Wireless Characteristics
Wireless Access Networks utilize radio frequency (RF) spectrum, which is generally defined as the frequency range of 300 kHz through 300 GHz. This frequency range sits between the electrical equivalent of audible sound and visible light. Audible sound is transmitted as changes in air pressure. Table 6-1 shows the broad classes of frequency definition.
From | To | |
---|---|---|
Audible Sound | 3 kHz | 20 kHz |
Radio (RF) | 300 kHz | 300 GHz |
Infrared | 300 GHz | 1014 |
Visible Light | ~ 8 × 1014 | ~ 8 × 1014 |
Ultraviolet | 1015 | 1017 |
X-Rays | 1015 | 1022 |
The lowest frequencies of the RF spectrum do not propagate readily; the highest frequencies behave more like visible light. Higher frequencies, ...
Get Residential Broadband, Second Edition now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.