Radio Horizon Calculator
Calculate theoretical radio horizon distance based on antenna height. Explore formulas, atmospheric refraction effects, and dual-antenna system link planning.
February 9, 2026
PCB Tools
The ultimate all-in-one PCB tools and calculator hub. Access professional-grade utilities for circuit design, RF engineering, impedance matching, and manufacturing analysis. From basic Ohm’s Law to complex microwave propagation, get precise engineering results to optimize your hardware projects.
Antenna Height Gain
Calculate the correlation between antenna height and signal gain with this professional online tool. Determine how elevating your antenna affects signal coverage, path loss, and communication range. Essential for RF engineers and ham radio operators looking to optimize wireless link performance and overcome obstacles.
February 9, 2026
RF Line of Sight
Model wireless link viability with our RF line of sight tool. Calculate Fresnel zone clearance and Earth bulge effects to ensure reliable point-to-point signals.
February 9, 2026
Point-to-Point Wireless Distance
Calculate point-to-point wireless range and Fresnel zone clearance. Explore how frequency, power, and antenna gain affect distance for various link technologies.
February 9, 2026
Capacitance Charge Calculator
Easily calculate between charge (Q), capacitance (C), and voltage (V) with our interactive tool. Learn core capacitor concepts and visualize the Q=CV relationship.
February 9, 2026
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.
February 9, 2026
Wheatstone Bridge Calculator
Instantly calculate the unknown resistance in a balanced Wheatstone bridge. Input three known values to find the fourth. The circuit diagram updates in real-time to reflect the bridge’s state.
February 9, 2026
555 Timer Calculator
Easily calculate the output parameters for both Astable and Monostable 555 timer circuits. This online tool provides instant results for frequency, period, duty cycle, and pulse width based on your resistor and capacitor values. Perfect for rapid electronic circuit prototyping and design.
February 9, 2026