Description
Overview
The Futaba R304SB is a compact 4-channel T-FHSS 2.4GHz receiver with S.BUS2 and telemetry support for surface RC models. It is designed for Futaba T-FHSS transmitters and gives RC car and truck owners a reliable receiver option for vehicles that need essential control channels plus telemetry capability.
Its low-profile size and light weight make it easy to fit into tight receiver boxes, touring car chassis, buggies, crawlers, boats, and other surface models. The R304SB supports normal and high-speed operation modes, with important servo compatibility notes for high-speed use.
For drivers expanding a Futaba radio system across multiple vehicles, this receiver is a practical add-on or replacement receiver. It provides stable signal performance, S.BUS2 connectivity, and a 4.8V to 7.4V operating voltage range suitable for many surface electronics layouts.
Key Features
- 4-channel Futaba T-FHSS receiver for surface models
- 2.4GHz T-FHSS communication system
- S.BUS2 port for telemetry sensor connection
- Built-in telemetry support for compatible Futaba transmitters
- Compact, low-profile receiver body
- Normal mode and high-speed mode support
- Wide 4.8V to 7.4V operating voltage range
- Designed for model car and surface RC applications
Performance Benefits
- Compact dimensions make the receiver easier to install in crowded chassis and sealed receiver boxes.
- T-FHSS telemetry lets compatible transmitters display running data when optional sensors are connected.
- Four channels cover steering, throttle, and common auxiliary functions for many surface vehicles.
- High-speed mode can improve response when used with compatible Futaba digital servos and electronics.
- The lightweight 6.6g design helps minimize electronics weight in race builds.
Usage Notes
- Use only with compatible Futaba T-FHSS transmitters; it is not compatible with Futaba S-FHSS, FHSS, FASSTest, FASST, or T-FHSS Air systems.
- When using high-speed mode, use Futaba digital servos or compatible brushless ESC equipment; analog servos may cause servo trouble.
- Do not use dry batteries for receiver power.
- Mount with foam or vibration protection and keep the receiver dry with good ventilation.
- Best for 1:10 and 1:8 RC cars, trucks, crawlers, boats, buggies, touring cars, and other surface models using Futaba T-FHSS.
- After linking, cycle receiver power and confirm correct steering and throttle response before connecting motor power or starting an engine.
Technical Specs
- Channels: 4
- System: Futaba T-FHSS 2.4GHz
- Telemetry: Supported through S.BUS2 with optional sensors
- Modes: Normal mode and high-speed mode
- Size: 35.1 x 23.2 x 8.5mm
- Weight: 6.6g
- Operating voltage: DC 4.8V to 7.4V
- Application: Surface models / model cars
Fitment
- Universal scale surface RC models using compatible Futaba T-FHSS transmitters
What's Included
- One Futaba R304SB T-FHSS 4-channel telemetry receiver
Summary
The Futaba R304SB is a reliable compact receiver for surface RC drivers using T-FHSS transmitters. It is a smart choice when you need four channels, S.BUS2 telemetry support, low weight, and easy installation in a car, truck, crawler, or boat.