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Advantages of 2.4G Hz RF Wireless

2.4G wireless technology, the working frequency is between 2.405GHz and 2.285GHz, is called “2.4G RF” for short. Frequencies in this frequency range are free channels in international agreement, that is, it needn’t any fee to pay for, 2.4G RF get its advantage developing and be widely accepted. Working in full duplex mode is the advantage and difference compared with 27MHz RF, 2.4GHz RF has a decisive advantage in anti-interference features to 27MHz RF.
2.4GHz RF can make data transmission in 2M bps, which is double of Bluetooth RF. Compare 2.4Ghz RF with Bluetooth RF and 27MHz RF, 2.4GHz RF has its superiorities on the features of anti-interference, power consumption and transmission range,etc.

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frequency-hopping spread spectrum
Frequency hopping is one of two basic modulation techniques used in spread spectrum signal transmission. It is the repeated switching of frequencies during radio transmission, often to minimize the effectiveness of “electronic warfare” – that is, the unauthorized interception or jamming of telecommunications. It also is known as frequency- hopping code division multiple access.

Spread spectrum modulation techniques have become more common in recent years. Spread spectrum enables a signal to be transmitted across a frequency band that is much wider than the minimum bandwidth required by the information signal. The transmitter “spreads” the energy, originally concentrated in narrowband, across a number of frequency band channels on a wider electromagnetic spectrum. Benefits include improved
privacy, decreased narrowband interference, and increased signal capacity.