The FRS radio antennas are built into the radio and don come off. How come?
FRS: The radios were designed and manufactured this way because of Federal Communications Commission Rules and Regulations. The FRS is supposed to be a low power, short distance, family communication service. If you want more power and flexibility go with GMRS instead. By preventing you from modifying the antenna of an FRS radio the FCC is making sure users comply with the intended purpose of the radio service.