Category Archives :Amateur Radio Topics

There are three common types of radio scanners for us to select, including the basic analog scanner, the analog trunking scanner, and the digital scanner.  ...

Many hams not only like to make QSO with their friends but also scan the channels near them. so they are more willing to use the scanner to scan and monitor directly than using the scanning function of the walkie-talkie.  ...

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.  ...

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

Whether it’s driving or exploring outdoors, walkie-talkies are definitely the best choice, because as long as the walkie-talkies are within a certain range and the frequency is adjusted, they can communicate happily. No dialing is required, and no extra costs will be incurred. If you are driving with a fleet , So that you can communicate with each other.  ...

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.  ...

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.  ...

If you play with the coaxial cable, you probably know it is available in a number of different impedances. but the most common is 50ohm coaxial cable for us to use for amateur radio. Do you know why is 50ohm, or any other number?  ...

POTA is short for Parks on the Air. It is a radio outdoor communication activity initiated by American Hams. The activity frequency bands include HF/UHF/VHF, etc., and the communication modes include voice, digital, CW, SSTV, etc. If you enjoy outdoor communication, you can participate in this activity by querying the NPOTA park map on Google Maps under the conditions of the operating permit.  ...

Combiner is a words often mentioned by hams who uses multi-band radios, so what is a combiner? Why do we need to use a combiner? Let’s learn more about the combiner today.  ...