CB Radio: Sirio 827 High Performance 5/8 Wave Base Vertical Antenna.
827: The Sirio 827 base antenna is one of the most respected antennas around. High performance comes as standard and the 827 will let you transmit much much further than most conventional antennas, the build quality is superb, will give many years of service, and ideal also for amateur use on the very popular 10m (28Mhz) band too. Specifications: Type: 5/8 λ ground plane Radiation: Omnidirectional Polarization: Linear vertical Frequency range: 26.4 ... 28.4MHz Tunable Systems: 10m-HAM Gain: 1.5