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About OTA function

For TWIN X Lite as an example, go to the [File manager], and select the FW, press the enter button, select [Flash 

RX by int.OTA].Power on the receiver, select the RX, go to the [ENTER], complete the flash process, the transmit-

ter will display [Success]. Wait for 3 seconds,the receiver works properly at the moment.

Note: Please do not do the binding operation in the near range while the firmware upgrading in progress.

Note: Update the firmware after the receiver getting registered (OTA).

 

Version

1.0

Instruction Manual for FrSky TW GR6 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 TW GR6 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

TWIN series TW MX receiver features a new stable TW protocol which benefits from simultaneously integrating dual 

active 2.4G frequency bands. The TW active-active protocol is different from the general active-standby redundancy 

solutions (where one receiver takes over signal control only when the other is in Failsafe mode), with the TW 

protocol, dual 2.4G frequency bands are active on the TW series receiver at the same time. 

This receiver is designed for rc users who want to benefit from resilience and long range in their radio communica-

tions, typically tens of kilometers is achievable. The TW MX receiver is light weight and its smaller size occupies less 

space which makes it very suitable for users who have constraints with limited installation space and weight.

As a micro receiver, the TW MX receiver is equipped with 2x 2.4G antennas. The signal output ports include one 

SBUS output channel and 4 PWM output channel ports. TW MX receiver also supports telemetry functions through 

FBUS / S.Port. By setting the TW MX to use FBUS protocol in the ETHOS system, the signal control and telemetry 

can be connected to any device that supports FBUS protocol through only one line to achieve bidirectional transmis-

sion, also simplifying the model build using fewer wires. 

In addition, TW MX also supports 4ms race mode with ultra-low latency. When combining race mode with TW series 

resilient dual 2.4G solution, racers have a fast, stable, and reliable signal in racing competitions, without fear of 

signal loss due to interference.

How to switch the S.Port/F.Port/FBUS (F.Port2)

Enter into the Set-Options, click the Telem.Port, and select S.Port/F.Port/FBUS (F.Port2).

How to switch SBUS channel mode

Enter into RX Settings, click [SBUS], then select SBUS-16 mode or SBUS-24 mode.

How to enter into the Race mode (down to 4ms)

Enter into Model-RF system, select the Channel Range as CH1-CH8. Click [Switch Positions] and select a switch to 

start the race mode.

LED state

Green LED

-

On
Off

Red LED

Off
Off
On

Status

LoRa

FSK

Failsafe

Blue LED

On

-

Off

Registration & Automatic binding

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

1. For TWIN X Lite as an example, enter into the Model, select RF System, turn on the internal module, select status 

[ON] and TW 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 into 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 or BLUE LED will keep lit. Then the transmitter displays [Bind successful].

Note: Once the receiver is registered, the button is not needed anymore in the binding process.

Specifications

●  Frequency: Dual 2.4GHz

●  Dimension: 38.1*14.6*9.5mm (L*W*H)

●  Weight: 5g

●  Operating Voltage: 3.5-10V (Please ensure the supplied voltage exceeds 2.8V during the use.)

●  Operating Current: 60mA@5V

●  Variometer Measurement Range

    – Altimeter Range & Resolution: -700m to 10000m & 0.1m

    – Vertical Speed Range: ±10m/s

●  Voltage Measurement Range via AIN2 (External device): 0-3.3V

●  Antenna connector: IPEX4

●  Compatibility: TWIN series Radio & RF module in TW mode.

Features

●  

Simultaneous working dual 2.4G TW mode

●  

High-precision variometer sensor

●  

Black-Box function

●  

4ms race mode with telemetry

●  

Long control range (Range varies based on the RF Power settings.)

●  

Over-The-Air (OTA) FW update

●  

6 PWM channel ports

●  

SBUS Out (Supports 16CH / 24CH mode)

●  

FBUS / S.Port

●  

Inverted S.Port

Overview

BOT 

14.6mm

28mm

TOP 

1

2

3

4

5

FBUS

 / S.Port

 S.P

T    GR6

6/24CH Telemetry & Variometer

SBUS  OUT

AIN2

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