DATA : RG831B_manual_Rev.B DATE : 2012.05.17 PRINT : SANEI Receiver Specs Product Number: Receiving System: Weight: Dimensions: Rated Voltage: Operating Voltage: Remarks: DMSS 2.4GHz 8ch Receiver (Coaxial antenna type, supporting bi-directional communications) Operation Manual Thank you for purchasing JR product. To allow correct and safe use of this product, be certain to read this operation manual. *Note that DMSS system are not compatible with DSM-2 nor DSM-J systems. [About the TL Logo] Remote Antenna Specs RG831B 8 Channel DMSS System 15g 14.5×25.5×47.5㎜ 4.8Ｖ 4.5-8.5V Coaxial antenna (Antenna/Coaxial) 30/120mm Connection Diagram Sensor (Sold separately) ・Due to the use of the DMSS system, cross modulation is implemented. This high sensitivity receiver is not easily aﬀected by intermodulation interference. ・A telemetry system is incorporated that is capable of feeding back information such as the aircraft remaining battery power. ・Due to the use of both a coaxial antenna and a remote antenna, secure and precise communications can be realized. ・It is possible to conﬁrm the receiving condition according to the lighting of the LEDs. ・Support is provided for the fail safe settings in the transmitter. RA01T DMSS System 4g 5×27×28㎜ 3.3Ｖ 3.1-3.4V Built-in Antenna Type For connecting the sensor, connect the Y-Harness (sold separately) to the [BIND/BATT/SENS] terminal. * It will not be necessary to carry out binding for the sensor. Receiver Battery (Sold separately) ■Please Read Before Use Switch Harness (Sold separately) RG831B Receiver DANGER ! The contents of this display column are points that are assumed to have an imminent danger of occurring, causing death or serious illness to the user or a third party. WARNING ! The contents of this display column are points that are assumed to have the possibility of occurring, causing death or serious illness to the user or a third party. CAUTION ! The contents of this display column are points that are assumed to have the possibility of occurring, causing injury to the user or a third party or causing damage to property. The contents that should be observed are divided and explained using the following indications. Obligatory Items are explained using this indication. Prohibited Items are explained using this indication. Strong Reception Insert the connector, taking adequate care of the direction. DANGER! The following can cause out-of-control and dangerous situations. Never disassemble or modify this product. (In the case of an electrically-driven model,) the engine and the motor can start rotating at high speed, causing danger. Before turning on, set the transmitter throttle stick to the lowest speed position (so that the engine/motor does not start at high power). Turn on the transmitter ﬁrst and then the receiver.. To shut down, switch oﬀ the receiver ﬁrst and then the transmitter. Injury can be caused. When adjusting the engine (motor), pay full attention to the power that can be generated by the propeller. Do not start the engine with the throttle set to a high-speed position. This is very dangerous. The following can cause failures. WARNING! Do not use this module set in combination with other manufacturers products such as servos, gyros etc. Malfunction can be caused. As the electronic parts mounted on the transmitter/receiver are susceptible to impact, do not apply strong impact or drop it. Out-of-control and dangerous situations can be caused. When degraded servo movement is detected, stop operating immediately and check the battery voltage and capacity, servos, etc. • Where transceiver interference exists. • When there is traﬃc of cars and motorbikes passing nearby. • Near high-tension electric lines, buildings, banks, or in mountainous areas, etc. • Near residences and buildings, and near people. • Near a FM/TV station or a radio transmitting station for ship radio. A sudden malfunction may occur and it may be dangerous. Even if the receiver, servo etc. has been submerged and operates normally after it is fully dried, the servo may malfunction. In such a case, do not continue to use the product, and contact us for inspection regardless of the normal operation. CAUTION! Before use, check the following items for safety: ●Is there enough battery voltage for both the transmitter and the receiver? ●Is there any fuel spillage on the receiver, servo, etc. that was caused by leakage from the fuel tank? Is there enough fuel? ●Check that no linkage intereferes with the airplane body. This may cause vibration noise in the airplane. Also, conduct a vibration test by restraining the model and setting the engine (motor) to full power, whilst keeping your hands well clear of the propeller. Check that each control surface moves correctly. For the ﬁrst ﬂight, choose a safe place, avoid ﬂying at a great distance and keep the model close to the landing area for several minutes until you are fully conﬁdent that the receiver is operating correctly. ■ For further question or inquiry please contact your local dealer or JR distributor in your country. If each antenna is installed in parallel, the receiving eﬃciency will be reduced . RX RX RG831B Main Unit RX RX RA01T Side View Strong Reception ▼ Front Face ▲ Rear Face RG Cable 150 Close up of the connector Do not use the product in the following places, as there will be a risk of an out-of-control condition or an accident: In order to protect against injury to users or third parties, or damage to property, points that must certainly be observed are shown below. Weak Signal Wrong Antenna Installation Coaxial part of the antenna can be bent however, do not bend in right angle. this will damage the internal antenna wires. * The remote antenna receives the data and also feeds back to the transmitter. Injury due to heat , ﬁre, or electric shock can occur. (1) The 2.4GHz band is not a frequency exclusively for use with RC airplanes. This frequency band is in common use with the ISM (industry, science, and medical care) band which is widely used for short-distance transmissions such as microwave ovens, wireless LAN, digital cordless phones, audio, gaming devices, cell phone