I-2
Table of Contents
Using the Manual ..........................................................................................................................................I-11
Section 1: Transmitter and Receiver Features and Specifications .................................................................I-12
JR 12X Transmitter ...................................................................................................................................I-12
Features .....................................................................................................................................................I-12
Specifications ............................................................................................................................................I-12
Flash Memory ...............................................................................................................................................I-12
Battery Alarm and Display ............................................................................................................................I-12
JR R1221 Receiver....................................................................................................................................I-13
Features .....................................................................................................................................................I-13
Specifications ............................................................................................................................................I-13
Charging .......................................................................................................................................................I-14
Transmitter/Receiver .................................................................................................................................I-14
JR Transmitter Charging ...........................................................................................................................I-14
Using the Included Charger .......................................................................................................................I-14
Control Stick Tension Adjustment .................................................................................................................I-15
Advanced Digital Trims .................................................................................................................................I-15
Control Stick Length .....................................................................................................................................I-15
Neck Strap Attachment .................................................................................................................................I-15
Installing the Receiver ..................................................................................................................................I-16
Installing the JR R1221 .............................................................................................................................I-16
Binding ..........................................................................................................................................................I-17
How to Bind ..............................................................................................................................................I-17
ModelMatch ..................................................................................................................................................I-18
Failsafe Functions .........................................................................................................................................I-18
SmartSafe .....................................................................................................................................................I-19
Receiver Power Only .................................................................................................................................I-19
After Connection........................................................................................................................................I-19
Failsafe for JR/Spektrum ...........................................................................................................................I-19
Receiver Power Only .................................................................................................................................I-19
After Connection........................................................................................................................................I-20
Programming SmartSafe ...........................................................................................................................I-20
Programming Preset Failsafe for JR/Spektrum .........................................................................................I-20
Range Testing ...............................................................................................................................................I-21
Range Testing ............................................................................................................................................I-21
Advanced Range Testing Using a Flight Log .............................................................................................I-21
Advanced Range Testing ...........................................................................................................................I-22
Flight Log—Optional for JR R1221 Receiver ................................................................................................I-23
Using the Flight Log ..................................................................................................................................I-23
Receiver Power System Requirements .........................................................................................................I-24
Recommended Power System Guidelines ....................................................................................................I-24
Tips On Using 2.4GHz Systems ....................................................................................................................I-25
Airplane – Acro Mode ....................................................................................................................................A-1
Transmitter Identification ACRO .....................................................................................................................A-2
System Mode .................................................................................................................................................A-4
To Enter System Mode ...............................................................................................................................A-4
Function Mode ...............................................................................................................................................A-5
To Enter Function Mode .............................................................................................................................A-5
Function Mode List ........................................................................................................................................A-5
System Mode .................................................................................................................................................A-6
Accessing the System Mode ......................................................................................................................A-6