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CW QSO is one of the important way to communicate with hams all around of the world. But do you know which modulation is it? let's learn how to identify the modulation of CW QSO in the blog.  ...

During the important period of global epidemic prevention and control, the claim that amateur radio might soon be your only way to communicate bring up again. Because so many people do things online, the internet and mobile communication network become narrow even crash to affect for normal communication.  ...

Many customers tell us their Ailunce HD1 keep getting the error of No Contacts by email. Do you encounter the problem? Why do you get the error of No Contacts? there are two key points to pay attention to for you.  ...

Many customers get errors when upgrading firmware because the radio doesn't enter DFU mode successfully. So, we need to distingguishi standby mode, DFU mode, and initialization mode to prevent operation errors.  ...

The polarization of antennas refer to the space vector direction of the electric field of the antenna in its maximum radiation direction. There are three polarizations including linear polarization, circular polarization, and elliptical polarization. Among them, linear polarization and circular polarization are more common.  ...

As we all know, the transmission distance of VHF and UHF signals is very limited in normal, but under certain conditions, long-distance or even ultra-long-distance transmission can also be achieved.  ...

Compared with average people, hams uses the radio more often. So it is necessary to know some maintenance and common troubleshooting methods of the two-way radio.  ...

The antenna is the important part of amateur radio. There are many antennas for amateur radios. today we'll learn another antennas besides original antenna.  ...

Ailunce HD1 is a dual-band DMR radio, and can also be adjusted to single-standby and display time information. Today I'll show two ways to update date and time on Ailunce HD1.  ...

Almost all hams want to build their own radio shack, then they can better connect with amateur radio stations around the world (QSO). but how to do, and what you need to build it?  ...