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Time Signal Standard

Enable Summer Time / Daylight Saving Time (DST)

Manual Time Override / Custom Timezone

Audio & RF Optimizations

Output Volume

100%

Anti-Phase Differential Stereo Drive (2x Coil Voltage)

Inverts Right audio channel 180° to double magnetic flux induction across earphone coils.

WaveShaper Harmonic Overdrive

Enhances steep square wave transitions for stronger 3rd/5th harmonic RF radiation.

60-Second Real-Time Frame Inspector Offset: 0 ms | RTT: -- | Jitter: ±0.0 ms | Atomic Node: EDGE

Marker / Position Pulse

Binary 1 (0.5s / 0.2s)

Binary 0 (0.8s / 0.1s)

Second: --

Symbol: --

Field: --

⚠️ Safety Warning & Hearing Protection

DO NOT PUT EARPHONES IN OR NEAR YOUR EARS. This software emits high-amplitude high-frequency square waves (12–20 kHz) at 100% volume. Place earphones directly on or around the clock body only.

How to Use

1. Connect standard wired earphones into the headphone jack or USB-C/Lightning audio adapter.
2. Wrap the earphone cable 2 to 4 times around your radio-controlled clock near its internal antenna.
3. Set your device volume to 100% (Maximum).
4. Click 'Start Transmission' and trigger manual reception (REC/WAVE) on your watch/clock.
5. Wait 2 to 5 minutes for the timepiece to receive and validate 2–3 full frames, then click 'Stop'.

Operating Theory

Consumer audio sound cards cannot output 40–77.5 kHz directly due to the 20 kHz DAC ceiling. This tool generates high-amplitude square waves whose strong 3rd or 5th odd harmonics (e.g. 13.333 kHz × 3 = 40.0 kHz, 15.5 kHz × 5 = 77.5 kHz) radiate electromagnetic signals picked up by the timepiece's internal ferrite coil.

Supported Clocks & Watch Models

Casio: G-Shock Multi-Band 6 / Multi-Band 5, Wave Ceptor, Pro Trek, Edifice, Oceanus, Lineage.
Citizen: Eco-Drive Radio-Controlled, Attesa, Promaster, Exceed, Perfex Multi 3000.
Seiko: Radio Wave Control, Brightz, Dolce & Exceline, Spirit Smart, and Seiko Wall/Desk Clocks.
Other Brands: Junghans Mega, Braun, Rhythm, La Crosse Technology, AcuRite, Oregon Scientific, TFA Dostmann.
Not Supported: GPS-only watches (Citizen Satellite Wave, Seiko GPS Astron in satellite mode), Bluetooth-only watches without radio receivers, and standard mechanical/quartz watches.