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The IARU satellite frequency coordination panel report an application has been submitted for an amateur radio payload to be hosted on the Tiangong space station.  ...

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?  ...

For GMRS users, the new $35 license fee changes will go into effect 30 days from the date of publishing in the Federal Register, which means they will now be in effect on 04/19/21.  ...

"Lone Worker" gives a tone at regular intervals to which the lone-worker needs to respond by pressing the PTT button. If the worker fails to respond, within the pre-defined time, the radio will then go into emergency mode, and help and support would be sent to them.  ...

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.  ...

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?  ...

the privacy tones are CTCSS tones, DCS tones, or PL tones, or Squelch tones. But, it should be understood that the privacy codes, as such, do not ensure the privacy of your conversation.  ...

Approved by Ministry of Industry and Information Technology of the People’s Republic of China, Beijing 2022 Olympic and Paralympic Winter Games special event amateur radio station has started to work until the closure of Paralympic Winter Games. Led by CRAC, the special event station(s) will base on radio control regulation published by Beijing government to work as many amateur radio stations all over the world.  ...

The 5-tone of the walkie-talkie is also often referred to as 5-tone signaling.  ...