Wi-Fi on a Boat
From Navas Wireless Wiki
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* ''concentrating radio energy/sensitivity'' to/from the desired direction instead of wasting it in pointless directions, and | * ''concentrating radio energy/sensitivity'' to/from the desired direction instead of wasting it in pointless directions, and | ||
* ''reducing [[wikipedia:Co-channel interference | interference]]'' from other radio sources not in the desired direction (path). | * ''reducing [[wikipedia:Co-channel interference | interference]]'' from other radio sources not in the desired direction (path). | ||
| - | The improvement in antenna performance is referred to as ''[[wikipedia:Antenna gain | gain]]'', where a higher number indicates the amount of performance improvement expressed in ''[[wikipedia:Decibel | dBi]]''. ''It takes an increase of 6 | + | The improvement in antenna performance is referred to as ''[[wikipedia:Antenna gain | gain]]'', where a higher number indicates the amount of performance improvement expressed in ''[[wikipedia:Decibel | dBi]]''. ''It takes an increase of 6 dB to double range; e.g.,'' as compared to a typical 2 dBi antenna, an 8 dBi antenna has double the range. |
However, a highly directional antenna can be problematic on a boat, since it must be kept aimed accurately at the remote end of the connection, which can be difficult on a boat floating in the water (even when tied up). The width (angle) of the directional pattern (both vertically and horizontally) can be used to see how accurately the antenna must be aimed. | However, a highly directional antenna can be problematic on a boat, since it must be kept aimed accurately at the remote end of the connection, which can be difficult on a boat floating in the water (even when tied up). The width (angle) of the directional pattern (both vertically and horizontally) can be used to see how accurately the antenna must be aimed. | ||
