FrSky Tandem TD MX Dual Band Receiver 2.4GHz & 900MHz With Connectors
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FrSky TD MX Tandem Dual-Band RC Receiver | With Connectors
The FrSky TD MX is an ultra-compact, lightweight receiver in the FrSky Tandem dual-band lineup. This compact board-style receiver operates on 2.4GHz and 900MHz simultaneously, giving pilots Tandem dual-band reliability in a very small installation footprint.
Measuring only 25 x 21 x 4mm / 0.98 x 0.83 x 0.16 in and weighing just 7.1g / 0.25 oz, the TD MX is designed for aircraft where space and weight are critical. It is ideal for micro aircraft, sailplanes, lightweight sport planes, compact pattern aircraft, and other builds where a larger receiver is not practical.
This version includes the TD MX receiver with connectors pre-installed for easier wiring and faster installation.
Key Features
- Simultaneous dual-band operation: Runs 2.4GHz and 900MHz at the same time for added signal reliability and anti-interference performance
- Ultra-compact board design: 25 x 21 x 4mm / 0.98 x 0.83 x 0.16 in
- Lightweight design: Just 7.1g / 0.25 oz for weight-sensitive aircraft
- 4 PWM outputs: Provides direct servo output for simple and compact aircraft setups
- SBUS Out: Single-wire digital output for compatible flight controllers, servos, or expansion setups
- S.Port / FBUS support: Supports compatible FrSky telemetry devices, sensors, and ESCs
- Triple antenna design: Provides multi-directional signal coverage for enhanced reception reliability
- Built-in black box: Records power and signal data for post-flight review and troubleshooting
- 4ms Race Mode with telemetry: Low-latency response while retaining telemetry feedback
- OTA firmware updates: Update receiver firmware wirelessly without removing it from the aircraft
- Connector version: Factory-installed connectors simplify wiring compared to bare-board versions
Specifications
| Brand | FrSky |
| Model | TD MX |
| Version | With connectors |
| Frequencies | 2.4GHz and 900MHz simultaneous dual-band |
| PWM Outputs | 4 |
| Additional Outputs / Ports | SBUS Out, S.Port, FBUS |
| Dimensions | 25 x 21 x 4mm / 0.98 x 0.83 x 0.16 in |
| Weight | 7.1g / 0.25 oz |
| Operating Voltage | 3.5V – 10V DC |
| Operating Current | ≤185mA @ 5V |
| Antenna Design | Triple antenna design |
| Telemetry | Yes |
| OTA Updates | Yes |
| Compatibility | FrSky Tandem series transmitters and TD protocol capable RF modules |
Recommended Use
The TD MX is best suited for aircraft where size and weight matter most. It is a strong choice for micro aircraft, compact sport models, sailplanes, lightweight pattern planes, and other fixed-wing aircraft that need Tandem dual-band performance without the size of a larger receiver.
Why Choose the FrSky TD MX?
The TD MX brings FrSky Tandem dual-band technology into a compact receiver built for tight installations. It offers simultaneous 2.4GHz and 900MHz operation, telemetry support, FBUS capability, OTA firmware updates, and a lightweight board-style design with pre-installed connectors.
- Compact Tandem dual-band receiver for tight installations
- Simultaneous 2.4GHz and 900MHz operation
- Lightweight 7.1g / 0.25 oz design
- 4 PWM outputs for compact aircraft setups
- SBUS Out for digital output applications
- S.Port and FBUS support for compatible telemetry devices
- Built-in black box for power and signal data recording
- OTA firmware updates for easier maintenance
- Pre-installed connectors help simplify installation
TD MX vs. TD R10 vs. TD R18
| Feature | TD MX | TD R10 | TD R18 |
|---|---|---|---|
| Best For | Small, lightweight aircraft | Mid-size and advanced aircraft | Large, complex aircraft |
| Direct Ports | 4 PWM outputs | 10 configurable ports | 18 configurable ports |
| Weight | 7.1g / 0.25 oz | 16.6g / 0.59 oz | 28.9g / 1.02 oz |
| Dual-Band Operation | Yes | Yes | Yes |
| Dual XT30 Power Inputs | No | No | Yes |
| OTA Updates | Yes | Yes | Yes |
Important Setup Notes
- Compatible with FrSky Tandem series transmitters and TD protocol capable RF modules.
- Not intended for ACCST-only or standard ACCESS-only FrSky radios.
- Confirm your operating voltage is within the 3.5V–10V DC range before connecting power.
- Bind and configure the receiver before final installation.
- Route antennas carefully and avoid placing them directly against carbon fiber, metal, batteries, ESCs, motors, or ignition components.
- Because this is a compact board-style receiver, mount it securely to reduce vibration and protect the board.
- Perform a range check before the first flight.
Frequently Asked Questions
Does the TD MX operate on both 2.4GHz and 900MHz at the same time?
Yes. The TD MX uses FrSky Tandem dual-band technology and operates on 2.4GHz and 900MHz simultaneously with compatible equipment.
How many PWM outputs does the TD MX have?
The TD MX has 4 direct PWM outputs, along with SBUS Out, S.Port, and FBUS support.
What is the difference between the TD MX and TD R10?
The TD MX is smaller and lighter with 4 PWM outputs. The TD R10 is larger, heavier, and provides 10 configurable channel ports for aircraft that need more direct servo connections.
What is the difference between the TD MX with connectors and without connectors?
This listing is the version with connectors pre-installed. This makes installation easier and reduces wiring work compared to the bare-board version.
What radios are compatible with the TD MX?
The TD MX requires a FrSky Tandem series transmitter or a TD protocol capable RF module. It is not intended for ACCST-only or standard ACCESS-only radios.
Can the firmware be updated wirelessly?
Yes. The TD MX supports OTA firmware updates when used with compatible FrSky equipment.
What's Included
- One FrSky TD MX Tandem dual-band receiver with connectors
- Receiver antennas as supplied by FrSky
Transmitter, RF module, servos, ESC, sensors, batteries, and aircraft are not included unless specifically stated above.