HAMRS
A portable logging application designed for Parks on the Air, Field Day and other operating activities, with offline logging and ADIF import and export.
Useful Radio Links
A few useful corners of the radio world: tools for the shack, projects to explore and resources for getting more from the hobby.
Logging & Software
World Radio League
A connected amateur radio logbook with contact mapping, contest tools and synchronisation across web, desktop and mobile devices.
Dire Wolf
An open-source sound-card modem and TNC for AX.25 packet radio and APRS, including digipeater and internet gateway functions.
Mac Ham Radio
News and software updates for amateur radio operators using Apple macOS and iOS.
Maps & Lookups
RepeaterBook
A searchable directory of amateur radio repeaters to help you find frequencies and access details at home or while travelling.
EI8IC Ham Radio Maps
A collection of amateur radio maps covering prefixes, CQ and ITU zones, grid locators and contest sections.
HamQTH
A free amateur radio callbook for looking up callsigns and operator information.
RadioReference
A reference database and community covering radio frequencies, trunked systems and scanner monitoring.
Amateur Radio License Map
An interactive map of US amateur radio licence holders, searchable by callsign, grid square, ZIP code or address.
Learning & Projects
Morserino
A versatile Morse code keyer, trainer and decoder with resources for learning and practising CW.
Dipole Antenna Calculator
A frequency-based dipole calculator with practical guidance for building a wire antenna.
ESP32 ISS Tracker
An ESP32 touchscreen project that tracks the International Space Station and other satellites, displaying positions and upcoming passes.
Equipment & Programming
RT Systems
Radio programming software and cables for managing memories and settings across a wide range of transceivers.
Unified Radios
Radio software, firmware and programming tools with integrated repeater directories and a device management portal.
Organisations & Emergency Communications
ARRL
The US national association for amateur radio, offering operating resources, education, news and advocacy.
Radio Society of Great Britain
The UK national amateur radio society, supporting the hobby through education, technical resources, events and representation.
SARnet Florida
Information and coverage resources for Florida’s statewide linked amateur radio repeater network.
FEMA NIMS Training
Training resources for the National Incident Management System, useful for understanding coordination during emergency response.