What is the range of 433MHz RF module?

433MHz FM RF Transmitter Module with Transmit Range up to 300m.

How does a 433 MHz transmitter work?

The 433 MHz RF transmitter and receiver module is a pair of small RF (i.e. radio-frequency) electronic modules used to send and receive radio signals between any two devices. The transmitter module sends the data from the transmitter end and the Receiver module receives that data at the receiver’s end.

What devices use 433 MHz?

433MHz is a commonly used frequency band for all types of equipment that require little power, such as garage door openers, headphones, baby phones and remote controls. Also many inexpensive transmitters and receivers for switching devices and light dimmers operate on the 433MHz band.

How far can 433 MHz travel?

Realistically, the range you can expect at 433 MHz with helical antennas and a compliant transmitter is in the order of 100-300 feet outdoors and 30-100 feet indoors.

How do I know if a RF module is working?

Test the circuit by putting the antenna near a source of noise, like a computer monitor, or a motor, or your wireless access point, or your laptop’s WiFi antenna, or any other radio transmitter you have that you know works. Then, put it near your RF transmitter.

What devices operate at 433 MHz?

Can 433 MHz pass through walls?

Its very much dependant on which ‘433Mhz transmitter and receiver’ modules you are using. There are such modules, low cost, that will have no issues going through several walls, although of course it depends on the walls.

How do you increase the range of RF transmitter and receiver?

To increase the range of a transmitter one can either increase the power output, use a better antenna with more gain or place the antenna in a better location such as with FM broadcast or commercial 2-way radio place the antenna at much higher height. Same can be done at the receiving end.

How does RF module work?

This RF module is a combination of RF Transmitter and RF Receiver. The transmitter/receiver (Tx/Rx) pair operates at a frequency of 433 MHz. The RF transmitter receives serial data and transmits it wirelessly through through its RF antenna. The transmission occurs at the rate of 1 Kbps – 10 Kbps.

How do you test a RF signal?

A radio frequency test is performed by taking the device and placing it in an isolated area. The area is controlled to minimize electromagnetic interference with the device. From there, the device is monitored closely for any emissions that would interfere with the operation of other devices in the area.