FUTABA TM-18 High Frequency Headset Kit User Manual

1. Introduction

The FUTABA TM-18 High Frequency Headset Kit is an advanced radio control system designed to enhance the reliability and performance of your RC aircraft. This kit utilizes AdRCSS 920MHz frequency band spread-spectrum communication technology, providing a robust backup system for your existing 2.4GHz setup. It includes the TM-18 RF Module and the R9001SB Receiver, offering a maximum of 16 channels depending on your transmitter settings.

The system is engineered to prevent interference through a unique ID code and features a fault protection function for critical channels, ensuring safer operation of your models.

2. Safety Information

Please read and understand all instructions before operating this product. Failure to do so may result in damage to the product, property, or serious injury.

• Always ensure proper power supply. Do not use dry batteries for the R9001SB receiver.
• Verify that the BEC power supply capacity meets the requirements of all connected equipment.
• Perform range checks and fail-safe tests before each flight.
• Ensure all connections are secure and correctly polarized.
• Keep the module and receiver away from moisture, extreme temperatures, and strong vibrations.
• Only use genuine Futaba components and accessories.

3. Package Contents

The FUTABA TM-18 High Frequency Headset Kit typically includes the following items:

• TM-18 RF Module
• R9001SB Receiver
• CRSF Signal Connection Cable
• Double-sided Adhesive Tape
• T32MZ Installation Bracket

4. Specifications

4.1. TM-18 RF Module

4.2. R9001SB Receiver

5. Setup Instructions

5.1. Transmitter Compatibility and Setup

The TM-18 RF Module is compatible with the following Futaba transmitters:

• T32MZ WC
• T32MZ
• T18SZ
• T16IZ
• T16IZS

Specific Setup Notes:

• T32MZ WC / T32MZ: The TM-18 RF Module can be used directly by connecting it to the CRSF interface.
• T18SZ, T16IZ, T16SZ, T12K: For these transmitters, the CRSF mode must be enabled in the transmitter settings. Please note that when CRSF mode is enabled, S.BUS servo settings cannot be performed.
• T16SZ and T12K: These transmitters require an additional external power supply for the TM-18 RF Module, as they do not provide power through their CRSF interface.

5.2. TM-18 RF Module Installation on T32MZ

For T32MZ transmitters, use the provided installation bracket and double-sided adhesive tape to secure the TM-18 RF Module.

1. Align the claws of the installation bracket with the three grooves on the TM-18 RF Module.
2. Attach the bracket firmly to the module.
3. Apply the double-sided adhesive tape to the bracket or the designated area on the transmitter.
4. Carefully position and attach the TM-18 RF Module assembly to your T32MZ transmitter as illustrated below.

5.3. R9001SB Receiver Installation and Wiring

The R9001SB receiver features a dual antenna diversity design for improved signal reception. It supports S.BUS2, S.BUS, and conventional 3-channel outputs.

Power Supply: The receiver requires a power supply between 4.8V and 7.4V. It is crucial to use a BEC (Battery Eliminator Circuit) power supply and ensure its capacity is sufficient for all connected equipment. Do not use dry batteries to power the R9001SB receiver.

Wiring Example for Aircraft with Dual Rx Link:

As shown in Figure 5, connect the AdRCSS Receiver (R9001SB) and your primary receiver (with Dual Link Rx) to the flight controller or directly to servos as per your aircraft's configuration. Ensure all servo connections are correct and secure.

6. Operating Instructions

6.1. AdRCSS 920MHz System Overview

The AdRCSS 920MHz system acts as a reliable backup for your 2.4GHz communication. In normal operation, your aircraft will primarily use the 2.4GHz signal. If the 2.4GHz reception experiences failure, the system will seamlessly switch to the 920MHz signal, maintaining control.

Note on Communication Speeds: Due to inherent differences in communication speeds between various systems, you might observe slight variations in operation immediately after a system switch (e.g., from 2.4GHz to 920MHz). This is considered normal behavior and does not indicate a malfunction.

6.2. Fail-Safe Function (F/S)

The R9001SB receiver includes a fail-safe function, limited to 3 channels. When the fail-safe (F/S) is triggered (e.g., due to signal loss), the preset F/S channel will automatically move to a safe, pre-programmed position. All other channels will enter a locked (Hold) state, maintaining their last commanded position until signal is restored.

It is highly recommended to configure your fail-safe settings appropriately for your aircraft type and operational preferences to ensure maximum safety in case of signal interruption.

7. Maintenance

• Cleaning: Use a soft, dry cloth to clean the module and receiver. Do not use solvents or abrasive cleaners.
• Storage: Store the components in a cool, dry place, away from direct sunlight and extreme temperatures.
• Connections: Regularly check all wiring and connectors for signs of wear, corrosion, or loose connections.
• Antennas: Ensure receiver antennas are properly positioned and free from damage. Avoid bending them sharply.

8. Troubleshooting

8.1. No Signal / Intermittent Signal

• Check Connections: Ensure all cables (CRSF signal, power) are securely connected to both the TM-18 module and the receiver.
• Power Supply: Verify that the receiver is receiving adequate power (4.8V-7.4V) and that the BEC capacity is sufficient. Remember, no dry batteries.
• Antenna Placement: Ensure receiver antennas are positioned correctly and are not obstructed by carbon fiber or metal parts of the aircraft.
• Transmitter Mode: Confirm that CRSF mode is enabled on compatible transmitters (T18SZ, T16IZ, T16SZ, T12K).
• Range: Perform a ground range check to ensure proper operation before flight.

8.2. Fail-Safe Triggering Unexpectedly

• Signal Interference: Check for potential sources of 2.4GHz or 920MHz interference in your operating environment.
• Receiver Placement: Ensure the receiver is not too close to high-current components (ESCs, motors) that could generate electrical noise.
• Power Fluctuations: Verify stable power delivery to the receiver.

8.3. S.BUS Servo Settings Not Working (T18SZ, T16IZ, T16SZ, T12K)

• This is expected behavior when CRSF mode is enabled on these specific transmitters. If S.BUS servo settings are required, you may need to temporarily disable CRSF mode or use a different setup configuration.

9. User Tips

• Dual Receiver Link: For optimal reliability, always use the AdRCSS 920MHz system in conjunction with a primary 2.4GHz receiver that supports dual receiver link systems (e.g., R7308SB, R7208SB, FDLS-1, DLPH-1, DLPH-2). This configuration provides the most robust signal redundancy.
• Antenna Orientation: Experiment with different antenna orientations for both the 2.4GHz and 920MHz receivers to achieve the best possible signal reception in various flight attitudes. Avoid placing antennas parallel to each other.
• Power Management: Pay close attention to your aircraft's power system. An unstable or insufficient power supply is a common cause of RC system issues.
• Firmware Updates: Periodically check the Futaba website for any available firmware updates for your TM-18 module and R9001SB receiver to ensure you have the latest features and bug fixes.

10. Warranty and Support

For warranty information, technical support, or service inquiries, please contact your authorized Futaba dealer or the official Futaba service center in your region. Keep your proof of purchase for any warranty claims.