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ELRS 915MHz Receiver Dual Antenna

FPV Electronics > VTX & Receiver

$20.90
The ELRS 915MHz Receiver with Dual Antenna leverages the ExpressLRS open-source protocol to deliver ultra-low latency (<10ms) and extended-range communication (10km+) for FPV drones and industrial UAVs.
SKU: 24161
Package weight: 0.10 KG
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ELRS 915MHz Receiver Dual Antenna | Long-Range FPV Drone Receiver Specifications

Description

The ELRS 915MHz Receiver with Dual Antenna leverages the ExpressLRS open-source protocol to deliver ultra-low latency (<10ms) and extended-range communication (10km+) for FPV drones and industrial UAVs. Engineered with true diversity reception and a temperature-compensated crystal oscillator (TCXO), it ensures reliable signal stability in complex environments like urban areas or dense foliage. The compact design and robust RF performance make it ideal for long-range exploration, agricultural surveying, and applications demanding fail-safe control under interference.

1. Main Specifications

ParameterSpecification
ProtocolExpressLRS 3.x (Open Source)
Frequency Band915MHz (FCC) / 868MHz (EU)
Antenna ConfigurationTrue Diversity (Dual IPEX1)
RF ChipESP32-PICO-D4 + SX1276
Dimensions18×25×5.5mm
Weight1.7g (Receiver Only)
Refresh Rate25-200Hz Adjustable
Telemetry Power500mW (Max)
Input Voltage5V DC ±10%
Sensitivity-112dBm @ 500bps
ConnectivityCRSF/SBUS, SH1.0 4-Pin Connector
Firmware UpdatesWiFi OTA (Onboard ESP32)

2. Key Features

  • • True Antenna Diversity: Dual independent RF paths minimize signal dropout

  • • TCXO Stability: ±0.5ppm frequency drift (-40°C to +85°C)

  • • High Telemetry Power: 50mW downlink for robust long-range feedback

  • • Dynamic Frequency Hopping: Auto-shifts across 8 channels (915-928MHz)

  • • Plug-and-Play Installation: Pre-soldered SH1.0 connector

  • • Dual PA+LNA Amplifiers: Enhanced uplink sensitivity and downlink strength

  • • WiFi OTA Updates: Firmware upgrades without physical connections

  • • Fail-Safe Modes: Customizable hold/land/RTH actions

3. Performance Data

Range ConditionPacket RateLatencyMax Speed
<500m (Urban)200Hz2ms150km/h
500m-3km (Suburban)100Hz4ms120km/h
>5km (Open Field)50Hz10ms80km/h
Tested with 915MHz transmitter @ 100mW telemetry power


4. Recommended Applications

🌄 Long-Range FPV

  • • Mountain surfing (>10km range)

  • • Autonomous waypoint missions

🌾 Agricultural UAVs

  • • Crop spraying control systems

  • • Livestock monitoring telemetry

🏗️ Industrial Inspection

  • • Power line/pipeline surveys

  • • Solar farm thermal imaging

🚁 Competitive Freestyle

  • • Obstacle-dense environments

  • • HD digital systems (DJI O3, Walksnail)

⚡ Specialized Use Cases

  • • Swarm robotics (TDMA synchronization)

  • • First responder drone networks

5. Operational & Environmental Characteristics

  • • Operating Voltage: 4.5-5.5V DC

  • • Temp Range: -40°C to +85°C

  • • Power Consumption: 70mA @5V (200Hz) / 25mA @5V (50Hz)

  • • EMI Shielding: Tolerates 6S ESC noise ≤25dBμV

  • • Water Resistance: IP54-equivalent conformal coating

  • • Antenna Placement: Minimum 50mm separation from carbon fiber

  • • Storage Conditions: -30℃ to 60℃ in ESD-safe packaging

 

Frequently Asked Questions

What VESC current rating do I need for my motor?
Choose by your motor’s phase-current demand and application. 200A–500A VESC controllers suit ebikes, scooters and light robotics; 1000A-class units power high-performance eskate, EUCs and small EVs; 2000A controllers target electric motorcycles and industrial drives. Always leave headroom above your battery’s fully-charged voltage.
Do you offer OEM/ODM customization for VESC controllers?
Yes. ChatRobotic is an ISO 9001 and ISO 14001 certified manufacturer providing OEM/ODM VESC controllers, custom firmware, enclosure design and PCB assembly for 200A–2000A applications. Contact our engineering team with your specs to start a custom build.
How long is the lead time and which shipping methods do you use?
In-stock VESC controllers are shipped via DHL/FedEx after payment is received. Delivery time depends on the shipping method: DHL/FedEx priority express 3–5 business days, economy express 4–6 business days, registered post 8–20 business days, worldwide. OEM/ODM and bulk orders are scheduled by customization scope. Logistics tracking is provided after shipment.
Are these VESC controllers compatible with sensored and sensorless motors?
Yes. ChatRobotic VESC controllers support both sensored (hall-sensor) and sensorless BLDC/PMSM motors and work with a wide battery range. FOC, regen braking, throttle curves and telemetry are fully configurable through VESC Tool.