An Advantage of 6.25 kHz Radios—Improved Usable Range

 

Improved usable range extends communication across various industries. Icom’s latest video highlights a significant advancement in radio technology that improves usable range, offered through NXDN 6.25 kHz radios compared to traditional 12.5 kHz models.

The video explains how NXDN radios, operating at 6.25 kHz, provide a more usable signal over the same distance as 12.5 kHz radios. This advantage, secured by reduced white noise interference in the narrower 6.25 kHz bandwidth, generates an improved usable range. The analogy of hearing whispers in a quiet versus a busy restaurant effectively illustrates how a smaller slice of the electromagnetic spectrum results in less noise power and clearer audio.

Key takeaways from the video include:

  • 25 kHz radios have a three-decibel improvement in audio quality over 12.5 kHz radios.
  • The smaller bandwidth of 6.25 kHz results in significantly less white noise interference.
  • Icom’s IDAS radios utilize NXDN technology for enhanced communication clarity and range.

This video is a must-watch for professionals in sectors like construction and retail, where reliable and extended-range communication is crucial. Icom’s IDAS line, with its NXDN technology, emerges as a robust solution for efficient and clear communication needs.

Recent Episodes

In February 2026, an international team of 24 amateur radio operators will embark on a bold mission to one of the most remote and inhospitable places on Earth—Bouvet Island. Among the world’s most isolated islands, Bouvet offers no harbor, no shelter, and no easy way in. Yet from this icy outpost in the South…

Few places on Earth are as inaccessible—and as coveted by amateur radio operators—as Bouvet Island. Located in the South Atlantic, this uninhabitable rock has long been regarded as the “Mount Everest of DXpeditions.” According to the DXCC Most Wanted List, Bouvet ranks near the very top of sought-after contacts, making every attempt to activate…

Bouvet Island sits at the edge of the world. It is frozen, uninhabited, and almost impossible to access. Fewer people have set foot there than in space. That level of remoteness is exactly what makes it so valuable to amateur radio operators. The island ranks tenth on ClubLog’s list of Most Wanted DXCC entities,…