ENTER. Note that full movement of the trim lever will give an input of 35 - 41%. This can be repeated up to a maximum of 127%. However, note the limitations already discussed.

FUNCTION 83 allows the trim action of the aileron, elevator and rudder channels to be halved. Touching the appropriate SEL flag switches between 100% and 50%.

Where a variable pitch propeller is used, FUNCTION 18 PITCH CTRL allows this to be controlled by the throttle stick via Aux 1 channel.

The lever on the left hand side panel now controls the throttle low point and its throw is set I.UP, while the lever on the right hand side panel controls the high pitch setting and its throw is set by PIT. Opening of the throttle can be delayed by up to one second, as can the reducing of pitch.

Setting the throttle stick at a preset point and touching POINT STORE sets the point at which the pitch changes from high to low.

FUNCTION 22 WING TYPE, allows this feature to be active or inhibited. Its function is to mix the elevator and rudder inputs. The direction and throw of these is set in the normal way via FUNCTION 11 and FUNCTION 12.

See Dual Rates.