A wireless microphone, is a microphone without a physical cable. A transmitting circuit and a receiving circuit of the wireless microphone replaces the microphone cable , allowing users to move freely without being restricted by the connecting cable. Therefore, a wireless microphone is composed of a microphone, a transmitter and a receiver. A wireless microphone has to work with a receiver.
A single channel can only be used by one microphone for one receiver, and two microphones on the same channel will interfere with each other when used at the same time. If you need to use two microphones, please choose a dual channel receiver.
The dual-tuned true diversity has two sets of independent radio wave receiving demodulators, and then the better signal is selected through the diversity circuit to make up for the dead angle of the antenna and obtain the best receiving quality.
The program-controlled diversity has only one set of radio wave receiving demodulators, so the price is lower.
Pilotone is a term and technology created by CHIAYO and has been widely used in the industry.
The Pilotone is an improved design for the receiver's existing mute circuit. A secondary audio signal (usually 32.768KHz) is embedded in the carrier and then transmitted along with the transmitter's signal to enable the receiver to recognize the correct signal. The receiver unmutes or activates only when it receives a signal with a Pilotone frequency.
The Pilotone can prevent noise when the receiver is in standby or no signal from the transmitter. Besides, the transmitter has a switching delay circuit and generates no noise in power switch, needing no additional mute switch.
The SQUELCH (SQ) control is on the rear panel of the receiver or SQUELCH SETUP in the control page of LCD display, and its level has been set up. You may adjust it when strong RF interference is encountered.
When the transmitter is turned off but the receiver still has audio output, it is apparent that there is RF interference. At this time, just increase the SQ level to make the receiver filter out background noise when receiving it. However, the receiving distance will be shortened as the SQ level increases. Therefore, maximum receiving distance should be considered when adjusting the SQ level to eliminate noise.
"Compander" is originally created by CHIAYO combining "Compressor "and "Expander", a circuit design for reducing noise.
In a wireless microphone system, the sound signal will be compressed at a ratio of 2: 1 before transmission in order to bring this signal above the internal noise of the RF linking.
For example, a signal with 110 dB dynamic range will be transmitted with an effective range of 55 dB, lower than background noise (around 60 dB) . The receiver will identify and recover the signal with a ratio of 1: 2 when receiving it, providing a radio link with the best signal-noise ratio.
Is it possible to identify whether a receiver has a compander circuit? Yes. In a wireless receiving system without a compander circuit, a lot of background noise will occur if the transmitter is more than 20 meters away from the receiver. But a system with such circuit can reach up to 100 meters.
IrDA is the abbreviation of Infrared Data Association. It is a standard for the equipment which use infrared for short-distance transmission. (i.e. computers, PDAs and mobile phones) CHIAYO is the first company to apply this technology to wireless microphone products.
The biggest advantage of CHIAYO's IrDA technology is bidirectional data transmission between receiver and transmitter, with a click on the transmitter to synchrozize the receiver and vise versa. It is different from most unidirectional models seen on the market.
The purpose of a repeater is to extend the coverage of audio equipment, usually installed between the microphone and the terminal receiver.
Taking QR-2000N dual-channel system for example, as soon as the left receiver module receives the signal from the microphone, the right transmitter module sends the signal to the next QR-2000N receiver. This system can reach the longest operating distance through several transmitter modules.
Wireless XLRang Microphone System is used to expand the coverage of wireless microphones, with maximum coverage of 300 x 300 square meters like sports venues, campuses, malls and outdoor playgrounds. Each system has two wireless microphones. Multiple systems can operate simultaneously.
System configuration
Application in school
Application in factory_1
Application in factory_2
Application in amusement park
Application in racetrack
Please make sure the installed battery type corresponds to the setting. Set NiMH batteries to "NiMH" and non-rechargeable batteries to "AKLN". Short operating time should be related to the quality of the battery. When purchasing batteries, please first consider well-known brands such as: TOSHIBA, DURACELL, SONY, etc.
