Ham Radio Tools

Ham Radio Tools is a comprehensive offline-first solution specifically designed for amateur radio enthusiasts. This open-source toolkit offers a wide range of features, including RF calculators, antenna design tools, and grid-square utilities, all accessible without an internet connection. Developed by ZS6SHZ, this project aims to facilitate the calculation, design, and operation of radio systems, providing invaluable support to both novice and experienced operators.

Key Features

Ham Radio Tools encompasses a variety of tools organized into different categories:

• RF & Electronics: Tools for frequency and wavelength calculations, wire gauge determinations, complex impedance scenarios, Ohm's law, and more.
• Antenna Building: Design options for dipole, inverted-V, EFHW, vertical, J-pole, and Yagi antennas, complete with dimensioned drawings and material guidance.
• Station Planning: Tools to calculate feedline loss, link budgets, and matching networks.
• Mapping: Utilizes offline world maps and Maidenhead grids for distance and bearing measurements.
• Operating: Features band tables, callsign lookup, and common Morse code shorthand explanations.
• Listening & Propagation: QRM hunting guides, propagation reports using the DVOACAP model, and satellite pass predictions.

Easy Navigation and Use

Users can easily search for tools, save favorites, and switch between metric and imperial units. A user-friendly interface allows adjusting the display for optimal experience, including light and dark modes. The tool sidebar maintains session states, making it convenient to access frequently used features.

Offline Functionality

The suite is designed for offline use, guaranteeing reliability regardless of internet availability. Users can download and install the desktop version for consistent access to all features, alongside the option to run it via a web browser.

Sample Tools

• SWR / VSWR & Return Loss: Analyzes standing wave ratios and offers explanations on reflected power without oversimplification.
• Coordinate Converter: Accepts various formats for location input and displays results on offline maps.
• DIY Baluns & Ununs: Detailed templates for building RF transformers with connection diagrams and material recommendations.

Continuous Improvement

Support for the project can be provided through feedback, which can be submitted via GitHub Issues. The repository is regularly updated with roadmaps and changelogs to keep users informed of new developments.

Explore the extensive capabilities of Ham Radio Tools here. Gain insights, enhance designs, and operate with confidence in the world of amateur radio.