E22-400T30D-V2 is a high-performance 1W (30dBm) LoRa wireless UART module powered by the Semtech SX1268 chip, delivering over 8km of line-of-sight range with exceptional -148dBm sensitivity and TCXO-stabilized frequency for industrial-grade reliability.
| Key Parameter | Specification |
|---|---|
| Core Chip | Semtech SX1268 (LoRa) |
| Frequency Range | 410.125 – 493.125 MHz (ISM) |
| Transmit Power | 30 dBm (1W) |
| Receiving Sensitivity | -148 dBm |
| Communication Distance | 8 km (Line-of-Sight) |
| Supply Voltage | 2.7V – 5.5V (3.3V/5V TTL Compatible) |
| Frequency Stability | TCXO ±1.5 ppm |
| Operating Temperature | -40 °C to +85 °C |
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E22-400T30D-V2 Manual
Application Note
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Product Overview
The EBYTE E22-400T30D-V2 is a 433MHz LoRa wireless UART module based on the SEMTECH SX1268 chip. With 30dBm (1W) transmit power and -148dBm receive sensitivity, it delivers up to 8km line-of-sight range — ideal for industrial telemetry, smart agriculture, utility metering, and IoT sensor networks operating in the 410–493MHz ISM band.
- 30dBm TX Power — 8km+ LoS range
- SX1268 chip — industry-leading LoRa performance
- TCXO ±1.5ppm frequency stability
- Dual voltage: 2.7–5.5V (3.3V & 5V compatible)
- Point-to-point, broadcast, and relay transmission modes
- CE / FCC / IC / RoHS certified
Technical Specifications
| Parameter | Value |
|---|---|
| Chip Solution | SEMTECH SX1268 |
| Frequency Range | 410.125 – 493.125 MHz (ISM band) |
| Transmit Power | 30 dBm (1W), configurable |
| Receive Sensitivity | -148 dBm @ 300 bps |
| Communication Range | Up to 8 km (line-of-sight) |
| Air Data Rate | 0.3 – 62.5 kbps (programmable) |
| Interface | UART TTL (configurable baud rate) |
| Operating Voltage | 2.7 – 5.5 V DC |
| Current Consumption | TX: 120 mA | RX: 15 mA | Sleep: 2 μA |
| Frequency Stability | TCXO ±1.5 ppm |
| Antenna Interface | SMA-K (female) |
| Package | DIP, 24 × 43 mm |
| Operating Temperature | -40 °C to +85 °C (industrial grade) |
| Certifications | CE (RED), FCC Part 15, IC, RoHS |
Product Details
SX1268 LoRa RF Front-End Design
The E22-400T30D-V2 integrates a 50Ω impedance-matched RF front-end with SAW filtering and metal shielding. TX power loss is ≤0.5 dBm; spurious emissions are suppressed to ≤-60 dBc, fully compliant with ETSI EN 300 220 and FCC Part 15.247.
AT Command & Firmware Upgrade Support
Configure all parameters — channel, address, baud rate, TX power, and transmission mode — via standard AT commands over UART. Supports in-field firmware upgrades without hardware modification, reducing maintenance overhead in deployed networks.
Industrial-Grade Thermal & EMC Reliability
Rated for continuous operation from -40 °C to +85 °C with no output derating. Metal shielding and multi-layer PCB design ensure stable 30 dBm transmission under harsh EMC environments — suitable for outdoor enclosures, industrial cabinets, and agricultural deployments.
Application
Precision Agriculture Telemetry: The E22-400T30D-V2 solves the challenge of intermittent connectivity across expansive farmlands. By utilizing 30dBm of transmit power and the diffraction capabilities of the 433MHz band, it maintains stable links over 8km, even through dense crop canopies and undulating terrain.
Industrial Smart Utility Metering: In urban environments with heavy concrete shielding, this module’s -148dBm sensitivity enables reliable data acquisition from underground water or gas meters. The TCXO ensures that the frequency remains accurate despite extreme outdoor temperature fluctuations, preventing packet loss in critical billing systems.
Remote Oil & Gas Infrastructure: For pipeline monitoring in isolated regions, the module's relay transmission mode allows for massive network scaling. It integrates directly with 5V industrial PLCs via UART, providing a robust serial data link that overcomes the high path loss associated with metal-heavy oil extraction sites.
Frequently Asked Questions
Q: Is the E22-400T30D-V2 compatible with LoRaWAN gateways?
A: The E22-400T30D-V2 uses a private LoRa protocol (P2P/broadcast/relay) and is not natively LoRaWAN-compatible. For LoRaWAN 1.0.4/1.1 (TTN, Helium, AWS IoT Core), consider the EBYTE E77 series. The E22 series is optimized for long-range private networks with simple UART integration.
Q: How do I configure the module for my application?
A: Use AT commands via any UART terminal or the free EBYTE RF Setting Tool (Windows). Parameters include: operating channel (410–493 MHz), device address, baud rate (1200–115200 bps), TX power (up to 30 dBm), and transmission mode. A USB-TTL adapter is sufficient for configuration.
Q: Does this module carry CE and FCC certification?
A: Yes. The E22-400T30D-V2 holds CE (RED 2014/53/EU), FCC Part 15, IC, and RoHS certifications. Certificate files are available for download on the EBYTE official product page.
Q: What is the maximum communication range?
A: Up to 8 km in open line-of-sight conditions at 30 dBm TX power and maximum spreading factor. Real-world range in urban or obstructed environments is typically 1–3 km. Using a high-gain directional antenna can extend range further.
