Futaba 4YF_c1 4-Channel FM Radio System S3003 Pack [4YF_c1]

Futaba 4YF 4-Channel FM 40MHz/ R136F/ 3xS3003

Price:

£74.25

Brand:

Futaba

Model:

4YF_c1

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R/C Models - System - Transmitter - Car Transmitters

Accurate Inputs with Futaba 4YF 4-Channel FM Radio

The Futaba 4YF_c1 4-Channel FM Radio System is aimed at enthusiasts who value stable control and predictable servo response. This set contains three S3003 ball bearing servos to improve motion smoothness, while the R127DF narrow-band dual conversion receiver helps maintain clean signal reception under typical field conditions.

Core Features and Setup

Channel-by-channel servo reversing to match different servo orientations and link setups.
Power and servo reverse switches positioned to limit accidental operation while handling the transmitter.
Onboard LED battery meter for quick pre-run checks.
Trainer toggle with spring action for easy instructor takeover during lessons.
Textured gimbal tops give a firmer grip for precise stick inputs.

Specifications

Transmitter Modulation: FM
Power Requirement: 9.6V NiCd battery
Current Drain: 180mA
Receiver Narrow Band: 20kHz
Intermediate Frequency: 1st IF: 10.7MHz, 2nd IF: 455kHz
Receiver Power Requirements: 4.8 to 6.0V
Servo Speed: 0.23 sec/60° at 4.8V, 0.19 sec/60° at 6.0V
Servo Torque: 44.3 oz-in (3.2kg-cm) at 4.8V, 56.8 oz-in (4.1kg-cm) at 6.0V

Well suited for hobbyists updating older FM gear, this system combines reliable reception with smoother servo behaviour for cleaner control inputs.

How do I set servo direction on this system?

Use the dedicated servo reversing switches on the transmitter to change direction per channel without changing linkages on the model.

What should I check if the receiver loses range?

Inspect antenna routing and receiver power, replace aged batteries, and confirm the transmitter and receiver frequencies match for best range.

Are these servos suitable for high-stress applications?

S3003 servos are reliable for many applications but consider metal-geared or higher torque servos for heavy-duty or competitive use.

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