Transmitting and Safety

Transmitting and Safety

📡 An amateur radio license is required to transmit. Transmitting keys the radio on the air under your callsign. No license? Start here.

Transmitting in Handi-Talky Commander is operator-initiated and fail-safe by design.

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The transmit gate

• Transmit is gated on a configured callsign and the Allow-Transmit switch (Station tab). With either unset, the app will not key the radio — and SendPacket enforces this in code too, so the gate can't be bypassed by a background feature.
• PTT is press-and-hold — the radio keys only while you hold, and un-keys the moment you release or the pointer leaves the button.
• The app never transmits on its own. Every transmission is a deliberate action you initiate.

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Your responsibilities as operator

• You are responsible for using a frequency, power level, and mode permitted by your license.
• When testing, a dummy load and low power are good practice.
• Writing channels reconfigures the radio's memory — it's a deliberate, connection-gated button press, not something that happens automatically.

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Recommended setup before first transmit

1. Set your callsign and Station ID on the Station tab.
2. Confirm the radio is on a frequency/channel you're authorized to use.
3. Only then flip Allow-Transmit on.
4. Use a dummy load / low power while you confirm things behave.

Leaving Allow-Transmit off is a safe default for receive-only operation (monitoring APRS, listening to voice, capturing packets).

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See also

• Getting Started — identity setup walkthrough.
• Features — what each TX-capable feature does.