Futaba R7208SB FASSTest-2.4GHz Receiver

Introduction

Thank you for purchasing a Futaba R7208SB FASSTest-2.4GHz compatible receiver. The R7208SB receiver features bi-directional communication with a FASSTest Futaba transmitter using the S.BUS2 port. This allows for an impressive array of telemetry sensors to be utilized. It also includes standard PWM output ports (1-8ch) and S.BUS output ports. The R7208SB can also be switched to the Dual Rx Link System, which ensures safety by mounting two FASSTest receivers on one aircraft.

Usage Precautions

• Analog servos cannot be used with the R7208SB in the FASSTest 12CH mode.
• Do not connect to Extra Voltage before turning on a receiver.
• Warning: Changes or modifications not approved by the party responsible for compliance could void the user's authority to operate the equipment.
• The R7208SB receiver should be protected from vibration by foam rubber, Velcro, or similar mounting methods.
• Protect from moisture.
• Keep away from conductive materials to avoid short circuits.
• Do not cut or bundle the receiver antenna wire.
• The antennas must be mounted in such a way to assure they are strain relieved.
• Keep the antenna as far away from the motor, ESC, and other noise sources as you possibly can.
• Do not touch the antenna to metal, carbon, or other conductive material.
• Be sure that the two antennas are placed at 90 degrees to each other. The R7208SB has two antennas. To maximize signal reception and promote safe modeling, Futaba has adopted a diversity antenna system, allowing the receiver to obtain RF signals on both antennas for problem-free flight.

Antenna Installation

General: Do not bend the antenna part. Gently bend the coaxial cable part. The antenna should be secured so that it cannot move around or back inside of the aircraft.

Antenna Installation for Carbon Fuselage

You must leave 30mm at the tip of the antenna fully exposed. The exposed antenna should be secured so that it cannot move around or back inside of your aircraft.

Connector Precautions

Be careful of connector insertion: Do not connect an S.BUS servo / gyro to the S.BUS2 connector.

Linking Precaution: Do not perform the linking procedure while the motor's main power is connected or the engine is operating, as it may result in serious injury.

When the linking is complete, please cycle the receiver power and ensure the receiver is properly linked to the transmitter.

Power on the system in this order: Transmitter first, followed by the receiver.

If the R7208SB receiver was previously linked to another transmitter, make sure that transmitter is not operating while linking the receiver to the new transmitter.

Incorrect Connection Example: Do not insert a switch or battery in the manner shown in the diagram. It will short-circuit if connected this way. A short circuit across the battery terminals may cause abnormal heating, fire, and burns. ? DANGER

Linking to the Transmitter

FASSTest is a bidirectional communication system between the R7208SB receiver and FASSTest capable transmitters. Multiple optional telemetry sensors may be connected to the S.BUS2 on the receiver, and that data is in turn displayed on the transmitter.

1. Bring the transmitter and the receiver close to each other, within 20 inches (half meter).
2. Turn on the transmitter. Place the transmitter into the receiver linking mode.
3. Turn on the receiver.
4. The receiver will wait for the linking process to begin for 2 seconds. Following that, it will return to the normal operation mode.
5. When the LED of the receiver changes from blinking red to solid green, linking is complete. (A link waiting state is ended in 3 seconds.)

Note: Refer to the transmitter's operation manual for complete details on how to place the transmitter into the linking mode.

Important: If there are many FASSTest systems turned on in close proximity, your receiver might have difficulty establishing a link to your transmitter. This is a rare occurrence. However, should another FASSTest transmitter/receiver be linking at the same time, your receiver could link to the wrong transmitter. This is very dangerous if not noticed. To avoid the problem, we strongly recommend that you double-check whether your receiver is really under control by your transmitter.

System Type Change: If the System Type of the transmitter is changed, the receiver will need to be re-linked to the transmitter.

Telemetry System

The telemetry function of the main receiver can be used. Sub-receiver telemetry function is not available.

Channel Modes

The R7208SB is capable of changing its channel allocations as described in the table below. This is especially important when using the receiver in a dual receiver mode. See your transmitter operation manual for complete details on operating in the dual receiver mode.

