Blog

What to look for when buying a walkie talkie? Is the more features of the walkie talkie the better? The answer is no. In brief, the right is the best, it don’t depend on the number of features.  ...

If you play with the coaxial cable, you probably know it is available in a number of different impedances. but the most common is 50ohm coaxial cable for us to use for amateur radio. Do you know why is 50ohm, or any other number?  ...

Ailunce HS2 is an ultra-portable full-frequency full-mode SDR radio. There are many setting items for the user to set. So, if you want to use the Ailunce HS2 more masterly, you need to understand the setting menu clearly first.  ...

In the 2021 new year, we released a new version RT73 firmware which adds the digital APRS. Today, let us learn how to set up the APRS with RT73 software.   ...

Recently many customers feedback the contacts importing of Retevis RT3S works abnormal. so we sum up the problems. if you want to import the contacts list into the Retevis RT3S, or have problems when import the contact list, please try to check again refer to the blog.  ...

change the PowerOn Logo for Retevis rt73 dual band mobile radio.  ...

10-Common-Sense-of-Maintenance-of-Walkie-Talkie-Battery  ...

Firmware is basically a set of instructions needed for certain devices to perform the tasks that they were made for. we recommends that you update the firmware on your radio whenever new firmware becomes available. New firmware often fixes bugs, contains new features.   ...

We know that the shortest distance is straight line between two points. but it's often not simple when hams communicate with each other from around the world. Because it's not the shortest distance geographically if we connect two points directly on world map, we need to select the right direction of antenna to achieve the better communication effect. Especially for directional antennas, such as Yagi antennas. we must rely on the great circle Maps.  ...

We know when we upgrade the firmware or initialize the Ailunce HD1, the radio need to be in the right mode, such as it must in DFU mode, when we upgrade the firmware. Then when we program the Aliunce HD1, must the Ailunce HD1 be in a particular state?  ...