Product Description of Spektrum P-SPMAR20400T 20-channel DSMX receiver with integrated barometer and Smart ESC support
The Spektrum P-SPMAR20400T 20-channel DSMX receiver with integrated barometer and Smart ESC support is engineered for giant-scale aircraft and jet models that demand uncompromising power delivery, telemetry depth, and RF reliability. Built on Spektrum’s patented PowerSafe™ architecture, this receiver offers true dual battery redundancy via 13AWG IC3 inputs, full-range telemetry with integrated sensors, and support for high-speed 11ms frame rates. Whether you're flying aggressive 3D setups, IMAC competition aircraft, or turbine-powered platforms, this receiver delivers the performance and protection required for advanced flight operations.
Key features of the Spektrum P-SPMAR20400T 20-channel DSMX receiver
- Dual IC3 battery inputs with failover - ensures uninterrupted power delivery for high-current aircraft
- Integrated barometer and telemetry logging - provides altitude, vario, and flight data without external modules
- Smart ESC support and USB firmware updates - enables streamlined telemetry and simplified setup
- SRXL2 receiver support and MultiLink™ RF redundancy - enhances signal integrity with multiple remote paths
- Battery capacity monitor and sleep mode - tracks mAh usage and allows transmitter-based power control
- Status LED indicators and soft switch - provides real-time system feedback and uninterrupted servo current
How does the PowerSafe receiver with dual IC3 inputs protect high-current aircraft?
The Spektrum PowerSafe receiver with dual battery monitoring, SRXL2 RF redundancy, and USB updates is designed to handle the extreme demands of power-hungry aircraft. With dual 13AWG battery leads and IC3 connectors, each battery is isolated to prevent failure propagation. If one pack fails or shorts, the other seamlessly takes over, ensuring uninterrupted operation. The integrated soft switch routes servo current around the switch itself, so even in the event of switch failure, the system remains powered. This architecture supports continuous current draw up to 35A, with burst capacity reaching 50A—ideal for jets, IMAC aircraft, and large-scale aerobats.
What telemetry capabilities are built into this full-range DSMX receiver?
The Spektrum P-SPMAR20400T telemetry receiver with SRXL2 ports, USB updates, and SD flight log offers a comprehensive telemetry suite without requiring external modules. Its integrated barometer delivers altitude and vario data directly to compatible Spektrum transmitters. Built-in ports support RPM, flight pack voltage, and temperature sensors, while the XBUS expansion allows for GPS, airspeed, and turbine ECU telemetry integration. When a micro SD card is inserted, the receiver automatically logs flight data—including battery status and telemetry metrics—into a CSV file for post-flight analysis. This “Black Box” logging system helps pilots diagnose performance issues and optimize aircraft setup over time.
Can this DSMX telemetry receiver support Smart ESC integration?
Yes. The Spektrum P-SPMAR20400T with 3.5–12.6V input, 2048 resolution, and 13AWG battery leads is fully compatible with Spektrum Smart ESCs. This enables one-wire telemetry transmission for voltage, current, RPM, and temperature data—eliminating the need for additional modules, links, or wires. The receiver also supports 12V servo applications, which can be activated via Forward Programming. Combined with high-speed 11ms frame rates, this integration ensures responsive control and real-time telemetry for high-performance aircraft.
How does MultiLink™ RF redundancy improve signal reliability?
RF integrity is critical in large-scale and turbine-powered aircraft. The DSMX telemetry receiver with XBUS expansion, RPM/voltage/temp ports, and status LED indicators includes four SRXL2 remote receivers that leverage Spektrum’s MultiLink™ technology. This system eliminates antenna blind spots and reflected signal fading common in 2.4GHz setups. Each receiver can be placed strategically throughout the airframe using the included extensions, ensuring robust signal coverage from all angles. The integrated status LED provides real-time feedback on receiver readiness, remote connectivity, and SD card recording status—helping pilots confirm system health before takeoff.
What makes this PowerSafe receiver ideal for jet and IMAC aircraft?
The PowerSafe receiver for giant-scale aircraft with battery capacity monitor and sleep mode is purpose-built for platforms that demand high channel counts, telemetry depth, and power redundancy. With 20 channels, pilots can configure complex servo layouts, retracts, lighting systems, and more. The battery capacity monitor tracks mAh usage across flights and resets automatically when fully charged packs are installed. Sleep mode allows pilots to power the system on or off directly from their transmitter, streamlining field operations and eliminating the need for physical switches. Rubber grommet hard mounts and minimalistic labeling support clean installations in tight fuselage compartments.
How does Forward Programming simplify receiver setup?
