The 1-for-2 handheld wireless microphone means a dual-channel receiver and two handheld wireless microphones. The two microphones can be used at the same time.
It turns out that mainstream wireless microphones are all one-to-one, which is a receiver and a microphone. The two antennas of the receiver (that is, two receiving circuits) can overcome blind spots in reception and improve reception through diversity reception technology. Receiving efficiency. One for two, there are two microphones, and the receiver also has two antennas (that is, two receiving circuits). Nowadays, automatic selection controlled by the CPU is generally used to achieve the effect of diversity reception.
a. FM wireless microphone:
Commonly known as FM, it refers to the FM 88-108MHz international FM broadcast band. Early consumer wireless microphones used FM radios for reception. The system was simple and the cost was low. However, due to the use effect, they could not meet the requirements of professional quality. In the 21st century, they could only become toys for children or students.
The wireless microphone is composed of several pocket transmitters (can be placed in pockets, output power is about 0.01W) and a centralized receiver. Each pocket transmitter has a different Working frequency, the centralized receiver can simultaneously receive voice signals of different working frequencies from each pocket transmitter. It is suitable for occasions such as stage and podium.