The CR 85-21 RD/S is a high-performance multi-band antenna designed for VHF and cellular applications. With a low-profile enclosure and whip design, it offers excellent omnidirectional coverage with a 10 dB gain. Featuring an impedance of 150 Ω and a VSWR of 2:1, this antenna ensures efficient signal transmission and reception. The frequency range of .15 - 16.2 MHz, with a center frequency of 8.175 MHz, makes it suitable for a wide range of communication systems. Its FME termination allows for easy connectivity, while the versatile mounting options, including screw mount, lug, and stud, provide flexibility for installation. Ideal for use in various environments, the CR 85-21 RD/S is a reliable and high-quality solution for enhancing connectivity.