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What's SSB and DSB

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  ...

Read more  DSB,  SSB

How to know if you two radios can work together?

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

Read more  Amateur radio,  ham radio

How to set and show CH NAME on Ailunce HD1?

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?  ...

Read more  Ailunce HD1,  amateur radio

How do you think about Privacy Tone?

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.  ...

Read more  CTCSS,  DCS,  Privacy tone

Why Roger Beep is important?

The roger beep is the pleasant tone that you hear at the end of a transmission when you let off the key when you stop the talking.  ...

Read more  Roger beep

Something you need to know about GMRS

General-mobile-radio-service (GMRS) What is it? and what is it good for? Today, let us talk about something you need to know about GMRS.  ...

Read more  GMRS,  GMRS Radio

Notice on Launching the Commemorative Amateur Radio Communication Activity for the Beijing 2022 Winter Olympics

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.  ...

Read more  Amateur Radio Communication Activity,  Beijing 2022 Winter Olympics

The application of DTMF in walkie-talkie

DTMF is the abbreviation of Dual Tone Multi-Frequency, that is, dual-tone multi-frequency. It refers to the sound or tone that the phone makes when pressing a number, where each key has two tones of a specific frequency, which are then transmitted over the voice channel.  ...

Read more  DTMF,  Amateur Radio

What's 5-tone?

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

Read more  Amateur radio,  5-tone

What's the 11 meter band

Recently many hams contact us and want to transmit the 11-meter band on Ailunce HS2. What's the 11-meter band?  ...

Read more  Amateur radio,  11 meter band,  CB band