Author Archives: Admin

What is Simplex, Semi-Duplex and Full-Duplex?

In telecommunication, a duplex connection is a connection with which can be communicated simultaneously in two directions. This is also known as full-duplex. That is to be able to distinguish it from the semi-duplex. Semi-duplex is a two-way connection with which communication cannot take place simultaneously in two directions. Communication takes place from the one […]

433 MHz frequency

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. Due to the absence of bidirectional communication and encryption, protocols are […]

The ISM Band

With the ISM (Industrial, Scientific and Medical equipment) band, use is made of the radio spectrum for non-telecommunication intended purposes, such as for heating / drying / cooking, power transmission, welding, accelerating chemical reactions, etc. Worldwide, there are a number of bandwidths designated that can be used for such applications. The ISM bandwidths are there for […]