Transmitter and receiver
The transmitter is the pack or handheld with the microphone element connected to it.
This is what the performer wears or carries onstage with him. This is battery powered.
The receiver is the unit that catches (or receives) the wireless signal from the microphone.
The receiver is what gets plugged into your PA or mixer to amplify the received microphone
All-in one systems
Sounds great doesn’t it?
These are systems that have some combination of these 4 elements
A mic like the Samson airline series combine the microphone and the transmitter together in one headset. Another combo you often see is a PA system with a built in receiver and an included microphone. These combos should all be avoided. They are not professional grade and they are inextricably tied to the equipment they came with. Let’s say you have a PA with a built in receiver and an included mic. What if the mic breaks? What if you want to start using a headset? You can see where your ability to grow, change your set-up is handcuffed. Also again aside from all that this is not pro level gear… they look convenient, but don’t purchase them.Everything should be flexible and replaceable That way it can be either swapped onsite
THE LAST REMOTE YOU WILL EVER BUY
Features of wireless systems in order of importance
#1 Selectable RF frequencies is SO important because you it allows you to avoid a competing RF or Radio Frequency. If a piece of equipment is on the same RF signal as you and it has more power behind it you are dead in the water. You’ll get dropped signals or worse pick-up what sound signal they are sending. Other RF signals are abundant in theaters and especially at outdoor venues. Imagine other acts and hosts with wireless mics not to mention the high power police, fire department scanners. Those will always overpower any mic near the same frequency and overtake your microphone.
Most mics have some sort of auto set-up for setting a clear frequency. This is performed by selecting something similar to the “easy” or “auto” set-up on your wireless system. The title varies from each device’s set-up menu but the concept is the same across the board. The receiver and transmitter can “talk” or pass information over their built in infrared lenses. These are built in just for this pairing purpose One you activate easy set-up mode you have to point the transmitter’s and receiver’s IR at each other the wireless receiver will look around for the clearest FR signal, choose that one then tell the transmitter to get on the same signal. Now the transmitter and receiver are locked together with the least obstructed RF channel, pretty nifty trick right?