Bluetooth. Therefore, the response of the 2.4GHz system may be reduced in urban areas. Further, as it also is used for ham and local area radio communication for mobile identiﬁcation, please pay attention to the possible inﬂuences from these. In the event of any adverse radio wave interference on an existing wireless station, immediately stop emitting radio waves and take the interference avoidance measures. (2) At race tracks and airﬁelds, minimize the use of devices that can aﬀect the transmitter/receiver and be sure to conﬁrm the safety beforehand. Also, always follow the instructions of the facility staﬀ. (3) If an aircraft is allowed to pass behind a building, pylon, trees, etc. the radiowave range is blocked, the response may drop, even result in losing control. Always let aircraft run or ﬂy within a range that you can visually observe. Strong Reception The antenna part should be installed in a perfectly straight condition. Remote Antenna Do not use the product on rainy days since it may cause malfunction if water gets inside the electronic devices. If it must be used, be sure to take waterproof measures. ●Basic Precautions for Safe Use of the 2.4GHz System Strong Reception Due to the nature of the 2.4GHz band which has a strong directionality in its radio waves, the receiving sensitivity will greatly diﬀer depending on the direction against the antenna. Since the antenna receives radio waves from the sides rather than from the tip, please take adequate care of the antenna direction when installing the antenna. The arrows show the receiving direction with regard to the antenna. Built-in Antenna Built-in Antenna Y-Harness (Sold separately) Conﬁguration ●RG831B Receiver Main Unit ●RA01T Remote Antenna ●RG Cable 150 ●Binding Plug ●Operation Manual (This document) To allow safe use, be certain to observe the following points. Weak Signal About the Sensor Connections SENSOR This logo is only included on products that support the JR Telemetry System (bi-directional communications). Features Product Number: Receiving System: Weight: Dimensions: Rated Voltage: Operating Voltage: Remarks: Concerning the 2.4GHz Band Characteristics and Receiving Radio Wave Circuit Board Face In the case where there are two coaxial antennas in the receiver main unit, the faces of each antenna should be installed so that they are at right angles to each other, rather than being parallel. Note that in order to allow certain and stable communications to be carried out, it is recommended that each antenna should be installed with a separation of 30mm or more. The built-in antenna of the remote antenna is installed on the surface of the circuit board. Care will be required in the situation where the built-in antenna has been installed beside a shielding material, since the receiving sensitivity will be considerably degraded. In the situation where the antenna has been Material Frame attached directly to a shielding material such as Receiving carbon or metal, the receiving sensitivity of the Receiving Sensitivity Sensitivity installed antenna surface will be considerably (Low) (High) reduced. When the antenna is to be installed on this kind of shielding material, either separate the antenna as far as possible from the material, or in the case where the radio wave shielding material is the aircraft body itself project the Receiving Sensitivity antenna outside the aircraft body. (High) DO NOT bend the antenna tip ! The antenna part (30mm) should be installed re it is perfectly straight. If bent, stable receiving will not be possible. * Take care not to damage the antennas projecting from the aircraft body. RX Receiving Sensitivity (High) Aircraft body surface made from shielding material RX Method of Binding ■ In order to establish communications with the transmitter, binding (pairing) must certainly be carried out. In this section, an explanation is given of the binding . First, confirm that the remote antenna is securely connected to 1 the receiver, then prepare the included binding plug and a fully charged battery. When the LEDs of the receiver and the remote antenna stop 4 blinking, the binding will be completed. After removing the binding plug, switch off the power of the transmitter and receiver. ★The remote antenna performs the role of the transmitter of the telemetry system. Although it is possible to use the receiver without the remote antenna , the receiving sensitivity will be reduced and the telemetry function can not be used. * In the case where the LEDs continue to flash instead of changing to continuous lighting, repeat the procedure over again from the beginning. By inserting the bind plug into the binding terminal of the receiver 2 and connecting the battery to a spare channel (such as the AUX channel), the LEDs on the receiver and the remote antenna will begin to flash. connect the servo and confirm that communications have been 5 Lastly, established. Note that when carrying out range testing, after setting (Binding Standby Condition) Connect the battery to a spare channel. 3 LED Lighting Locations Binding Terminal Bind Plug Display the [BIND] Setting Screen in the transmitter System Setting Mode. * The figure below shows the XG8 screenshot. [Situation of the XG8] Binding Output Screen In the situation where binding is unsuccessful, conﬁrm the following points. ・Is the remaining battery power of the transmitter and receiver adequate? ・Is the remote antenna securely connected? ・Is the distance between the transmitter and receiver too close? ・When the procedure is carried out on the top of a desk or bench that is made from metal, binding may not be successful. the transmitter to the reduced power output condition maintain a distance of approximately 40m from the aircraft Keep approximately 40m and move around it to confirm that away from the aircraft operation can be carried out from all directions. * Regarding the operation method for reducing the transmitter power output, please read the transmitter operation manual. Range Test About the [DMSS] Fail Safe The fail safe is set using the Fail Safe function on the transmitter.
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