Futaba 4GRS 4-Channel T-FHSS Telemetry System

Tower Stock# LH6816  •  Manufacturer Stock# FUTK4220
Futaba 4GRS 4-Channel T-FHSS Telemetry System (large view)
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Notes from our tech department:
This is the Futaba T-FHSS 4GRS 2.4GHz 2-Stick 4-Channel Radio
with the R304SB 4-Channel Telemetry Receiver.
Servos Not Included


Ideal for crawlers, scale racers, competition boaters and racers
Dual ESC mixing for locking diffs, four wheel steering and
independent brake mixing are ideal for extreme off-roading
External voltage, temperature, and RPM display (sensors not included
and must be purchased separately)
Gyro mixing, and programmable mixing
MC link function
40 model memory with 10 character model naming
Anti-skid braking system (ABS)
Throttle speed, cut, acceleration, EXP, and neutral selection
Jog dial button layout for easy menu navigation
Fail safe on all channels
Steering speed and EXP
Dual rate, idle up and EPA (End Point Adjustment)
Function select dial/switch
Data transfer
Timer (up/down/lap)
Throttle and steering stick tension and angle adjustments
Ball bearing equipped throttle and steering sticks
One year limited warranty though Hobby Services beginning at date of


4GRS Transmitter
R304SB 4-Channel Telemetry Receiver, FUTL7680
On/Off Switch Harness


AA Batteries: Four for transmitter
Servos of modeler's choice


Power Requirement: Four AA dry cell batteries (6V)
Current Drain: 150mA or less
Transmission Antenna: 1/2 di-pole

Power Requirement: 4.8 - 7.4V battery (dry cells cannot be used)
Receiving Frequency: 2.4GHz
System: T-FHSS (auto detection) with SBUS2 port
Dimensions: 1.38 x 0.91 x 0.33" (35.1 x 23.2 x 8.5mm)
Weight: 0.23oz (6.6g)


Optional sensors include;
SBS-01V External Voltage Sensor, FUTM0855
SBS-01RM Magnetic RPM Sensor, FUTM0852
SBS-01TE EP Temp Sensor, FUTM0856
For the optional NiMH Transmitter Battery, order FUTM1482
For the optional throttle ratchet spring, call Futaba Support
jxs 02/04/15

See Tower Catalog page 152.
Easy RC: Radio Systems
Review #1
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