User Manual

INTRODUCTION
SJ GR-12L/ GR-12Li/ GR-12Lm HoTT receivers are compatible with SJ T series transmitter and used to
airplane, helicopter and glider. HoTT system gives user real-time information on various useful data such as
user model‟s RPM, voltage, temperature, user programmable warning, and so on which are directly
obtained from telemetric speed controllers equipped with this HoTT system without having to install
separate sensor devices. Of course, all of those telemetric data can be also transmitted from separate
sensor devices. The use of up to 75 hopping channels provides advanced reliable operation while keeping
from any external interference.
All instructions, warranties and other collateral documents are subject to change at the sole discretion of SJ
INCORPORATED. For up-to-date product literature, visit http://www.openhobby.com and click on the
support tab for this product
WARNING: Read the ENTIRE instruction manual to become familiar with the features of
the product before operating. Failure to operate the product correctly can result in damage
to the product, personal property and cause serious injury.
FLYING SAFETY
• Do not fly your model near spectators, parking areas or any other area that could result in injury to people
or damage of property.
• Ensure that all channels are working in the proper manner.
• Perform a ground range check prior to the initial flight of the day
• Do not fly during adverse weather conditions. Poor visibility can cause disorientation and loss of control of
your aircraft. Strong winds can cause similar problems
• We strongly recommend to set the Failsafe function and also recommend that the preset Failsafe would
be idle position
• You need to set the function of the transmitter after removing a power battery from a model or stopping a
engine of a model.
• Ensure that all your batteries have been properly charged prior to flight.
GENERAL INFORMATION
1. Products
• GR-12L : Normal Rx 6ch
2. Features
• The use of up to 75 channels ensures extreme operating reliability and immunity to external interference.
• High bright LED allows to check the operating status
• The optimized sizes and weights
• Receiver input sensitivity and thus the range have been increased further.
• Servo connections in the front panel.
• Failsafe, Hold, OFF, and standard (channel 1 failsafe; all others hold) programmable.