No, you can never use two Mics on the same frequency because they will conflict with each other. Having one mic with two or more receivers works perfectly. Think about watching TV. You can watch Channel 4 as can all your neighbors. So VHF (and all RF signals) can be sent to thousands and even millions of receivers at once.
Mics are made to have 1 Mic and transmit to the frequency matched receiver. If you have 2 on the same frequency, the Mic nearest to the receiver will generally stamp out the one that is farther away. And even the nearer one will have problems as it competes with the other Mic. So, only one Mic can be used on a single frequency.
How Can 2-7 Mics Work At Once?
If you're wireless mic works on the VHF Professional TV band between the TV stations that you watch- it is possible. Each Mic operates on a different frequency or station just like TV stations. So just like you can watch Channels 2, 4 and 7 on 3 TVs in your house at the same time, you can use up to 7 Mics at the same time in the same place.
Each has a completely different VHF frequency and therefore uses a completely separate Pipeline or Highway through the air between the Transmitter and Receiver. None of the channels are any better or different in VHF quality from the others and each is far enough from the other so there is never any chance of interference.
Whether you use just 1 or all 7 frequencies has no effect on the other Mics. Each is 100% separate from every other Frequency. And each Mic is factory set so it can never drift or change.
Last update: 09:15 PM Friday, February 1, 2008