Category Archives :Radio knowledge

The Difference Between GMRS and Ham Radio  ...

What ham radio accessories do you think is very helpful in your amateur radio journey?   ...

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.  ...

Nowadays, many car friends have various self-driving FB activities, and many car friends organize their colleagues, relatives, and friends to drive together so that there will be problems with communication requirements between vehicles, radio will play a very important role in self-driving and multi-vehicle travel.  ...

An important principle to be followed by the host installation is to be able to provide enough heat dissipation space because when the radio host is in the transmitting state, the heat is very large.  ...

What I want to share with you today is the specification of the use of walkie-talkie in motorcade travel. You must know that the mobile radio is not only about buying and installing, but also about the way of speaking during communication.  ...

"If the antenna feed is not well-matched, it will burn the power amplifier." That is, if the standing wave ratio is high, there will be the risk of burning the power amplifier.  ...