Two-way chat.
Half-duplex over sound: you take turns. Hold Transmit to send; the link goes quiet while you do, then listens again. Open this page on both devices.
Click Connect to start listening
Compose
Max 64 characters. Enter to send. Compression accepts letters, digits, space, basic punctuation; uppercase becomes lowercase.
Faster is more error-prone. Both devices should use the same mode.
Reduces payload by about 25%. The other side auto-detects.
Show signal diagnostics
Detector
MicrophoneOffline
Frequency— Hz
Strength0%
Link stateIdle
Pipeline
Freq—
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Bit—
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Sync—
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Binary—
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Checksum—
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Text—
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Log
Waiting for transmission…
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