Roger Wilco Radiotelephony practice · Stage 1 prototype
Connecting…

Radio

Westbury Approach Your callsign —

COM 1
Active 122.375

Type all six figures and press Enter. ↑/↓ step one channel, PgUp/PgDn one MHz.

80

Simulator: squelch off lets background noise through between transmissions.

Transponder
Mode

Four digits. Simulator rule: digits 0–7 only.

Synthetic training frequency. Not for real-world use.

Transmit

Hold Space or press and hold the button. Press before you speak and release when you have finished.

Microphone Off

Microphone set-up

Your browser will ask to use the microphone. Audio is sent only while you hold push to talk; the level check below stays on this device.

Input level (local only) No signal

Transmissions

    No transmissions yet. Make your initial call when ready.

    For troubleshooting and accessibility. Typed calls are recorded as typed evidence, never as spoken practice.

    Latency

    Release (or send) to first audible reply, measured here; other columns reported by the server.
    Call To audio STT Rules TTS 1st Server

    Settings

    Push-to-talk key Space
    0 · Standard

    Higher settings add band-limiting, distortion, hiss and static. Preview repeats the last station call on this device only, so you can adjust while you listen.