The Laird CW1503 base loaded, 5/8 wave antenna operates within the VHF frequency range, 150 – 162 MHz. This coil antenna delivers high performance, with a gain of 3 dB. Maximum power input is 200 W.brbrThe 48.5 in chrome whip antenna has a black coil base. The spring is not included. Order NMO mount separately for your Laird VHF mobile antenna.