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Compared with business radios, amateur radios have more and more complex functions, so the operation and setting process often leads to abnormal use intentionally or unintentionally. Therefore, almost all amateur radios allow to reset to factory.  ...

How does the GPS of Ailunce HD1 work with Retevis RT3S?  ...

Why set bandwidth for Ailunce HD1？  ...

When we set up a handheld UV radio, we can hear the information of the same channel no matter whether the bandwidth is set to wideband or narrowband, but when we use an SDR radio, if we set different bandwidths, we can often hear different sounds. So, how do we set the bandwidth of the SDR radio correctly?  ...

Amateur frequency resources are provided by the country to all hams, so repeaters working in the amateur band, even if you set up and maintain them yourself, need to provide services for all hams in the coverage area, let's learn together today What problems should be paid attention to when setting up an amateur repeater. ​  ...

Retevis RT97P is a Mini and Portable size DMR repeater. Do you know how to set and use the repeater?  ...

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.  ...

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  ...

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

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?  ...