The "Spectra", a patented Multiband design brings you unparalleled 4 band tuned antenna performance. For mobile usage 1/2 wave elements provide coverage on UHF and 800 to 1000 MHz. Low and High Band coverage is provided by our exclusive offset fed 1/4 wave elements. The compact 33" length adapts to all vehicles or indoor applications. The "Spectra" has a low profile Motorola type connector [NMO] base.