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Version

1.0

Instruction Manual for FrSky TD R18 Receiver

                                              FrSky Electronic Co., Ltd.                    www.frsky-rc.com                    Contact us : [email protected]  

Add: F-4,Building C, Zhongxiu Technology Park, No.3 Yuanxi Road, Wuxi, 214125, Jiangsu, China    Technical Support: [email protected] 

Version

1.0

Instruction Manual for FrSky TD R18 Receiver

                                              FrSky Electronic Co., Ltd.                    www.frsky-rc.com                    Contact us : [email protected]  

Add: F-4,Building C, Zhongxiu Technology Park, No.3 Yuanxi Road, Wuxi, 214125, Jiangsu, China    Technical Support: [email protected] 

Introduction

Neither like other FrSky 2.4G receivers nor 900M receivers,the Tandem dual-band series receivers work simultane-

ously at both 900M and 2.4G frequencies that means it can give not only low latency signal control but long control 

range with an enhanced level of high reliability and anti-interference performance.

The Tandem series receivers adopt the triple antenna design that can give the multi-directional coverage as wide 

as possible for the remote signal. The 900M antenna comes with a newly designed small form factor, but it has the 

equivalent high-performance as the original 900M antenna.

The data (Power & Signal related) under unusual status during the flight can be recorded by Tandem receivers 

through a built-in black box module, and TD R18 can additionally save the complete and long-term data (Control & 

Flight Attitude data log, etc.) by SD card through the external module. TD R18  also provides a socket that can be 

used to connect the switch panel to enable the built-in Power Switch function.

The configurable 18 channel ports are a big feature of TD R18, each channel port can be assigned as PWM, SBUS, 

FBUS, or S.Port. With the FBUS protocol, the Tandem series receivers can open up the possibility of seamlessly 

pairing with multiple telemetry devices (Neuron ESC, Advance Sensors, etc.) as well as simplifying the builds setup.

Features

●  

Simultaneous working dual-band TD mode 

●  

Triple antenna design for multi-directional coverage

●  

Black Box function   

●  

Built-in Power Switch

●  

Built-in current and voltage sensors

●  

Race Mode with Telemetry

●  

Long control range (up to 50KM - 100KM)

●  

Over-The-Air (OTA) FW update

●  

18 Configurable Channel Ports

     - CP1: PWM / SBUS Out / FBUS / S.Port / SBUS In (Redundancy Func.)

     - CP2-18: PWM / SBUS Out / FBUS / S.Port

LED state

Green LED

On

Flash

On
On
On
Off

Red LED

On

Flash

On
Off
Off
On

Status

Register

Register successfully

Bind

Bind successfully
Working normally

Failsafe

Blue LED

Off
Off
Off

Flash
Flash

Off

Registration & Automatic binding

Follow the steps below to finish the Registration & binding procedure: 

1. For TANDEM X20 as an example,enter into the Model, select RF System, turn on the internal module, select 

status [ON] and TD MODE(Type). You can select Internal / External antenna and the power as you need, then 

select [Register].

2. Connect the battery to the receiver while holding the button on the receiver. The RED LED and GREEN LED on 

the receiver will be on, indicating the [Reg] status.

3. When it shows the Register ID, RX name and UID, click [Register]. The RED LED and GREEN LED on the 

receiver will flash, and the transmitter displays [Registration OK ].

4. Turn off the receiver.

5. Move the cursor to select any one of the 3 receivers [Bind].

6. Connect the battery to the receiver.

7. Select the RX, the GREEN will keep lit and the BLUE will flash. Then the transmitter displays [Bind successful].

Specifications

●  

Frequency: 2.4GHz & 900MHz 

●  

Dimension: 53*40*16mm (L*W*H)

●  

Weight: 27g

●  

Operating Voltage: 4-10v (Recommend 2S Li batteries)

●  Operating Current: ≤185mA@5V

●  

Compatibility: Tandem series transmitter & TD protocol capable RF module

●  

Dual XT30 Power Input Connector

●  

Triple 2.4G/900M Antenna 

     - 1* Interior 2.4G chip antenna

     - 1* External 2.4G antenna (IPEX1)

     - 1* Newly designed 900M antenna (Small but with equivalent high-performance as the original 900M antenna) 

Overview

53mm

9 8 7 6 5 4 3 2

10 11 12 13 14 15 16 17 18

T D   R 1 8

1

REG

Button

FBUS

CH9 CH8 CH7 CH6 CH5 CH4 CH3 CH2 CH1

CH10 CH1

1

CH12 CH13 CH14 CH15 CH16 CH17 CH18

2.4G Antenna

2.4G Antenna

900M Antenna

How to configure channel ports

1. For TANDEM X20 as an example, please select RF System, click [RX1 WD18R]-[Set]-[Options].

2.You will enter into RX Settings,then function definition of every single pin (pin1-pin18) could be set.

- pin1: Smart Port/ SBUS OUT/ FBUS / SBUS In

- pin2-18: Smart Port/ SBUS OUT/ FBUS

16mm

40mm

Switch

UAR

T+AIN

Switch

GND

VIN

S

VO

AIN

GND

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