OPEK HVT-400B - 8-Band High Performance HF VHF UHF Antenna
The OPEK HVT Series Mobile Antennas are constructed of a rigid fiberglass core. This core is helically wound with copper wire and it is tuned to various band "tap" points.
The OPEK HVT Antenna is a shortened HI Q design and therefore it has a narrow SWR bandwidth, particularly on 80 meters. When measuring SWR adjust the SWR meter slowly across the band... no more than 5 kilohertz at a time. Otherwise, you may miss the resonant spot.
The OPEK HVT Series Antennas are intended for mobile installations; however, it is often used as a fixed base station or portable antenna. Below you will find a few installation tips.