Move an APRS object along a route via APRS-IS to advertise ham radio events

QSL Card Generator - request a user (mailto: kontakt@oeradio.at) or host it on your own.

OpenWebRX band monitor — detect carriers across SDR instances with notifications and recording

Coax cable attenuation calculator for ham radio operators — frequency-dependent RF feedline loss with live updates

Antenna dimension and matching calculator for amateur radio — dipoles, verticals, EFHW

Battery runtime calculator for portable ham radio stations

MCP server giving Claude, ChatGPT and Gemini direct access to 11 amateur radio tools

Interactive amateur radio band plan viewer — IARU Region 1

PrefixPlay - Lerne Amateurfunk-Rufzeichenprefixe / Learn Amateur Radio Callsign Prefixes

CQ rehearsal tool for ham radio — practice your calls before going on the air

QSO logging companion app for ham radio operators — quick contact tracking with export

FunkPilot - KI-Assistent for ham radio operators

Ham radio starter guide — learn how to make your first on-air QSO, step by step

Antenna radiation pattern visualizer for ham radio operators

WebRX - Amateur Radio Receivers

Fast-paced callsign memory training for amateur radio operators

Learn Morse code by navigating a fleet — a CW training game for amateur radio

Interactive ham radio repeater map — find FM, DMR and 70cm/2m relays near you