433 Mhz RF module - Transmitter & Receiver pair ASK

This is an ASK Hybrid transmitter+receiver module at 433 MHz. The transmitter Module employs a crystal-stabilized oscillator, ensuring accurate frequency control for best range performance. There is no requirement of external RF components except Antenna.

RF Transmitter Features:

• Frequency Range: 433.92 MHZ.
• Supply Voltage: 5 Volts
• Output Power : 4~16dBm
• Circuit Shape: Saw

RF Receiver Features:

• Receiver Frequency: 433.92 MHZ
• Typical sensitivity: -105dBm
• Supply Current: 3.5mA
• Frequency: 1MHz
• Low power consumption
• Operation voltage: 5 Volts

It's ideal for remote control applications where low cost and longer range is required. The transmitter operates from a 3-12V supply, making it ideal for battery-powered applications. The transmitter employs a SAW-stabilized oscillator, ensuring accurate frequency control for best range performance.

Not for Serial data: This device will not support direct UART communication when connected to PC or microcontrollers as there is a lot of noise always available on these frequencies and its an analog type technology. For remote control applications please use this module with Encoder and Decoder ICs like ST3778, ST3777, ST12, ST14 or HT12E/HT12D. These ICs implement packet communication which extracts data from noise and ignores the faulty packet. Same is not possible with UART type communication.

Range of transmitter is 100 meters when operated at 12V. If it is operated with 5V then range will be 50-60 meters. Range will also depend on receiver sensitivity.

Antenna can be simple wire of single core 17cm length, coiled or straight. Multi strand wires used as antenna don't give good result.

*Image shown is a representation only.