Difference between revisions of "Point to Point Microwave Link Design"
From PathlossWiki
| Line 26: | Line 26: | ||
|87.6 | |87.6 | ||
|- | |- | ||
| − | | | + | |99.9% |
| − | | | + | |31536 |
| + | |525 | ||
| + | |8.76 | ||
|- | |- | ||
| − | | | + | |99.99% |
| − | | | + | |3153 |
| + | |52.5 | ||
| + | |0.876 | ||
| + | |- | ||
| + | |99.999% | ||
| + | |315 | ||
| + | |5.3 | ||
| + | |0.088 | ||
|} | |} | ||
Revision as of 13:17, 21 February 2020
Fade Mechanisms
Microwave fades fall into the following categories:
- Multipath fading
- Obstruction fading
- Fading due to a specular reflection
- Ducting and propagation anomalies
- Rain fading (above ~ 8 GHz)
With the exception of rain fading, microwave fading only depends on the change of the refractive index with height along the path
| Availability | Seconds | Minutes | Hours |
|---|---|---|---|
| 99% | 315360 | 5256 | 87.6 |
| 99.9% | 31536 | 525 | 8.76 |
| 99.99% | 3153 | 52.5 | 0.876 |
| 99.999% | 315 | 5.3 | 0.088 |
