How 433Mhz and 868Mhz communication works
Communication on 433/868 works with radio frequency waves on those frequencies. These waves are transmitted and received by a radio transceiver with an antenna. On these bands, a couple of communication methods can be used, called radio modulations.
The most commonly used radio modulations on 433 and 868MHz are ASK (Amplitude-Shift Key) and variations of FSK (Frequency-Shift Key) like BFSK or GFSK. Basically, they define how data is transmitted: ASK uses differences in Amplitude (transmitting power) to create waves/data transmission. FSK uses slight differences in frequency instead. Nearly all 433/868 devices support just a single radio modulation. Often for controllers, this is ASK modulation for 433 and FSK modulation for 868 MHz. However, in order to enable our antenna to work with as many devices as possible, we have made sure that both radio modulations are supported on both technologies.
The C&T RF antennas Inc locates in Dongguan City, Guangdong province, was established on May 12, 2011. The company is specializing in the production of 2.4G antenna, 3G antenna, AP antenna, NB antenna, WIFI antenna, Vehicle DVB-T, ISDB, ATSC CMMB antenna, digital TV antenna, 3G antenna, 4G antenna, spring antenna, high gain antenna, mobile phone antenna, router antenna, GSM/CDMA/GPRS antenna, GPS antenna, navigation GPS communication antenna, RF connector, RF cable assemblies, etc, with good production environment, professional production and testing equipment and advanced production technology, perfect testing standards and quality management system.
The company also has a senior team in management and engineering, and business development staff.
With strong R & D capabilities, our products currently face both domestic and foreign markets, mainly serving the industries of automotive, computer, wireless router, satellite positioning navigation, ship, satellite communication etc.
Why Choose Us?
We have a good production environment, professional production, and testing equipment and advanced production technology, perfect testing standards, and quality management system
Our mission is professional, concentrative, best quality best service responsible for our customers!
Concurrent radio, as well as switched Smart Antenna options, are available.