Instructions / Assembly
Diamond Dual Instruction Manual 19
Personal Transmitter Setting
All GTO transmitters have a standard setting and are ready to
operate your Mighty Mule Gate Opener. For your safety and
security, we strongly recommend that you replace the factory
setting with your own personal setting.
NOTE: If you have multiple transmitters, you should adjust all of
them at this time.
Step 1
Use a small phillips head screw driver to remove the transmitter
cover.
Step 2
Set the transmitter DIP switches using a small screwdriver.
There are nine (9) transmitter DIP switches; each can be
placed in three different positions (+, 0, –). DO NOT set all
the switches in the same position, such as all +, all 0, or all –.
Once the DIP switches have been reset, replace and close the
access cover.
WARNING: No other adjustments should be made inside the
transmitter.
Step 3
Program the new setting in the control board memory.
A. Slide the control box ON/OFF switch to the OFF position.
B. Press and hold the transmitter button while sliding the ON/
OFF switch to the ON position.
C. Continue to hold the transmitter button until the alarm
sounds (3-5 seconds).
D. Release the transmitter button. The new transmitter setting is now
programmed.
E. Verify that the transmitter operates the gate.
NOTE: It is NOT necessary to remove the cover of the control
box to program the new transmitter code, but when the control
box cover is removed the receiver range is reduced to less
than 5 feet.
FCC WARNING: Changes or modications to this unit not expressly approved by the party responsible for compliance could void the user’s authority to operate
the equipment. In accordance with FCC Part 15, Section 15.21, the manufacturer is not responsible for any radio or TV interference caused by unauthorized
modications to this equipment. Such modications could VOID the user authority to operate the equipment.
NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are
designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, 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. The external solid
wire antenna was used during FCC testing. Substitutes should not be used.
However, there is no guarantee that interference will not occur in particular installations. If this equipment does cause harmful interference to radio or
television reception, which can be determined by turning the equipment o and on, the user is encouraged to try to correct the interference by one or more of
the following measures: • Increase the separation between the equipment and the receiver. • Connect the equipment into an outlet on a circuit dierent from
that which the receiver is connected. • Consult the dealer or an experienced radio/TV technician for help.
1 2 3 4 5 6 7 8 9
ECE
A23S 12V
ALKALINE BATTERY
+
0
–
LED
+
0
ECE
1 2 3 4 5 6 7 8 9
ON/OFF
Switch
ON/OFF