Configuration is streamlined with Forward Programming, allowing pilots to adjust failsafe settings, servo frame rates, and voltage parameters directly from a compatible Spektrum transmitter. No external devices or software are required. This wireless setup method is especially useful for tuning aircraft systems at the field, enabling quick adjustments without disassembly. Combined with the receiver’s USB update port, pilots can maintain firmware and registration with ease, ensuring optimal performance across all flight conditions.
Why this 20-channel DSMX receiver is trusted for advanced builds
For pilots building high-performance aircraft, the best 20-channel DSMX receiver with bind button, SD telemetry logging, and Smart ESC compatibility offers a complete solution. Its combination of dual battery redundancy, expansive telemetry support, RF path diversity, and Smart ESC integration makes it a top-tier choice for serious flyers. Whether you're configuring a turbine jet, IMAC competition aircraft, or a complex aerobatic platform, this receiver delivers the control, data, and protection needed to fly with confidence.
Buy Spektrum P-SPMAR20400T AR20400T receiver for jet and IMAC aircraft with PowerSafe redundancy.
Technical Specifications of Spektrum P-SPMAR20400T 20-channel DSMX receiver with integrated barometer and Smart ESC support
Brand, Model and Product Type
- Brand: Spektrum
- Model: P-SPMAR20400T
- Product Type: Spektrum P-SPMAR20400T AR20400T PowerSafe receiver with dual IC3 inputs and full-range telemetry, Spektrum P-SPMAR20400T 20-channel DSMX receiver with integrated barometer and Smart ESC support, Spektrum P-SPMAR20400T telemetry receiver with SRXL2 ports, USB updates, and SD flight log, Spektrum P-SPMAR20400T with 3.5–12.6V input, 2048 resolution, and 13AWG battery leads, PowerSafe receiver for giant-scale aircraft with battery capacity monitor and sleep mode, DSMX telemetry receiver with XBUS expansion, RPM/voltage/temp ports, and status LED indicators
Dimensions
- Length: 6.9 cm – suitable for large-scale aircraft requiring robust receiver architecture
- Width: 6.5 cm – accommodates multiple telemetry ports and high-current battery leads
- Height: 1.8 cm – compact enough for clean installations with rubber grommet hard mounts
- Weight: 86 g – optimized for structural integration in jet and IMAC aircraft
Power and Voltage Specifications
- Input Voltage: 3.5–12.6V – supports standard and 12V servo applications via Forward Programming
- Battery Leads: Dual 13AWG IC3 connectors – designed for high-current draw systems
- PowerSafe Redundancy: True dual battery isolation – ensures seamless failover if one pack fails
- Battery Capacity Monitor: Integrated telemetry tracking – displays mAh consumed and resets automatically when charged
- Soft Switch: Routes servo current around switch – prevents power interruption in case of switch failure
Telemetry and Sensor Integration
- Telemetry Range: Full – supports long-range data transmission for altitude, vario, and system metrics
- Integrated Barometer: Provides altitude and vario telemetry without external modules
- Telemetry Ports: RPM, Flight Pack Voltage, Temperature – built-in support for standard sensors
- XBUS Expansion: Enables GPS, airspeed, and turbine ECU telemetry integration
- Smart ESC Compatibility: One-wire telemetry support – transmits voltage, current, RPM, and temperature data
- SD Flight Log: Integrated Black Box telemetry – logs flight data to micro SD card (not included)
Connectivity and RF Redundancy
- Remote Receiver Ports: 4 – supports up to four SRXL2 receivers for MultiLink™ RF path diversity
- SRXL2 Connectivity: Simplifies one-wire connection to supported devices
- Bind Method: Bind button – offers four binding options for flexible setup
- Modulation: DSMX/DSM2 – compatible with all Spektrum DSMX and DSM2 transmitters
- Resolution: 2048 – ensures precise signal fidelity and servo response
- Frame Rate: Capable of high-speed 11ms – ideal for aggressive 3D and IMAC applications
Status and Diagnostics
- Status LED Indicators: Displays system readiness, SD recording status, and error codes
- Initialization Feedback: White blinking/breathing – system not ready to fly
- Failure Alerts: Red LED – indicates power or RF failure
- Remote Detection: One or two blinks – alerts for missing or insufficient remote receivers
- Ready States: Solid blue (recording) or green (non-recording) – confirms flight readiness
Programming and Updates
- Forward Programming: Wireless configuration – adjust failsafe, frame rate, and voltage settings via transmitter
- USB Port: Micro USB – supports firmware updates and product registration via Spektrum PC Programmer
What’s in the Box
- 1 × Spektrum AR20400T 20-Channel PowerSafe Receiver
- 4 × SRXL2 Remote Receivers
What You Require / What You Will Need
- Compatible Spektrum DSMX or DSM2 transmitter
- Micro SD card – required for telemetry logging
Sold Separately
- Micro SD card – for Black Box telemetry logging
- Additional telemetry sensors – GPS, airspeed, turbine ECU modules
