DTMF Decoder is also used for receiving data transmissions over the air in amateur radio frequency bands. • The signal is encoded as a pair of sinusoidal (sine wave) tones from the table below which ...

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1. **Long-Range Communication**: The BAOFENG UV-5R handheld radio boasts an impressive communication range of up to 1000 miles, making it an ideal choice for ham radio enthusiasts, professionals ...

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Simple android app for generating Dual-Tone Multi-Frequency (DTMF) tones for testing or signaling purposes. Outputs to audio using AudioTrack. All 16 buttons available.