This chart is designed to help you determine if your Shure Wireless Microphone system is legal to use in the United States. This chart only applies to US-based customers. If a frequency band is not listed here, it was not sold in the United States and may not be legal to use. Frequency bands listed in red are also not legal to buy, use, or sell in the United States anymore. Always verify that.. Shure UHF Wireless (J4 Band: 554-584 MHz) Frequency Compatibility Chart Shure UHF Wireless Systems in the United States are available in the J4 Band (554-584 MHz), the M4 Band (662-692 MHz), the UA Band (782-806 MHz) and the UB Band (692-716 MHz). In the J4 Band, up to 24 Shure UHF Systems can be operated simultaneously in a single location using the following compatibility groups. (Additional.
![Shure PGA57 Frequency Response Graph with [SAMPLE AUDIO]](https://microphone.wiki/wp-content/uploads/mic-content/frg-images/shure-pga57-frg-image.png "Shure PGA57 Frequency Response Graph with [SAMPLE AUDIO]")
ULX-G3 Programmed Frequency Chart. Important Note: Before assigning wireless microphone frequencies, check whether the area of operation has any of the TV channels in the 14 -20 range reserved for Public Safety communications systems. If any of the TV channels are reserved, do not assign wireless audio to the corresponding frequencies.. FREQUENCY BAND J50A (572-616 MHz) Continued Group 1 Full Spec-trum, More Frequen-cies Group 2 Full Spectrum, Standard Group 3 Full Spectrum, Robust Group 4