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For hams, software and firmware are often used by us. Do you know the difference between them? Why does amateur radio need both software and firmware?  ...

For amateur radio, whether to support firmware upgrades is a very important feature. Firmware refers to a collection of software embedded in the hardware of walkie-talkie, similar to EPROM, EEPROM, or flash memory. So, why does the walkie-talkie need to upgrade its firmware?  ...

When talking about the gain of antennas and power amplifiers, the dB is often mentioned, but do you know what it means and how do we use it?  ...

Mic gain is one of the important settings of amateur radio. It controls the volume of transmission. Do you know how to set the mic gain? the blog will show how to set the right mic gain.  ...

Are you ready to travel with your Ailunce HD1? Now you only need to take a video or pictures to show your Ailunce HD1 and post it. You can get a Surprise gift. As long as you actively participate, everyone has a gift！  ...

If the radio supports the rolling code, you just need to make one codeplug to program many radios. the blog will show how to use the Rolling Code of Retevis RT73.  ...

OTAP is short for Over-The-Air Programming. OTAP radio doesn't need to use the programming cable to connect the walkie-talkie with the terminal (computer or mobile phone), and remotely program the walkie-talkie through the network or base station.  ...

The desktop microphone is one of the commonly used devices in the Ham Room. However, there are many desktop microphones on the market, with various functions. The following are some features we sorted out. What features do you need?  ...

With the popularity of radio, many hams built their radio rooms. In addition to basic equipment such as radio and power supply, we found that they always like to purchase desktop microphones. Do you know why they have to buy a desktop microphone when owning a handheld microphone?  ...

ACS is short for Adjacent Channel Selectivity. It is a measure of the receiver's ability to receive useful modulated signals and is an important parameter of radio receivers.  ...