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Why can't you connect to the repeater?

many customers would like to connect to the repeater, but sometimes they'll encounter errors, such as "repeater fail", and so on. Do you know why it is? today let's learn together.  ...

Read more  Ailunce HD1,  Amater Radio,  Repeater

Tips for upgrading the firmware of Ailunce HS2

Ailunce HS2 is an ultra-portable full-frequency full-mode SDR radio, and we're continuously upgrading the firmware. Do you try to upgrade to the latest firmware by yourself? the blog will show some tips when you upgrade the firmware of your Ailunce HS2.  ...

Read more  AilunceHS2,  HF SDR Radio,  AmateurRadio

How to set analog channel for Retevis RT3S?

RT3S is a very popular dual-band DMR amateur radio. The reason why it is so popular is not only that it uses superheterodyne for receiving, and the receiving effect is very good. but also it's easy to program. Today we will introduce three ways to program an analog channel for RT3S.  ...

Read more  Retevis RT3S,  Analog channel,  Amateur Radio

What's VFO?

At present, many amateur radios on the market not only have CH mode but also VFO mode. CH mode is also called Memory mode. In the mode, all commonly used channels that have been programmed in software can be displayed. So what is the VFO mode?  ...

Read more  Amateur Radio,  VFO Mode,  Ailunce HD1

What's APRS?

Many hams like to choose amateur radios with APRS function. Do you know what's APRS? How does it work?  ...

Read more  AilunceHD1,  Retevis RT73,  APRS

Why you can't switch to VFO mode on Retevis RT72

Many customers feedback they can't switch to VFO mode on Retevis RT72. Do you know how to switch to VFO mode on Retevis RT72? If no, you can check the blog. we'll show the all detailed steps that you need to do.  ...

Read more  Amateur radio,  Retevis,  VFO

Tips for programming Retevis RT3S in software

Retevis RT3S is a dual-band dual-standby DMR amateur radio. It supports to program in the software. Recently, many hams have encountered some problems when they program them RT3S. Today we will summarize these problems in the blog.  ...

Read more  Retevis RT3S,  Amateur radio,  Program tips

How to set GPS of Retevis RT3S?

Retevis RT3S is a dual-band DMR radio. There are GPS and NO-GPS versions to select. For the GPS version, you can receive and transmit GPS information. We will show the setting steps of GPS in the blog.  ...

Read more  RetevisRT3S,  AmateurRadio,  GPS

What to pay attention to when using the electron tube amplifier

The Electron tube power amplifier is the most common power amplifier of hams. we summarize some precautions when use the Electron tube power amplifier in the blog.  ...

Read more  Amateur Radio,  Electron tube,  Power amplifier

What's power amplifier of Shortwave?

At present, most of the radios we use are within 100W, or even below 50W. But with the increasing electromagnetic interference in cities, it has become more and more difficult to make QSO with hams around the world with only these radios. In order to improve the quality of communication and increase the transmitting power of the radio, it is necessary to buy a short-wave high-power amplifier to work with our radios.  ...

Read more  Shortwave,  Power Amplifier,  Amateur Radio