How to Change Channel Mode

1. Turn on the receiver. [Transmitter must be OFF]

2. Press and hold the SW for 5 seconds to 10 seconds.

3. When the LED of the receiver changes from blinking red to blinking orange ?, release the SW.

4. The LED should now blink red two times in the patterns described in the chart below.

5. Each press of the SW advances the receiver to the next mode.

6. When you reach the mode that you wish to operate in, press and hold the SW for more than 2 seconds. When the LED blinks in orange ?, it is the completion of a mode change; release the SW.

7. Cycle the receiver power off and back on again after changing the Channel mode.

Note: The LED will flash for the current CH output mode display.

Dual Rx Link System

By installing two receivers in one aircraft, if one receiver becomes unable to communicate, the other receiver can be operated. This system ensures safety by providing redundancy.

How to Change to Dual RX Link Mode

1. Turn on the receiver. [Transmitter must be OFF]
2. Press and hold the SW for 5 seconds or more.
3. The LED will blink in a sequence: Red → Orange → Green → Orange (slow blink).
4. Release the switch when the sequence is observed.
5. The LED blinks Orange once ?.
6. Press the SW again to return to flashing orange ?.
7. The LED blinks Orange twice ??.
8. Press and hold the SW. The LED blinks Orange ?.
9. Release SW. The LED turns Solid Orange ?.
10. Turn off the receiver power.
11. After restarting the receiver, the MODE LED will light up.

Note: In Dual RX link mode, the SB2/RX port is for reception only. Use CH mode B, C, D, F, or G for S.BUS output and S.BUS2 input/output.

Connection Example

Connect the R7208SB receiver to the FASSTest receiver using the S.BUS2 port. The SB2/RX port on the R7208SB can be used for ESC or other devices. When using an ESC, ensure its regulated output capacity meets usage conditions. Never use dry batteries for the power supply of the R7208SB.

LED Indications

LINK LED

MODE LED

In Dual RX Link Mode

In FASSTest12CH Telemetry OFF Mode

Specifications

• System: FASSTest-2.4 GHz (18 ch/12 ch mode)
• Ports: S.BUS2 and S.BUS port and 8 channels for conventional system receiver
• Antenna: Dual antenna diversity
• Size: 0.98 x 1.53 x 0.56 in. (24.9 x 38.8 x 14.3 mm)
• Weight: 0.35 oz. (9.9 g)
• Power requirement: 3.7 V to 7.4 V (Voltage range: 3.5 V to 8.4 V)
• Battery F/S Voltage: Set up with transmitter
• Extra Voltage port: 0 - 70 V DC

Note: Be sure that when using ESCs regulated output, the capacity of the ESC must meet your usage condition. Never use dry batteries for the power supply of the R7208SB as they may cause difficulties.

Compliance Information

FCC Compliance (U.S.A.)

This device, trade name Futaba Corporation, model number R7208SB, complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) This device must accept any interference received, including interference that may cause undesired operation. CAUTION: To assure continued FCC compliance, any changes or modifications not expressly approved by the grantee of this device could void the user's authority to operate the equipment. This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance 20cm between the radiator & your body. The responsible party for this device compliance is: FUTABA Corporation of America, 2681 Wall Triana Hwy, Huntsville, AL 35824, U.S.A. Phone: 1-256-461-9399, FAX: 1-256-461-1059, E-mail: service@futabaUSA.com.

Industry Canada Compliance (Canada)

This device complies with Industry Canada license-exempt RSS standard(s). Operation is subject to the following two conditions: (1) this device may not cause interference, and (2) this device must accept any interference, including interference that may cause undesired operation of the device. This equipment complies with IC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance 20cm between the radiator & your body.

French: Cet appareil radio est conforme au CNR-210 d'Industrie Canada. L'utilisation de ce dispositif est autorisée seulement aux deux conditions suivantes : (1) il ne doit pas produire de brouillage, et (2) l'utilisateur du dispositif doit être prêt à accepter tout brouillage radioélectrique reçu, même si ce brouillage est susceptible de compromettre le fonctionnement du dispositif. Cet équipement est conforme aux limites d'exposition aux rayonnements IC établies pour un environnement non contrôlé. Cet équipement doit être installé et utilisé avec un minimum de 20 cm de distance entre la source de rayonnement et votre corps.

EU Declaration of Conformity

Hereby, Futaba Corporation declares that the radio equipment type is R7208SB in compliance with Directive 2014/53/EU. The full text of the EU declaration of conformity is available at the following internet address: https://www.rc.futaba.co.jp/support/manual/