KST4Contest is an open-source desktop client for the ON4KST amateur radio chat, designed specifically for VHF, UHF and SHF contest operation.

It combines ON4KST chat with contest-oriented station prioritization, sked management, AirScout aircraft-scatter information, map and path analysis, DX Cluster integration and worked-status synchronization.

KST4Contest also integrates with contest logging and station software including Win-Test, UCXLog and PSTRotator.

The software is available for Windows, Linux and MAC OS.

For downloads, documentation, screenshots and further information, visit the official KST4Contest website.

Features

  • PSTRotator Control
  • AirScout Integration
  • Band Recognition and Opportunities
  • Priority Score System
  • Sked Reminder
  • Directional Opportunities
  • TRX/QRG Synchronisation
  • Automatic Private Replies
  • Private Message Handling
  • Macros and Variables
  • QSO Monitoring
  • Automatic QRG Detection
  • Local DX Cluster Server
  • Station Map and Path Analysis
  • Log Synchronisation
  • Combinable Station Filters
  • Dual Chat Categories

Project Samples

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KST4Contest Web Site

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Additional Project Details

Registered

2026-08-09