Daily Archives:January 30,2022
The application of DTMF in walkie-talkie
- Jan 30,2022
- Yamy
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- Amateur Radio Topics
DTMF is the abbreviation of Dual Tone Multi-Frequency, that is, dual-tone multi-frequency. It refers to the sound or tone that the phone makes when pressing a number, where each key has two tones of a specific frequency, which are then transmitted over the voice channel. ...
What's 5-tone?
- Jan 30,2022
- Yamy
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- Amateur Radio Topics
The 5-tone of the walkie-talkie is also often referred to as 5-tone signaling. ...
What's the 11 meter band
- Jan 30,2022
- Yamy
- 0 Comments
- Amateur Radio Topics
Recently many hams contact us and want to transmit the 11-meter band on Ailunce HS2. What's the 11-meter band? ...