Introduction
TWIN series TW R8/GR8 receiver features a new stable TW protocol that benefits from simultaneously integrat-
ing 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 communi-
cations, typically up to tens of kilometers is achievable. TW GR8 receiver features an upgraded high-precision
variometer that gives pilots quick, accurate altitude and vertical speed data, and is ideal for any type of glider pilot.
The TW R8/GR8 receiver is equipped with 2x2.4G antennas. The signal ports include both SBUS In & Out
channel and 8 PWM output channel ports. It also supports telemetry functions through FBUS /S.Port. By setting
the TW R8/GR8 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 transmission, also
simplifying the model build using fewer wires.
Overview
10mm
Specifications
● Frequency: Dual 2.4GHz
● Dimension: 5 4*20*10mm (L*W*H)
● Weight: 9 .8g
● Operating Voltage: 3.5-12V (Please ensure the supplied voltage exceeds 2.8V during the use.)
● Operating Current: 80mA@5V
● Variometer Measurement Range ( TW GR8 )
– Altimeter Range & Resolution: - 700m to 10000m & 0.1m
– Vertical Speed Range: ±10m/s
● Voltage Measurement Range via AIN2 (External device): 0-36V
● Antenna Connector: IPEX4
● Compatibility: TWIN series Radio & RF module in TW mode.
Features
● Simultaneous working dual 2.4G TW mode
● High-precision variometer sensor (TW GR8)
● Black-Box function
● Long control range (Range varies based on the RF Power settings.)
● Over-The-Air (OTA) FW update
● 8 PWM channel ports
● SBUS Out port (Supports 16CH / 24CH mode)
● SBUS In port (Supports Signal Redundancy)
● FBUS / S.Port
FrSky Electronic Co., Ltd.
Add: F-4,Building C, Zhongxiu Technology Park, No.3 Yuanxi Road, Wuxi, 214125, Jiangsu, China Technical Support: sales4tech@gmail.com
Instruction Manual for FrSky TW R8/GR8 Receiver
54mm
LoRa
REG
BUTTON
T
R8
8 / 2 4 C H T e l e m e t r y
FSK
www.frsky-rc.com
REG
BUTTON
T
GR8
8 / 2 4 C H T e l e m e t r y & V a r i o m e t e r
Contact us : frsky@frsky-rc.com
Version
1.0
LoRa
FSK
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