VHF Meander Collinear Antenna 162-174 MHz - Unity Gain; 4.3-10
VHF Meander Collinear Antenna 162-174 MHz has Strong Bandwidth Internally DC grounded for lightning protection and reduction of precipitation noise Tightly controlled radiation patterns for optimum coverage Patented Meander PCB design for optimum RF pattern stability Full band coverage Industry leading PIM ratings (-150 dBc) providing low IM and low noise characteristics for optimum performance Peak Instantaneous Power 25 kw The patented Meander collinear element design allows multiple half wave elements to be stacked without the variations in cable lengths and mechanical joints which have typified the construction techniques in high gain collinear antennas. With each dipole element being printed on a single sided PCB the susceptibility to passive intermodulation is practically eliminated. Placing the elements on a board not only controls PIM but also removes manufacturing variations so that each and every antenna will provide the same pattern, tilt and VSWR characteristics over its operating bandwidth.
Documents:
RFI COL51 Antenna - Datasheet