1. Product Series Overview

1.1 Technical Positioning

The Ebyte E160 Series consists of ASK/OOK superheterodyne wireless transmitter (TX) and receiver (RX) modules operating on the globally recognized 315MHz / 433.92MHz ISM public bands.

Compared to traditional super-regenerative architectures, the superheterodyne RF design used in the E160 series delivers significantly higher receiving sensitivity, superior anti-interference capabilities, and excellent temperature stability. These modules do not require complex wireless protocol stacks; single-directional wireless data transmission is achieved using basic logic-level controls. Emphasizing low cost, easy integration, and high reliability, they are perfectly suited for low-data-rate, short-to-medium-range communication scenarios such as wireless remote controls, security alarms, access gates, industrial sensors, and smart home triggers.

1.2 Product Line Classification

Based on power output and market positioning, the E160 series is categorized into four distinct tiers to cover everything from low-cost residential use to long-range industrial applications:

Product Series Positioning Tier Nominal TX Power Open-Field Range Core Target Scenarios
E160-M Basic Series Entry-Level Cost-Effective 0 to 2 dBm (1 to 1.6 mW) 210 meters Home remote controls, small appliance triggers, low-cost sensor nodes.
E160-F Advanced Series Balanced Performance Same as M Series (Optimized RX Sensitivity) 240 meters Access control systems, security alarms, industrial short-range remotes.
E160-T/R Mid-Power Series Enhanced Mid-Range 12 to 20 dBm (16 to 100 mW) 300 meters Factory-wide remote controls, agricultural sensors, distributed building nodes.
E160-20 High-Power Series Long-Range High-Power Above 20 dBm 300+ meters Outdoor long-range remote controls, field monitoring, harsh industrial sites.

2. Core Parameter Comparison Matrix

2.1 Transmitter Modules (TX) Comparison

Model Frequency Nominal TX Power Voltage Range Typical TX Current Modulation Data Rate Package Core Features
E160-T4FS1 315 / 433.92 MHz 0 dBm (1 mW) 1.8~5.6V DC ≤10 mA ASK/OOK 0.5~20 kbps SMD / Stamp Hole Ultra-low voltage adaptation, micro-power consumption, ultra-small size.
E160-T4MS1 315 / 433.92 MHz 2 dBm (1.6 mW) 1.8~3.6V DC Slightly higher than T4FS1 ASK/OOK 0.5~40 kbps SMD / Stamp Hole Higher transmission speed, optimized for low-voltage battery operation.
E160-T3F12S2 315 / 433.92 MHz 12 dBm (16 mW) 3.3~5.0V DC ≤9 mA ASK/OOK 0.5~40 kbps SMD / Stamp Hole Ideal balance of power and range, industrial-grade temperature stability.
E160-T3M12S1 315 / 433.92 MHz 20 dBm (100 mW) 3.3~5.0V DC - ASK/OOK 0.5~40 kbps SMD / Stamp Hole Medium-to-high power output for extended communication ranges.
E160-20-TX 315 / 433.92 MHz >20 dBm 5.0~12.0V DC - ASK/OOK 0.5~40 kbps DIP Pin / SMD High power, long range, wide voltage tolerance for rugged outdoor use.

2.2 Receiver Modules (RX) Comparison

Model Frequency Typical RX Sensitivity Voltage Range Typical RX Current Demodulation Output Type Package Core Features
E160-R4FS1 315 / 433.92 MHz -102 dBm 2.0~5.5V DC ≤7 mA ASK/OOK GPIO Level SMD / Stamp Hole Low-power basic receiver paired with the T4FS1 transmitter.
E160-R4MS1 315 / 433.92 MHz -105 dBm 2.0~5.5V DC Slightly higher than R4FS1 ASK/OOK GPIO Level / UART SMD / Stamp Hole High sensitivity, supports custom MCU encoding/decoding protocols.
E160-R3FS2 315 / 433.92 MHz -105 dBm 3.3~5.0V DC - ASK/OOK GPIO Level SMD / Stamp Hole Industrial-grade stability, tailored for 300m mid-range setups.
E160-R3MD2 315 / 433.92 MHz -107 dBm 3.3~5.0V DC ≤4.5 mA ASK/OOK GPIO Level SMD / Stamp Hole Micro-power draw with ultra-high sensitivity; top pick for batteries.
E160-20-RX 315 / 433.92 MHz Approx. -110 dBm 5.0~12.0V DC - ASK/OOK GPIO / UART DIP Pin / SMD Ultra-high sensitivity and wide voltage, pairs with high-power transmitters.

