pengenalan
The FUTABA R7308SB is a high-performance 2.4GHz FASSTest bidirectional communication system receiver, designed for aircraft models. It features S.BUS2 and S.BUS ports, along with 8 channels for conventional systems, offering advanced telemetry capabilities and simplified wiring for compatible systems.
Video: Selesaiview of the Futaba R7308SB receiver's features and design.
Spesifikasi
| Ciri | Perincian |
|---|---|
| Kekerapan Menerima | 2.4GHz FASSTest Transceiver System |
| Keperluan Kuasa | 3.7V - 7.4V (or electrically adjustable/independent BEC) |
| Voltage Julat | 3.5V - 8.4V |
| Kerugian Semasa | 75mA |
| Dimensi | 40mm x 25mm x 15mm (0.98 x 1.53 x 0.56 inci) |
| Berat badan | 11g (0.39oz) |
| Saluran | S.BUS2 / S.BUS Port and 8 Channels for Conventional System |
| Jenis Antena | Sleeve antenna, dual diversity system |
| bahan | Bahan Komposit |
| Umur Disyorkan | 14+ tahun |
| Bateri Termasuk | Tidak |
The R7308SB receiver is compatible with FUTABA 14SG, 16SZ, 18SZ, 18MZ, and other FASSTest remote controls.

Image: The R7308SB receiver weighing 11 grams.

Image: Dimensions of the R7308SB receiver (40x25x15mm).
Persediaan
Pemasangan Antena
The R7308SB has two antennas to maximize signal reception and provide a diversity antenna system. Ensure the two antennas are placed at 90 degrees to each other for optimal performance.
- You must leave 30mm at the tip of the antenna fully exposed. If the exposed antenna should be secured so that it cannot move around, bend back inside your aircraft.
- Jangan potong atau ikat wayar antena penerima.
- The antennas must be mounted in such a way as to assure they are strain relieved.
- Jauhkan antena dari motor, ESC dan sumber hingar lain yang anda boleh.
- Jangan sentuh antena kepada logam, karbon atau bahan pengalir lain.

Image: Diagram illustrating proper antenna installation at 90 degrees and general precautions.
Sambungan Kuasa
The receiver requires a power supply of 3.7V to 7.4V. It is recommended to use an ESC (Electronic Speed Controller) to regulate the power supply to avoid direct battery connection, which could lead to reverse polarity damage. The voltagjulat e ialah 3.5V hingga 8.4V.
Definisi Penyambung
Generally, the signal line is located near the positive terminal, with the positive terminal in the middle and the negative terminal on the ground. Do not connect a connector as shown in the figure to avoid short-circuiting.
Pemasangan Biasa
The R7308SB supports S.BUS2 and S.BUS for simplified wiring, especially with systems like Microbeat, HC3X, and VBar. The diagram below illustrates a typical setup.

Image: Typical installation diagram showing connections for servos, battery, switch, HUB, S.BUS2 port, and various sensors.
Arahan Operasi
Linking the Receiver to the Transmitter
To establish communication between the R7308SB receiver and your FASSTest compatible transmitter, follow these steps:
- Turn on the receiver. (Transmitter is always OFF)
- Press and hold the SW (switch) for 5 seconds to link. The LED will blink RED β ORANGE β GREEN β ORANGE (slow blink).
- Release the switch. The LED will blink ORANGE once.
- Press the switch again. The LED will blink ORANGE twice.
- Press and hold the SW. The LED will blink ORANGE.
- Release the SW. The LED will turn solid ORANGE.
- Matikan kuasa penerima.
After restarting, the LINK LED should light up solid ORANGE, indicating a successful link.
Sistem Pautan Rx Dwi
For dual receiver setups in an aircraft, one receiver can become unable to communicate, while the other receiver remains operational. This system ensures redundancy.
- Turn on the receiver. (Transmitter is always OFF)
- Tekan dan tahan SW selama 5 saat atau lebih.
- Release the switch here.
- Press SW once more to return to flashing orange once.
- Tekan suis.
- Blinks GREEN twice.
- Tekan dan tahan SW.
- Blinks ORANGE.
- Release SW.
- Solid ORANGE.
In Dual Rx Link mode, the SB2/RX port is for reception only. Use CH mode B, C, D, F, G mode for S.BUS output and S.BUS2 input/output.

Image: Instructions for setting up the Dual Rx Link System and a connection example.
Telemetry Mode (FASSTest 12CH)
The R7308SB supports FASSTest 12CH telemetry. You can switch telemetry ON or OFF.
- Telemetry OFF: Turn on the receiver (transmitter OFF). Press SW once more to return to flashing orange. Press SW. Blinks ORANGE twice. Press and hold SW. Blinks ORANGE. Release SW. Solid ORANGE.
- Telemetry ON: Turn on the receiver (transmitter OFF). Press SW once more to return to flashing orange. Press SW. Blinks ORANGE twice. Press and hold SW. Blinks ORANGE. Release SW. Solid ORANGE.
After linking, the receiver will transmit telemetry data to the transmitter. The transmitter will display the telemetry of the main receiver. For a second-linked receiver, the transmitter will show 'Telemetry OFF' for the second link.
Mod Saluran
R7308SB mampu menukar peruntukan salurannya seperti yang diterangkan dalam jadual di bawah. Ini amat penting apabila menggunakan penerima dalam mod dwi penerima. Lihat manual operasi pemancar anda untuk butiran lengkap tentang pengendalian dalam mod dwi penerima.

Image: Detailed instructions for linking, telemetry mode settings, and a table of channel modes.
Penyelenggaraan
- The R7308SB receiver should be protected from vibration by foam rubber, Velcro, or similar mounting methods.
- Protect from moisture and extreme temperatures.
- Regularly inspect all connections for secure fit and signs of wear.
- Pastikan penerima bersih dan bebas daripada habuk dan serpihan.
Menyelesaikan masalah
Status Petunjuk LED
| Status | LED LINK |
|---|---|
| Tiada penerimaan isyarat | Pepejal Merah |
| Menerima Isyarat | Pepejal Hijau |
| Menunggu pautan | Start β Green/Red (1 second) |
| Ralat tidak dapat dipulihkan (EEPROM, dsb.) | Kejap silih berganti |
In Dual Rx Link Mode
| Status | LED MODE |
|---|---|
| External receiver is not connected or not connected (S.BUS signal not received) | Pepejal Merah |
| S.BUS signal received from external receiver (also received by external receiver) | Pepejal Hijau |
Link Precautions
- Do not perform the linking procedure while the motor's main switch is ON or the engine is operating, as it may result in serious injury.
- When the linking is complete, please cycle the receiver power to ensure the receiver is properly linked to the transmitter.
- Jika penerima R7308SB sebelum ini dipautkan kepada pemancar lain, pastikan pemancar tidak beroperasi semasa memautkan penerima kepada pemancar baharu.
Petua pengguna
- For simpler wiring, especially with complex setups, utilize the S.BUS2 system as it only requires one data cable to connect to compatible flight controllers like Microbeat, HC3X, or VBar.
- Ambil advantage of the telemetry features by connecting optional telemetry sensors to the S.BUS2 port. This allows direct display of critical data like power voltage on your remote control, enhancing flight safety and monitoring.
- Always ensure proper power supply through an ESC or independent BEC to prevent damage from reverse polarity.
Waranti dan Sokongan
For warranty claims or technical support, please contact the original seller or the manufacturer directly. Keep your proof of purchase for any warranty-related inquiries.





