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How to do if Ailunce HD1 is killed by unknown person

We know, if we have two Ailunce HD1, we can kill and wake each other remotely, but how to wake up Ailunce HD1 if it is killed remotely by a stranger?  ...

Read more  Amateur Radio,  Ailunce HD1,  Kill

Why can't my HD1 set the RX frequency to 447.1875MHZ?

Do you know why can't your UV dual-band radio HD1 set the RX frequency to 447.1875MHZ?  ...

Read more  Amateur Radio,  Ailunce HD1

How to manually program Retevis RB22 talk to Ailunce HD1

Although Retevis RB22 is a semi-keyboard DMR radio, it also supports programs manually.  ...

Read more  Retevis RB22,  Ailunce HD1

How to judge whether the antenna is compatible with the walkie-talkie

How to judge whether an antenna is compatible with your radio? Generally speaking, how to judge whether an antenna can make your walkie-talkie achieve better reception?   ...

Read more  walkie talkie antenna

How to set the microphone speaker of Retevis RT73?

Retevis RT73 is the new generation of mini DMR ham mobile radio from Retevis. It not only has a built-in speaker on the radio, but the original microphone also has a built-in speaker. so you can set up our speakers according to your needs when you use the transceiver.  ...

Read more  Mobile radio,  Retevis RT73

How to set the Time Slot of Retevis RT73?

Retevis RT73 is the new generation mini DMR mobile radio of Retevis. We know that the time slot is also a very important part when setting the DMR channel, otherwise, it will fail to communicate successfully. Today we will talk about the precautions for the RT73 time slot setting.  ...

Read more  Retevis RT73,  Time slot

Retevis RB22 Dual Band DMR Radio

Retevis RB22 is a UHF frequency band DMR radio. It comes with semi-keyboard which brings you a new experience, and comes with a 1.77inch color screen which also provide you a wonderful visual experience.  Although it dont has the number key, but it also can do pront panel program.   ...

Read more  Retevis RB22,  Retevis DMR Radio

Overcharge protection of walkie-talkie battery

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

Read more  overcharge protection

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