3. Deep-Dive In-Series Differentiation

3.1 Performance Dimension: Power Levels

Feature Dimension Basic (T4/R4 Series) Mid-Power (T3/R3 Series) High-Power (E160-20 Series)
Nominal Open Range 200 to 240 meters 250 to 300 meters Over 300 meters
TX Power Consumption Micro-watt level, ≤10 mA Milli-watt level, ≤20 mA Multi-tens of mA level
RX Sensitivity Range -102 to -105 dBm -105 to -107 dBm Around -110 dBm
BOM Unit Cost Low Medium High
Recommended Supply Coin cell / Dry batteries Host board 3.3V / 5V rail 5 to 12V DC power supply
Wall/Obstacle Penetration Weak; light partition walls only Moderate; regular brick walls Strong; handles complex obstacles

3.2 Form Factor Dimension: Packaging Comparison

  • SMD / Stamp Hole Packaging: Optimized for automated SMT placement directly onto the device motherboard. It minimizes space and provides maximum vibration resistance, making it perfect for high-volume consumer or industrial mass-production hardware.

  • DIP / Through-Hole Pin Packaging: Perfect for rapid prototyping, breadboarding, and low-volume custom deployments. It allows quick pin-header soldering or socket swapping but requires a larger physical footprint.

3.3 Functional Dimension: Pure Analog vs. Hardware Decoding

  • Pure Analog Output (Basic Models): Outputs raw analog level signals directly. Developers must connect an external MCU to write custom decoding algorithms. This provides a highly flexible platform for proprietary protocols at a lower hardware unit cost.

  • Built-in MCU Encoding/Decoding Models: Features a built-in codec chip that outputs ready-to-use digital logic switching signals or structured data frames. It offers true plug-and-play operation with standard remote control code protocols (e.g., EV1527), which significantly cuts down firmware development time and increases resistance to accidental triggers through built-in address validation.

4. Structured Selection Recommendations

4.1 Selection Matrix by Core Project Requirements

Core Project Requirement Preferred TX/RX Combo Selection Rationale
Lowest Possible Cost for Basic Remotes E160-T4FS1 + E160-R4FS1 Delivers foundational performance for consumer electronics at the lowest possible BOM cost.
Ultra-Long Battery Life Constraints E160-T4MS1 + E160-R3MD2 Both ends utilize micro-power architectures, extending coin-cell battery life from months to years.
Industrial Stability at Mid-Range E160-T3F12S2 + E160-R3FS2 Balances power budget with range. Wide-temperature tolerance and robust anti-interference for factory lines.
Outdoor / Heavily Obstructed Areas E160-20-TX + E160-20-RX High-power transmission combined with extreme sensitivity ensures signal penetration past 300 meters.
Custom Data Frames & Packaging E160-T3M12S1 + E160-R4MS1 Supports faster data rates, providing the necessary bandwidth for MCUs to implement custom framing protocols.

4.2 Application Scenarios

  • Home Appliances (Lighting, Fans, Smart Plugs): E160-T4FS1 + R4FS1 — Cost-effective and tiny, fitting seamlessly into plastic enclosures for home remotes and device controllers.

  • Security Alarms (Window Sensors, PIRs, Panic Buttons): E160-T4MS1 + R4MS1 — Combines long standby battery life with low false-positive trigger rates for decentralized sensor arrays.

