Antennas and 3G Sunset

When I upgrade my radio due to the nationwide sunsetting of 3G devices, will I need to upgrade the antenna?

RACO strongly recommends upgrading the antenna when upgrading the radio. While the older antenna may work to some degree, it would be at a very diminished capacity. 3G antennas are not able to use the 4G frequency, which will result in lost packets of information and slower performance as a result. With lost packets, the radio must resend those lost packets until the system acknowledges receipt.The radio also has an antenna detection module to ensure the best connection.
Here are the links to the 4G radio antennas: