Advanced Operations

Use this section when normal web UI operation is not enough and you need timing, calibration, direct configuration, service interfaces, or RF hardware details.

Start with Transmission Timing and Calibration when a transmission starts at the wrong time or RF frequency accuracy needs attention. For normal configuration and operation, use the User Interface.

Topics

• Transmission Timing and Calibration explains WSPR timing, GPIO and Si5351 frequency calibration, and manual AM zero-beat calibration.

• INI Configuration Reference documents the complete daemon configuration file, including WSPR, CW, hardware, and scheduling values.

• Configuration Troubleshooting explains recoverable CW timing validation and configuration reload failures.

• REST API documents the proxied HTTP interface, configuration operations, and version metadata.

• WebSocket Interface documents commands, runtime broadcasts, transmission lifecycle events, and browser synchronization.

• RF and Electrical Reference covers the GPIO PWM restriction, filtering, power-supply noise, isolation, and electrical protection.