Horizon Hobby SPMSLT300 User manual

User Manual
Specifications
Transmitter type: SPMSLT300
Scope of power supply:4.0V~6.6V
Transmit frequency:2.4G
Transmit power:<100mw
Remote control distance:>150m
Power requires:four AA batteries
Adjustment method: knobs,switches
Main functions
SLT3 is a 3-channel transmitter, which can set up the TRIM、DR、REV and EPA of TH and ST
SLT3 receiver with 3 channel PWN output channels and fail-safe setting parameter function,With
multiple protection measures,such as low voltage protection and throttle signal loss protection.
Statements and warnings
Please be sure to strictly follow the power supply mentioned in above specifications, otherwise
might burn this device.Transmitter battery box is suitable for 4 alkaline batteries. At the same
time, make sure the positive and negative terminals of the battery installed correctly. incorrect
battery polarity will cause damage to the remote-control unit.The transmitter indicates the
power capacity through the LED. When the LED changes to slowly flashing from normal
light,means the battery voltage is low. please replace the batteries immediately.
Calibration function
Before factory out, it has done the neutral point calibrations of the throttle, steering and set up
the maximum movements.
Incorrect steering/throttle calibration will cause the motor/servo unable to output at full angles
or the rear section of steering/throttle without linear;Then the throttle and steering need to be
calibrated. The calibration method is listing as below:
Step 1: Turn and hold the steering wheel full right,and turn the throttle trigger at full brake.
Step 2: Power on the transmitter. The LED light flashes slowly, indicating that the calibration
mode is entered.
Step 3: push and pull the throttle trigger to the maximum forward and brake positions, to

calibrate the throttle potentiometer;Turn the steering wheel left and right to the maximum
positions to calibrate the steering potentiometer.
Step 4: Please release the throttle trigger and steering wheel, make them return to the middle
position, keep pressing button A, to calibrate neutral point of throttle and steering.
Step5: If the LED light keeps on, calibration is done.If the LED light flashes rapidly, it indicates that
the calibration failed, please repeat step 1 to step 5 to calibrate again.
DR function
ST DR
Using to adjust the maximum travel of the steering. Turn the knob clockwise to increase the
maximum travel.
TH Forward DR
Limits throttle output to 50/75/100%, three different maximum speeds optional for users.
Neutral point of trim knobs
To adjust the neutral position of steering and throttle. It can be adjusted quickly by the
corresponding knob on the transmitter.
REV function
To adjust the positive and negative output of the throttle and steering. Turn the switch to the R
position to indicate the reverse output.
CH3 Programming
CH3 is controlled by two buttons.
-When both buttons are free, the third channel of the receiver outputs 1.5ms
-When button B is pressed, the third channel of the receiver outputs 1.9ms.
-When button A is pressed, the third channel of the receiver outputs 1.1ms
Low voltage alarm function
-When the battery power is low, the LED light flashes slowly.
-When the battery is less power, the LED light turns off.

EPA settings
To separately adjust the movement of steering turns left and right, and the movement of throttle
trigger goes forward and backward.
Setting method:
Step 1: Power the transmitter on while holding the steering wheel full right and holding the
trigger at full throttle brake.
Step 2: The power LED rapidly flash 4 times then turn off to indicate the transmitter is in end
point adjustment mode.
Step 3:
1,Turn and hold the steering wheel full left, click or holding the button A (Increase) or button
B(decrease) to set up the EPA for turning left. When LED flash once indicates the default increase
or decrease 1.
2,Turn and hold the steering wheel full right, click or holding the button A (Increase) or button
B(decrease) to set up the EPA for turning left. When LED flash once indicates the default increase
or decrease 1.
3, Hold the trigger at full throttle.click or holding the button A (Increase) or button B(decrease) to
set up the EPA for throttle turning left. When LED flash once indicates the default increase or
decrease 1.
4,Hold the trigger at full brake.click or holding the button A (Increase) or button B(decrease) to
set up the EPA for brake turning left. When LED flash once indicates the default increase or
decrease 1.
Notice: after setting is done, wait for 5S to ensure that the parameters are saved then turn off
the transmitter.
Factory reset mode
After factory parameters are reset, EPA and calibration data are reset to factory settings.
Operation steps:
Step 1: Power on the transmitter while holding the steering wheel to full left and the trigger to
full brake.
Step 2: The power LED rapidly flash 4 times then turn off to indicate the transmitter is in factory
reset mode.
Step 3: Please release the throttle trigger and steering wheel, the LED keeps on to indicate it’s
done.

Federal Communications Commission (FCC) Interference Statement
This equipment has been tested and found to comply with the limits for a Class B digital device,
pursuant to Part15 of the FCC Rules.
These limits are designed to provide reasonable protection against harmful interference in a
residential installation. This equipment generate, uses and can radiate radio frequency energy
and, if not installed and used in accordance with the instructions, may cause harmful interference
to radio communications.
However, there is no guarantee that interference will not occur in a particular installation. If this
equipment does cause harmful interference to radio or television reception, which can be
determined by turning the equipment off and on, the user is encouraged to try to correct the
interference by one of the following measures:
Reorient or relocate the receiving antenna.
Increase the separation between the equipment and receiver.
Connect the equipment into an outlet on a circuit different from that to which the receiver is
connected.
Consult the dealer or an experienced radio/TV technician for help.
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two
conditions:
(1) This device may not cause harmful interference, and (2) this device must accept any
interference received, including interference that may cause undesired operation.
FCC Caution: Any changes or modifications not expressly approved by the party responsible for
compliance could void the user's authority to operate this equipment.
RF exposure warning
This equipment complies with FCC radiation exposure limits set forth for an uncontrolled
environment.
This product may not be collocated or operated in conjunction with any other antenna or
transmitter.

Industry Canada (IC)
CAN ICES-3 (B)/NMB-3(B)
This device complies with Industry Canada’s licence-exempt RSSs. Operation is subject to the
following two conditions:
(1) This device may not cause harmful interference, and
(2) this device must accept any interference received, including interference that may cause
undesired operation.
Cetappareilestconforme à la norme RSS d'Industrie Canada. Son fonctionnementestsujet aux
deux conditions suivantes:
(1) ledispositif ne doit pas produire de brouillagepréjudiciable, et
(2) cedispositifdoit accepter tout brouillagereçu, y compris un brouillage susceptible de
provoquer un fonctionnementindésirable.
IMPORTANT NOTE:
Radiation Exposure Statement:
This equipment complies with IC radiation exposure limits set forth for an uncontrolled
environment.
Déclarationd'exposition aux radiations:
Cetéquipementestconforme aux limitesd'exposition aux rayonnements IC établies pour
unenvironnement non contrôlé.