Why Are Some Channels Preferred?

• GAA: This "third-tier" user must vacate or reduce power when a PAL or radar is actived, which is why they prefer to stay above channel 10 (no PAL, low radar risk) where possible.

• PAL: PAL owners decide their channel assignments. The imbalance in PAL channel adoption is possibly a simple reflection of staggered deployment by those respective PAL owners.

Key Bridge commentary:

This chart and data provide more of a curiosity than deep insight. The utility and preference of channel selection is driven entirely by local network requirements and environmental effects.

We think the relative unpopularity of channels 5 through 10 revealed in the top chart is actually just an artifact of the "blended" use of GAA plus PAL channels by networks operating in this frequency range.

A stacked chart showing the combined GAA plus PAL counts reveals a fairly homogenous channel selection across the entire CBRS band.