Related issues regarding the use of conference microphones

In today's increasingly frequent communication among people, meetings have become an important part of their lives. Whether it's business negotiations, product demonstrations, guest meetings, issuing orders, etc., a conference system is required. I believe there are some issues with the use of conference microphones. Below, I will briefly answer some related questions about the use of conference microphones.

Can two microphones of the same frequency be used simultaneously?

Cannot be used simultaneously. Line transmission cannot 'mix' in air, and even at the same frequency, the receiver cannot mix two transmitted signals. For example, two FM radio stations cannot transmit signals on the same frequency. Because it can cause confusion and result in audio distortion. So, each wireless transmitter should have a separate receiver with its own frequency.

What is the frequency difference between wireless microphones to avoid interference?

It depends on the situation, but at least 4MHz is required. We cannot provide a clear answer to this question here as it involves complex calculations. In general, cheaper wireless systems require a larger frequency difference because their receiver designs are simple and have fewer options. This limits the number of compatible channels. Systems with higher prices have better filtering performance, closer distances between channels, and correspondingly more compatible channels.

UHF is better than VHF, right?

These two frequency bands used for wireless microphones have their own advantages and disadvantages. This depends on the user of the frequency band, the physical characteristics of the frequency band, and the adjustment limits of the frequency band.

Can UHF systems be compatible with VHF systems?

Yes, even if the maximum number of compatible VHF systems is used, it can still be compatible with UHF. (However, it is not possible to connect the current VHF antenna/VHF splitter or VHF antenna distribution amplifier of the UHF receiver).