Product overview
The RadioLink T8FB(BT) is an eight-channel radio transmitter for racing drones, fixed-wing aircraft, helicopters, gliders, cars and boats. Its controls combine two gimbal sticks with four trims, channel phase switches, two rotary knobs, a two-way switch and a three-way switch. Channels five through eight support programmable mixing. Parameter adjustment uses an Android or iOS app over Bluetooth, or computer tools connected by USB. USB also supports firmware upgrades. Telemetry provides transmitter voltage and RSSI, while model-voltage display requires an R16F, R8FGH, R8FG or R7FG receiver.
Receiver integration uses SBUS, PPM or PWM through the standard R8EF, including simultaneous PWM outputs on channels three through eight during SBUS and PPM operation. The transmitter accepts 4.8V~18V and several battery arrangements; an 18650 battery must have a JST connector and fit the 115 × 35.5 × 24mm compartment. Packing comprises a transmitter, receiver, hook-and-spring set, manual and box, subject to purchased configuration. Control distances depend on receiver selection. Performance measurements use favorable, closed-environment conditions with an unobstructed wireless signal; results vary with environment, usage and firmware version.
Specifications
| Specification | Value & conditions |
|---|---|
| Product type and channels | RadioLink T8FB(BT) eight-channel radio transmitter for racing drones, fixed-wing aircraft, helicopters, gliders, cars and boats. |
| Battery case dimensions | 115(L)*35.5(W)*24(H)mm (4.53"*1.4"*0.94") |
| Operating voltage | 4.8V~18V |
| Battery options and connector | JST connector; 4pcs AA batteries, a 2S-4S LiPo or an 18650 lithium battery.An 18650 lithium battery must have a JST connector and fit the 115(L)*35.5(W)*24(H)mm (4.53"*1.4"*0.94") battery case. |
| Operating current | Less than 80mA, using a switching-mode power supply.Measured in a closed environment under favorable conditions with an unobstructed wireless signal; actual results may vary with environment, usage and firmware version. |
| Operating duration | More than 20 hours.With a 3S 1800mAh LiPo battery in T8FB(BT); measured in a closed environment under favorable conditions with an unobstructed wireless signal. Actual results may vary with environment, usage and firmware version. |
| Radio architecture | FHSS with 67-channel pseudo-random frequency hopping and a TI CC2500 chip. |
| PWM signal jitter | Maximum 1.84us; regular 0.25us.Measured in a closed environment under favorable conditions with an unobstructed wireless signal; actual results may vary with environment, usage and firmware version. |
| Receiver output protocols | SBUS, PPM and PWM output without extra cables or a signal converter.Using the standard R8EF receiver. |
| Concurrent PWM outputs | Channels 3 to 8 can simultaneously output corresponding PWM signals.While the R8EF receiver outputs SBUS and PPM signals. |
| Compatible receivers | R16F, R16SM, R12F, R8EF, R8FM, R8SM, R8XM, R8FGH, R8FG, R7FG, R6FG, R6F and R4FGM. |
| Ground and airborne control distances | Ground / airborne: R8EF 500m / 2000m; R16F 600m / 4000m; R16SM unspecified / 3000m; R12F 600m / 4000m; R8F 800m / unspecified; R8FG 600m / unspecified; R8FGH 600m / unspecified; R8XM 1100m / 4000m; R8FM 500m / 2000m; R8SM unspecified / 2000m; R7FG 600m / unspecified; R6FG 400m / unspecified; R6F 400m / unspecified; R4FGM 400m / unspecified.Receiver-dependent; measured in a closed environment under favorable conditions with an unobstructed wireless signal. Actual results may vary with environment, usage and firmware version. |
| Parameter configuration | Android or iOS app configuration over Bluetooth; computer configuration over USB.Bluetooth connection for mobile setup; USB cable connection for computer setup. |
| Firmware upgrades and operating systems | USB firmware upgrades; software supports Windows 7, Windows 8, Windows 10 and Windows XP.Firmware upgrade software. |
| Telemetry | Real-time transmitter voltage and RSSI feedback. |
| Model voltage display | Model voltage displayed in the mobile app.Paired with R16F, R8FGH, R8FG or R7FG. |
| Programmable mixing | Programmable mix control on channels five through eight.Channels five through eight. |
| Physical controls | Antenna, two gimbal sticks, four trims, four channel phase switches, SWA two-way switch, SWB three-way switch, VrA and VrB knobs, LED indicators, power switch and hook holder.Illustrated Mode 1 control layout. |
| Reverse-polarity protection | Software-based reverse-polarity protection for the transmitter and receiver. |
| Supplied configuration | One transmitter, one receiver, one hook-and-spring set, one user manual and one packing box.Actual packing contents depend on the purchased configuration. |
| Performance measurement conditions | Actual results may vary with environment, usage and firmware version.Measurements in a closed environment under favorable conditions with an unobstructed wireless signal. |
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