Aircraft Scatter
AirScout Integration
Use AirScout AP predictions in candidate evaluation, the timeline and sked planning.
Learn more →Features
Contest tools, not just chat windows.
KST4Contest combines ON4KST chat, candidate scoring, AirScout workflow, sked handling, log synchronization and operator decision support.
ON4KST Chat
Dual Chat Categories
Log in to two ON4KST categories and handle both message streams in one station list and interface.
Learn more →Radio Workflow
DXCluster Server
Send direction warnings as DX Cluster spots to compatible logging software when a usable QRG is known.
Learn more →KST4Contest Features
Learn more →Logger Integration
Log Synchronization
Import worked stations and current frequencies from supported contest loggers so filters and band information follow the log.
Learn more →Operator Speed
Macros and Variables
Build recurring chat messages from configurable text blocks and variables such as the current QRG or locator.
Learn more →Contest Workflow
Priority Score System
Rank active stations from known context such as direction, activity, band, QRG, AP and sked information.
Learn more →Sked Management
Sked Reminder
Store planned contacts and issue configurable chat messages plus local alerts before the agreed time.
Learn more →Contest Awareness
Timeline View
Show AP-based priority candidates and scheduled contacts on a shared timeline.
Learn more →