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Category Archives :User Tutorial

Overcharge protection of walkie-talkie battery

All models of Retevis and Ailunce have overcharge protection function.  ...

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Something about 1750Hz tone

Retevis walkie-talkies basically have 1750 functions, and some walkie-talkies cover four types of single-tone pulse signaling, such as Retevis RT23, Ailunce HD1.  ...

Read more  1750Hz tone

Digital repeater or MMDVM hotspot? How to choose?

What is the difference between digital hotspot and MMDVM digital hotspot repeater?   ...

Read more  digital repeater,  MMDVM Hotspot

The Difference between Dual Standby and Dual Receive on Two Way Radios

Now no matter analog radio or digital radio dual band radio, they both have dual standby, but dual receive radio is not unusual; But do you know what is the difference between dual standby and dual receive?  ...

Read more  dual standby,  dual receive,  ham radio

Do you need Kenwood audio adapter for your Ailunce HD1

If you have Ailunce HD1, do you have the time that must use a Kenwood 2-pin mic, headphones, or other accessaries? If yes, the adapter is your savior.  ...

Read more  Amateur Radio,  adapter

Why set the color code

Recently, our ham cute came over to ask why we need to set the color code. today let's talk about the color code. Everyone who uses digital radios knows that the color code is an important parameter for setting the digital channel, but why do you need to set the color code? We need to understand the source of the color code.  ...

Read more  Amateur Radio,  Color code

How to set the shift Freq on Ailunce HD1

Ailunce HD1 is ham radio and supports Front Panel Programming. if we set the channel in simplex mode, the rx frequency is the same as the rx frequency. but how set the Shift Freq of the channel in repeater mode?  ...

Read more  Ailunce HD1,  Amateur Radio

How to do Factory Reset and Initialize on Retevis RA25

On Retevis RA25, if it seems to be malfunctioning because of wrong operation or setup, you can do a factory restore or initialize on the mobile radio directly.    ...

Read more  Retevis RA25

Display Technology used on Walkie-Talkies

There are different types of display screens used on walkie-talkies, such as the segment code screen that can often be seen on Yaesu, the TFT color display that is currently seen on some two way radios, and the dot matrix screen on the entry-level machine Baofeng UV5R. Below we Just learn about the technology of these screens.  ...

Read more  Display Technology used on Walkie-Talkies

How to tune Ailunce AY04?

Ailunce AY04 is the High Gain Yagi 144&430 MHz Directional Antenna, and we can install it easily, but do you know how to tune it?  ...

Read more  Ailunce AY04,  Yagi antenna