RF Tools & Calculators

Hertzian is a personal learning project built to explore and understand RF concepts — it is not a professional or certified tool. The calculators and interactives on this site are provided for educational purposes only and may contain errors or incomplete implementations. Do not rely on these tools for real-world engineering, regulatory, or safety decisions. The site is actively under development and content may change frequently.

Calculators

Path Loss

dB Converter

Unit Converter

Link Budget

VSWR

Cable Loss

Fresnel Zone

Skin Depth

PCB T-Line

Noise Figure

Signal Analysis

Signal Generator

FFT Analyzer

Spectrum Analyzer

Modulation Explorer

SDR Waterfall

Design & Matching

Smith Chart

Block Diagram

Filter Designer

Wave Propagation

Antennas & Waveguides

Antenna Patterns

Phased Arrays

Waveguides

Waveguide Mode Patterns

Reference

Formulas

Spectrum Allocation

Blog

Disclaimer