Category Archives :Radio knowledge

As solar cycle 25 reaches its peak in 2024, the 10-meter band offers ideal conditions for long-distance (DX) communication. This blog explains how the sunspot activity improves radio propagation, making it the perfect time for amateur radio operators to explore the 10-meter band. Learn how to maximize your communication range with the right equipment, timing, and techniques during this solar maximum.  ...

Like VSB, ISB is also a modulation method between double sideband (DSB) and single sideband (SSB).  ...

in order to avoid this loss, a technique was chosen, which is a compromise between DSB-SC and SSB, called Vestigial Sideband (VSB) technique.  ...

 ...

Channel Busy Lock is a privacy feature that keeps communication lines open by preventing radios from listening or transmitting through conversations outside their talkgroup. Whenever the radio is not allowed to talk, you will hear a busy tone if you try to transmit.  ...

Try to recharge the battery after each charge. Use, this is more conducive to protect the health of the battery.  ...

DRM is a digital commercial broadcasting model that provides FM-equivalent sound quality to shortwave broadcasts.  ...

Why does amateur radio not support the CB band?  ...

Although analog walkie-talkies have become the norm over the decades, and in some cases, analog technology is indeed a very useful communication technology, DMR radios also offer many advantages over analog walkie-talkies.  ...

The FCC created the analog Private Mobile Radio (SMR) standard in the late 1970s and allowed two-way communication in certain frequency bands for commercial and commercial systems. Analog two-way radios have been the standard for decades since then, and have ushered in the zenith of their development. So why do people choose analog walkie-talkies?  ...