A 3D isometric render of two telecom towers on a curved blue Earth segment, connected by a glowing straight line of sight with floating mathematical symbols on a white background.

LOS Distance Formula

Calculate Line of Sight (LOS) distance with our free tool. Learn the formulas, earth curvature effects, and atmospheric refraction factors for radio and radar.

May 31, 2025

3D visualization of a notch filter frequency response curve showing specific frequency rejection

Notch Filter Calculator

Calculate component values for Passive Twin-T and RLC notch filters. Includes center frequency tuning, Q factor analysis, circuit diagrams, and Bode plots.

May 30, 2025

3D illustration of three-phase sine waves and vector diagrams for power and current calculations

Three Phase Calculator

Calculate current (Amps), real power (kW), and apparent power (kVA) for three-phase systems. Includes power triangle visualization, formulas, and key concepts.

May 26, 2025

3D illustration of an electronic capacitor storing electrical energy with Joule measurement indicators

Capacitor Energy Calculator

Calculate stored energy in a capacitor using E = ½CV². Use our interactive tool to visualize the exponential relationship between voltage and electrical energy.

May 16, 2025

3D illustration of a wireless link budget showing signal gains and losses from transmitter to receiver

Link Budget Calculator

Calculate received power and link margin with our interactive link budget tool. Account for Tx/Rx power, antenna gains, and free-space path loss (FSPL) in dB.

April 23, 2025

Minimalist vector illustration of a digital thermometer integrated with a circular scale showing Celsius, Fahrenheit, and Kelvin units with a blue-to-red thermal gradient.

Temperature Conversion Calculator

A tool for converting between Celsius, Fahrenheit, and Kelvin.

April 22, 2025

3D visualization of a lithium battery with a digital countdown timer and energy consumption metrics

Battery Life Calculator

Estimate battery runtime based on capacity, consumption, and depth of discharge (DoD). Includes an interactive discharge chart and real-world factors.

April 10, 2025

3D illustration of a line-of-sight path between two points over a curved Earth horizon

Calculate radio horizon and assess signal path clearance for wireless links. This tool helps engineers, technicians, and RF planners determine if a direct line of sight exists, accounting for Earth’s curvature and atmospheric refraction.

March 27, 2025

3D diagram of the 1st Fresnel Zone ellipsoid between two radio antennas for signal clearance analysis

Fresnel Zone Calculator

Calculate Fresnel zone radius and clearance height with our free online tool. Ensure optimal wireless signal strength by avoiding obstructions in your RF path.

March 27, 2025

3D visualization of a PCB prototype with holographic cost breakdown and manufacturing parameter labels

PCB Prototype Cost Analyzer

Estimate PCB prototype costs instantly. Analyze how quantity, board size, layers, and surface finish impact your budget with interactive charts and expert tips.

March 23, 2025

PCB Reverse Engineering

PCB Forward Engineering

Design & Assembly

Test & Troubleshooting

Trace Width Calc

PCB Tools