Davis Omni Antenna f/Long Range Repeater 
Omni Antenna for Long-Range Repeater
Use with Long-Range Repeater to extend range up to 1,560' in all directions. Each repeater requires two antennas. You can combine omni and Yagi antennas to collect data from all directions and transmit in a single direction, or vice versa.Includes mounting hardware.
FCC regulations require that U.S. customers select either the Omni Antenna (#7656) or the Yagi Antenna (#7660); customers outside the U.S. must purchase third-party antennas in compliance with local regulations
Quick Guide (pdf)
Owner's Manual (pdf)