Fresnel Zone Clearance and Antenna Height Calculator
Check Fresnel-zone clearance over an obstacle and calculate antenna height needed at either site or both sites.
Check Fresnel-zone clearance over an obstacle and calculate antenna height needed at either site or both sites.
Calculate free-space path loss, receiver power, EIRP, and margin using direct dBm or watts, MHz or GHz, and common distance units.
Calculate water pipe pressure loss, allowable GPM, or required inside diameter for Schedule 40 PVC using pipe length and temperature.
Compare cash purchase, financing, and Lighting as a Service costs for a commercial LED project using your quotes and energy use.
Estimate LED video wall maximum power, current, minimum circuits, and circuit headroom using cabinet label data.
Check whether one PoE switch has enough watts, powered ports, and PoE type support for a lighting fixture schedule.
Turn an LED L70 or L80 hour rating into a group replacement date, fixture quantity, and remaining operating life.
Size an emergency-light battery or estimate runtime using itemized loads, minutes, battery voltage, and Ah, mAh, or Wh capacity.
Estimate parking garage LED and adaptive dimming savings, net costs, and simple payback using your fixture, schedule, rate, and quote data.
Estimate commercial sign LED retrofit electricity savings, kWh reduction, and simple payback from total sign power, operating hours, and bill rate.