FrSky TANDEM X20R User Manual

Instruction Manual for FrSky TANDEM X20R & X20RS
FrSky Electronic Co., Ltd. www.frsky-rc.com Contact us : frsky@frsky-rc.com
Add: F-4,Building C, Zhongxiu Technology Park, No.3 Yuanxi Road, Wuxi, 214125, Jiangsu, China Technical Support: sales4tech@gmail.com
TD-ISRM PRO RF PERFORMANCE
With solid performance based on the dual-band 900M/2.4G RF signal link with multiple operating combinations
of RF modes, the TANDEM X20R & X20RS versions are equipped with the TD-ISRM PRO built-in RF module
which is capable of supporting multiple protocols (like TW, TD, etc), with same RF capability as X20 Pro editions.
The TD-ISRM Pro RF module has the dual 2.4G TW RF mode and supports simultaneous activation of working
under TW and ACCESS R9 modes with the same module. In this configuration, the TW receiver and ACCESS
R9 receiver can be connected via the SBUS IN/OUT ports to achieve redundant backup. This RF signal connec-
tion solution makes use of three different RF links at the same time in RC applications. This further enhances the
RF signal's reliability, particularly in long-distance RC operations scenarios.
DIFFERENCES IN APPEARANCE & FUNCTIONAL INPUTS
The X20R and X20RS have changed from the original X20 design in appearance. The bottom hand grip adopts
the overall design of the PRO version, eliminating the need for an additional grip cover, and allowing the bottom
part to be fully grasped by the palm for a more comfortable and relaxed grip. Additionally, the Lite-type external
module slot has been adjusted to provide more fitting installation space for external modules of different shapes,
making it more convenient.
R and RS versions add 2 extra trims, allowing for more precise tunings during the operations. The slider levers
on both sides of the transmitter support adjusting the positioning of the center, catering to different users' habits
and preferences. The primary input components, including trim caps, center-slider caps, and knobs are all made
from metal, offering rugged quality and enhanced durability for outdoor use.
UPGRADED ROBUST ANTENNA HANDLE & EXTERNAL LORA ANTENNA CONNECTORS
The newly upgraded antenna handle incorporates the good capability of impact resistance facing the tough
conditions of outdoor fields. The reinforced and thickened antenna casing is better suited for comfort gripping but
also does not compromise the antenna's performance. On the contrary, the redesigned antenna can transmit
signal data more effectively, providing pilots with a more reliable flying control experience.
The X20R & X20RS are also equipped with 2 external antenna connectors, which can be mounted with additional
2.4G and 900M antennas for enhancing the RF capabilities working under the LoRa modes, to achieve enhanced
long-range control.
BUILT-IN MASS STORAGE & TEXT TO SPEECH FUNCTION (X20RS)
To save the user the trouble of deciding the storage capacity, both R and RS versions have a built-in 8GB flash
storage that offers big storage to meet all your radio's storage needs with high data transmission speed.
Thanks to the upgraded storage feature, the TTS (Text-to-Speech) function of X20 RS versions can quickly and
conveniently convert typed input English words into spoken speech. This enables the ETHOS system to more
flexibly match the triggered operational status using generated speech audio when specific functions are
activated and to alert clear outdoors with the digital power amplifier module.
DUAL-SIDE HAPTIC GIMBAL FEEDBACK (X20RS)
The gimbal vibration feedback function can be easily enabled or disabled by setting a switch. The dual-sided
Gimbal's vibration feedback can operate independently, allowing the configuration to match distinct feedback
preferences tailored to various application scenarios for RC enthusiasts.
Easy Travel-adjustable MC20R Gimbals (with any desired degree between 45° to 60°) (X20RS)
The MC20R Gimbals also has an 8° rotatable panel and can be adjusted to a 45° travel position. What's even
better is that the angle is not limited to just 45° and 60°, the MC20R Gimbal allows for adjustment of any travel
position between 45° and 60°. To enhance convenience for pilots in outdoor applications, the angle travel position
can be directly adjusted using a 1.5mm hexagon screwdriver through the adjustment hole on the Gimbal Panel,
eliminating the need to disassemble the radio casing.
Introduction

FrSky TANDEM X20R Specifications

General

Brand	FrSky
Model	TANDEM X20R
Category	Remote Control
Language	English

Summary

Introduction

TD-ISRM PRO RF Performance

Details the dual-band 900M/2.4G RF signal link and multiple protocol support.

Appearance and Functional Differences

Highlights physical changes, grip design, and adjusted module slot.

Upgraded Antenna Handle and LoRa Connectors

Focuses on the robust antenna handle and external connectors for enhanced range.

Mass Storage and Text-to-Speech (X20RS)

Describes the 8GB flash storage and TTS function for X20RS models.

Dual-Side Haptic Gimbal Feedback (X20RS)

Explains the independently configurable vibration feedback on the gimbals.

Adjustable MC20R Gimbals

Details the easy travel-adjustable MC20R gimbals with degree and panel adjustments.

Overview and Specifications

Transmitter Component Layout

Identifies and illustrates key buttons, sticks, ports, and other components of the transmitter.

Technical Specifications

Lists detailed technical data including dimensions, weight, operating voltage, and system.

Key Features and Operation

Product Features Summary

Lists the main capabilities, improvements, and unique selling points of the transmitters.

USB-C Battery Charging Guide

Explains the process for charging the 2S Li-battery via USB-C and its LED indicators.

Navigation Control Usage

Describes how to use the physical navigation controls for system interaction.

ETHOS Suite and Model Creation

ETHOS Suite Functionality Overview

Explains the purpose and capabilities of the ETHOS Suite software for radio management.

Step-by-Step Model Creation

Provides a detailed guide on creating and configuring new models within the ETHOS system.

Internal Module Setup

Enabling the Internal RF Module

Covers the process of enabling and setting the internal RF module's operating modes.

Configuring Channel Range Settings

Explains how to set and adjust the channel range for the internal RF module.

Model Binding and Registration

Setting Model ID for Receivers

Details how the system assigns and how to set the Model ID for receiver association.

Receiver Registration Process

Outlines the steps required to register a receiver with the transmitter for connection.

Automatic Binding (Smart Match)

Explains the procedure for automatic receiver binding using the Smart Match feature.

RF Settings and Range Check

Adjusting RF Power Levels

Details how to select and adjust RF power options for optimal control range.

Pre-Flight Range Check Procedure

Describes the essential steps for conducting a pre-flight range check for safety.

Text-to-Speech (TTS) Function Setup

Guides on creating special functions to utilize the Text-to-Speech capability.

Failsafe Configuration and Compliance

Failsafe Modes and Customization

Explains the different failsafe modes (No Pulse, Hold, Custom) and their setup.

Failsafe Notes and SBUS Limitations

Provides important notes on failsafe behavior and SBUS port restrictions.

FCC Compliance Statement

States that the equipment has been tested and found to comply with FCC limits.

Flying Safety Guidelines

General Safety Precautions and Maintenance

Covers essential safety warnings, regular maintenance, and general precautions.

Battery Safety and Usage Recommendations

Offers advice on battery care, usage duration, and charging practices.

Flying Field Etiquette and Procedures

Details recommendations for flying fields and proper transmitter power sequencing.

Operational Best Practices and Updates

Antenna and Weather Handling Tips

Provides guidance on antenna positioning and precautions for flying in adverse weather.

Software and Firmware Update Guide

Explains how to update the transmitter's software and firmware via USB or SD card.