  • Access Gates & Garage Roller Doors: E160-T3F12S2 + R3FS2 — Provides mid-range penetration through walls and reliable outdoor performance across seasonal temperature shifts.

  • Industrial Cranes & Hoist Machinery: E160-20 Series — High power output resists heavy industrial electromagnetic noise while keeping operators at a safe, remote distance.

  • Agricultural Monitoring (Soil & Weather Nodes): E160-T3M12S1 + R3MD2 — Enables low-power, distributed sensing in crop fields without deploying communication wiring infrastructure.

5. Design Considerations & Risk Management

5.1 RF Installation and Environmental Best Practices

  1. Antenna Impedance Matching: The module must be paired with a $50\,\Omega$ characteristic impedance antenna cut for the corresponding frequency band (e.g., spring antennas, PCB trace antennas, or whip antennas). Ensure any RF traces on your host PCB are designed with $50\,\Omega$ impedance control, and keep paths as short and straight as possible.

  2. Structural Obstacles: Sub-GHz signals offer great physical penetration, but solid metal structures and thick reinforced concrete will heavily attenuate the signal. Always orient the antenna toward the primary communication path and avoid completely enclosing the module in sealed metal housings.

  3. Co-Frequency Interference Mitigation: Since 315MHz and 433MHz are globally accessible public ISM bands, congestion from neighboring equipment is common. To reduce packet error rates and accidental triggers, lower your transmission bit rate, introduce checksum bytes (such as CRC), or evaluate different channel frequencies.

  4. Close-Range Blind Spots: High-power transmitter variants can saturate the receiver front-end at close range. If the TX and RX modules are positioned too close together, communication might drop entirely. Maintain a minimum operating distance of 1 to 2 meters during testing and deployment.

5.2 Hardware Integration Guidelines

  1. Power Supply Decoupling: Parallel a 100nF ceramic capacitor with a $10\,\mu\text{F}$ electrolytic capacitor directly across the module's power input pins to suppress voltage ripple. Excessive ripple will degrade the RF front-end performance, which lowers sensitivity and spikes the packet error rate.

  2. I/O Logic Level Shifting: The majority of these mass-production modules run on 3.3V logic levels. Interfacing them directly with traditional 5V MCU I/O pins poses a risk of overvoltage damage to the RF IC. Implement proper logic-level shifters or resistor divider networks.

  3. ESD and Surge Defenses: Exposed external antenna terminals are highly vulnerable to static discharge. Place dedicated low-capacitance ESD protection components near the antenna connection, and introduce surge protection circuitry for outdoor deployments.

  4. PCB Keep-Out Layouts: Keep a strict keep-out clearance zone around the module on your host board. Do not run copper pours, ground planes, or signal traces beneath the module or the antenna section to prevent parasitic parameters from detuning the RF circuit.

5.3 Regulatory and Operational Restrictions

  1. Frequency and Power Compliance: While 315MHz and 433.92MHz are license-free ISM bands in many regions, maximum effective radiated power (ERP) limits are heavily regulated by local authorities. Ebyte’s mainstream models carry SRRC approvals; formal qualification certs can be requested for bulk commercial builds.

  2. Unidirectional Transmission Limits: Superheterodyne architectures operate as simple simplex/unidirectional pipelines (Transmitter to Receiver) without built-in hardware handshakes or automated retries. For bidirectional command validation, consider migrating to transceivers based on FSK or LoRa topologies.

  3. Data Rate Constraints: ASK modulation models perform optimally at lower speeds. For best range and interference immunity, keep operational transmission rates under 9.6 kbps.

References

  • [1] Chengdu Ebyte Electronic Technology Co., Ltd. Ebyte IoT Product Selection Manual, 2024.

  • [2] Chengdu Ebyte Electronic Technology Co., Ltd. E160 Series Superheterodyne Wireless Module Datasheets,