source:Industry News release time:2022-06-10 Hits: Popular:Brand bar audio wholesale
In the last issue, we talked about one or two points about the signal quality and distance of wireless microphones. Now we send it to discuss that the signal quality of wireless microphones directly affects the transmission distance. The signal quality (S/N) is closely related to the transmit power, the distribution of the spatial field strength, the quality of the receiver, the efficiency of the transceiver antenna and the situation of external interference sources.
(3) Transmitting power of wireless microphone
Increasing the transmit power can increase the transmission distance of the wireless microphone. However, the transmission power of wireless microphones is limited by the influence of radio waves on the human body, the pressure life of the power supply battery and the interference to adjacent equipment. The transmission power of commercially available products is limited to 2mW to 50mW. Due to the technical reasons of the device, the transmission power of the VHF frequency band is easier to make than the transmission power of the UHF frequency band, and the price is also cheaper.
(4) Measures to solve the fluctuation of electromagnetic wave field strength
Due to the reflection and absorption of indoor objects, the multi-path propagation of electromagnetic waves and other factors, the field strength of space electromagnetic waves is very complicated. When the distance between the transmitter and the receiving antenna changes frequently, the field strength of this fluctuation also changes. When the receiving antenna is in a weak field strength position, a "mute" point or poor sound quality occurs. To this end, the use of dual-antenna diversity reception technology (Diversity) and AGC automatic gain control technology in the wireless microphone receiver make up for it. The diversity receiving technology is to set two sets of the same receiving antennas and two receiving devices in the receiver, and automatically detect and automatically select the stronger one received signal as the current received signal through a computer chip circuit in the machine. With the cooperation of the control, the problem of "mute" point can be effectively solved.
Popular recommendation
MB210 Low Profile Bar audio set Merchant
2021-07-14XD18C Big sound bar Merchant
2021-07-26C15 Bar sound bar wholesale
2021-07-26C10 Sound bar manufacturer
2021-07-26Resolution 4D Downfill KTV audio Factory
2021-07-17Resolution 1.5TT Marten Audio company
2021-07-16Resolution 2 School audio company
2021-07-15F10 Nightclub sound Vendor
2021-07-26I8SUB Gymnasium audio Vendor
2021-07-26F101 Marten Audio Vendor
2021-07-16XD10 KTV audio manufacturer
2021-07-26MB112Anhui Bar Audio Vendor
2021-07-14What is the difference between U-segment and V-segment of wireless microphones?The bar needs sound e
2022-06-15What elements do audio equipment need?
2022-05-14How to configure the power supply for professional audio equipment?Bar use audio Vendor
2021-10-29Why do you want to do a delay test of speakers?Big sound bar sales
2021-12-23Baoan IOS Internet celebrity must punch bar special audio equipment--Mateng Audio
2022-04-21Which websites should you look at when entering the audio industry?
2022-03-23What kind of sound is considered to have good sound quality.Bar sound bar sales
2021-12-17What should I pay attention to when buying professional audio?Bar sound engineering Vendor
2021-11-18Well-known bar audio FUNKTION ONE Mateng audio
2022-12-20What are the new markets for professional audio?
2022-10-13Chongqing DNA high-end bar special audio---Mateng Audio,Conference room speaker price
2022-06-01Audio equipment.Conference room sound renovation plan
2023-04-17