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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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.

Use the dedicated servo reversing switches on the transmitter to change direction per channel without changing linkages on the model.
Inspect antenna routing and receiver power, replace aged batteries, and confirm the transmitter and receiver frequencies match for best range.
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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