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Something you need to pay attention to when you set scan function on Retevis RT3S

Scanning is a very common and important function for amateur radios. Therefore, when we set the Retevis RT3S scanning function, we often ignore some simple settings because of simplicity. Today we will summarize the settings that are easily ignored.  ...

Read more  Retevis RT3S,  scan

What's SSB and DSB

When using multi-band or even full-band radios, we usually need to choose the working mode, which includes USB and LSB, that means the Upper Side Band and the Lower Side Band. they are the SSB signals, and the DSB is the sum of the USB and LSB  ...

Read more  DSB,  SSB

How to know if you two radios can work together?

There are so many radio brands in the market and so more radios. how do know the radios that can work together?  ...

Read more  Amateur radio,  ham radio

How to set and show CH NAME on Ailunce HD1?

We not only can set and show CH number and frequency but also name for a channel on Ailunce HD1. but do you know how to set and show CH NAME on Ailunce HD1?  ...

Read more  Ailunce HD1,  amateur radio

The application of DTMF in walkie-talkie

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.  ...

Read more  DTMF,  Amateur Radio

What's 5-tone?

The 5-tone of the walkie-talkie is also often referred to as 5-tone signaling.  ...

Read more  Amateur radio,  5-tone

What's the 11 meter band

Recently many hams contact us and want to transmit the 11-meter band on Ailunce HS2. What's the 11-meter band?  ...

Read more  Amateur radio,  11 meter band,  CB band

Why my Retevis RT3S only has few items under radio settings menu?

Gregg emailed us and said that for some reason my RT3S only has "clock" and "voice announcement" under radio settings now after pushing a codeplug. Do you encounter the problem? if yes, let's learn how to solve it.  ...

Read more  Retevis RT3S,  MENU

What's the difference between Mechanical life and Electrical Life?

Recently we're doing the research of Ailunce FS01 footswitch for PTT, and the words including Mechanical life and Electrical life appear. Do you know what's the difference between Mechanical life and Electrical Life?  ...

Read more  Foot switch PTT,  Mechanical life,  Electrical life

What's the function of internal battery of Ailunce HD1

Do you know why the time of your Ailunce HD1 won't stop even though you turn off your radio? it's because of the internal battery. In addition to time, do you know what functions the internal battery affects?  ...

Read more  Amateur Radio,  internal battery,  Ailunce HD1