Compatible with select networking HELIX models and ONIX, Humminbird CHIRP Radar features CHIRP pulse compression and delivers superior radar imaging on both long and extremely short ranges. This translates to better situational awareness in low-visibility conditions and helps identify birds and floating obstacles for clues on where the gamefish are located. You can also track weather and vessels with amazing definition. Features:• Antenna Dimension - 21" Enclosed Dome• Antenna Type - Patch Array• Peak Power Output - 20W• Transmit Frequency - 9354 to 9446 MHz• Beam width (nominal) - 4.9° Horizontal and 20° Vertical• Input Voltage - 12/24V DC (Minimum - 10.8 Volts, Maximum - 31.2 Volts)• Networking - Ethernet• Maximum Range Scale - from 1/16 to 24 nautical miles• Power Consumption - Transmit mode - 17W; Standby Mode - 7W; Sleep Mode - 2W• Duplexer - Circulator• Pulse Widths @ 3 dB - 40 ns to 14.7µs• CHIRP Lengths - 400 ns to 20µs• CHIRP Bandwidth - Up to 32 MHz• IF Bandwidth - 26 MHz• Noise - Less than 4 dB• Polarization - Horizontal• Waterproofing - IPX6• Weight - 12.3 lbs.• Compatibility Networking HELIX models and all ONIX models Better situational awareness in low visibility Meets IPX6 waterproof standards | Humminbird HB2124 CHIRP Radar Dome