Maximum of 6 Indicated Nautical Mile Range for greater airspace coverage. Ryan Patented Directional Top and Bottom Antenna System minimizes airframe shadowing and provides 360-degree coverage. TCAD detects altitude separation, trending, bearing and distance to threat between your aircraft and opposing traffic. Situational awareness is critical for avoiding mid-air collisions. Programmable Air Traffic Shield Area (ATSATM) gives the flexibility to choose airspace coverage from .5 miles to 6 nautical miles horizontal ±500 to 20,000 feet vertical. Passive Reception provides significant coverage in radar environments. Dynamic Shield automatically transitions into shield size modes for "hand off" convenience. Approach Mode eliminates tones caused by aircraft on the ground to reduce pilot distraction on final approach. Altitude Alerter function provides an alert to the pilot prior to the arrival at an assigned altitude or inadvertent changes in cruise altitude. Integral Density Altitude Calculator for quick computing without reference to chart or hand calculators, saving pilot’s time. Modular Lightweight System Components with no additional cooling needed. 4-Port Multi-Function Display interface capability provides an output for up to four displays. Transponder Based ADS-B upgradeable for future technology. Tracks up to 50 aircraft showing the three most imminent threats. N-Number display of mode S equipped aircraft provides pilot’s more information for best situational awareness.