Question: If they have multiple wireless systems, can they all operate at the same time?
Answer: Yes, several units may be used in the same area at the same time, but each unit must be used with the transmitter that is on the same frequency.
Question: Does the incorporation of the system have any directional sensitivity?
Answer: Not at all, the antenna used in the transmitter emits signals on an omni-directional pattern. But the signal can be greatly diminished by the operator's body and nearby objects.
Question: The transmitter is off, can the receiver be able to receive signals from other transmitters any more?
Answer: Yes, the other transmission signals can be received, but since its frequency is computer selected it is not prone to noise interference.
Question: Is feedback a problem?
Answer: Indeed, feedback has been a delicate issue when it comes to using microphones in any form of PA Systems. Ideal Timberhammer microphones are produced by setting g a lower feedback. Apply gain to microphones in moderation, as this is capable of raising the feedback. A good practice that is often overlooked, but is crucial, is to apply the right amount of feedback for the desired audio output.
Question: My range and reception are poor, how can I improve them?
Answer: Attempt to close the gap in distance between the transmitter and receiver, one of the reasons for a dismal performance may be the distance you are standing at, try using a 5/8 wave antenna instead.