Radio Horizon Calculator
Calculate theoretical radio horizon distance based on antenna height. Explore formulas, atmospheric refraction effects, and dual-antenna system link planning.
October 21, 2025
RF & Microwave Engineering
Advanced RF and microwave engineering calculators for high-frequency design. Analyze antenna propagation, calculate cable impedance, and estimate signal transmission loss with precision. Perfect for RF engineers optimizing wireless systems and maintaining signal integrity.
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.
October 5, 2025
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.
September 24, 2025
Noise Figure Calculator
Calculate cascaded noise figure and total gain using the Friis formula. Features multi-stage analysis, noise contribution charts, and RF system core concepts.
September 22, 2025
Wavelength Calculator
Convert frequency to wavelength, wavelength to frequency, or energy to wavelength. Features include electromagnetic spectrum visualization, formulas, and examples.
September 16, 2025
Coaxial Cable Impedance Calculator
Use this tool to calculate the characteristic impedance of a coaxial cable from its physical dimensions. Learn the formula, standard values, and the importance of impedance matching.
August 21, 2025
Friis Transmission Calculator
Calculate received power, distance, and antenna gain with our Friis Transmission Calculator. Includes free-space path loss and logarithmic formulas for RF design.
August 17, 2025
Signal-to-Noise Ratio (SNR) Calculator
Use this powerful, interactive calculator to measure the Signal-to-Noise Ratio (SNR) of your data. Whether you’re in audio, imaging, or communications, understand what your SNR means and how to improve it.
August 7, 2025
Attenuator Calculator
Calculate resistor values for Pi, T, and Bridged-T attenuators. Match impedance and achieve precise dB attenuation for your RF circuits with this free tool.
July 27, 2025
Antenna Gain Calculator
Quickly calculate the theoretical gain of a parabolic dish antenna with this interactive tool. Input your antenna diameter, frequency, and efficiency to instantly determine the gain in dBi. An essential resource for RF engineers and satellite communication enthusiasts to optimize signal focus and performance.
June 30, 2025