Comet UHV-6 HF/ 6 MTR/VHF - 70cm Multi-Band Mobile Antenna. These Multi-band mobile antennas were developed for multipurpose operation. They transmit on preset 50/146/446 MHz, and with additional use of HF coils and elements, these antennas can easily be used for six or seven bands. Combine them with a Comet duplexer for multiple TX and RX at the same time. These versatile antennas go from tri-band to quad-band to a 5-band--you choose which coils to attach and in what combination. Specifications: 40MTRs /15 MTRs/ 20 MTrs/15 Mtrs/10 MTRs/ 6 Mtrs (plus below) Gain & Wave: HF - 50MHz 1/4 wave 0dBi 146MHz 1/2 wave 2.15dBi 446MHz 5/8 wave x 2 5.5dBi VSWR: >50 MHz 1.5:1 or less <50 MHz 2:1 or less Max Power: >50MHz 200W SSB/100W FM <50MHz 120 W SSB Weight: 14-19 ozs Length: 48” min 76” max (approximate) Connector: PL-259 Optional Coils: L-3.5 80 meter coil L-18 17 meter coil L-14 20 meter coil