There is no compromise in the manufacturing of these antennas (Aloud series). The tapered stainless steel whips can absorb physical shocks without bending. The fibreglass version has a glossy polyurethane coating to provide extra corrosion protection for the internal copper elements. These individually tuned antennas are supplied with all the necessary parts for installation. w/ 3dB gain average, L 0,9m, 18m coaxial cable & PL259 connector.