Which band of cellular communication spectrum travels the longest distances with minimal signal interruption?

The low band, which operates under 3 GHz, is recognized for its ability to travel longer distances with minimal signal interruption. This is largely due to its lower frequency, which allows signals to effectively penetrate obstacles like buildings and other structures, reducing signal degradation. The signals in this range can also propagate over expansive areas, making them suitable for providing coverage in rural and suburban regions, where physical barriers might otherwise hinder performance.

In contrast, the high band (above 24 GHz) and mid band (between 3 and 24 GHz) frequencies generally experience more significant signal attenuation and shorter range. High band signals, while capable of delivering high data rates, struggle with distance and penetration. Similarly, mid band frequencies are better than high band but still do not match the reach of low band frequencies. Ultra band (below 20 KHz) is outside the context of typical cellular communications and is generally associated with applications like AM radio or other long-range communication systems, but it does not relate directly to modern cellular communication technologies.