433MHz RF Wireless Transmitter & Receiver Module Pair
Compact ASK/OOK 433.92MHz Radio Frequency Link Kit for Arduino & Microcontrollers
The 433MHz Wireless Receiving and Transmitting Module Set (YXA483) is an ultra-compact, cost-effective RF link pair consisting of a square transmitter board (FS1000A) and a rectangular super-regenerative receiver board. Operating on the license-free 433.92 MHz ISM radio band, this set uses Amplitude Shift Keying (ASK / OOK) modulation to transmit short-range digital data without complex network overhead. Driven by low-power operation, the transmitter accepts supply voltages between 3.5V and 12V DC—where higher voltage yields stronger signal output—while the receiver runs on a stable 5V DC supply. It is widely utilized in DIY microelectronics for simple wireless tasks such as remote control keyfobs, garage door triggers, wireless doorbells, and basic telemetry systems.
VirtualWire or RadioHead, which handle encoding and decoding of serial data packets. Out of the box, the pair achieves an line-of-sight range of roughly 20 to 50 meters; however, soldering a simple
Technical Specifications
| Component / Feature | Transmitter Module | Receiver Module |
| Operating Frequency | 433.92 MHz | 433.92 MHz |
| Modulation Type | ASK / OOK (Amplitude Shift Keying) | ASK / OOK (Amplitude Shift Keying) |
| Operating Voltage | 3.5V – 12V DC | 5.0V DC (±0.5V) |
| Quiescent / Working Current | ~10mA – 40mA (Voltage Dependent) | ≤ 5.5mA |
| Data Rate / Transfer Speed | Up to 4 KB/s | Up to 4 KB/s |
| Transmission Distance | 20–50m (Standard) / Up to 100m+ (With Antenna) | Receiver Sensitivity: -105 dBm |
| Optimal External Antenna | 17.3 cm single-core wire ($1/4$ wavelength) | 17.3 cm single-core wire ($1/4$ wavelength) |
| Pin Configuration | 3 Pins: DATA, VCC, GND | 4 Pins: VCC, DATA, DATA, GND |