The PNI Extra 40 antenna is the smallest CB antenna (it has a height of only 44 cm - base included) that can be mounted both on cars and on vans or minibuses. Its small dimensions make it almost imperceptible, easily confusing with the radio antenna. 
The PNI Extra 40 antenna has the characteristics of a large antenna: SWR 1.0, impedance 50 Ohms, frequency 26-28 MHz.
    The PNI Extra 40 CB antenna is easy to mount, by simply screwing the spike on the magnet fixed on the car dome. The antenna is pre-calibrated from the factory.