Fade Margin Calculator
Calculate fade margin and link reliability using Vigants-Barnett model for microwave links.
Calculation Mode
FM = Pr - Sensitivity
Using Vigants-Barnett fading model
Fade Margin
20.00 dB
Link Reliability: 99.9925%
0.0075%
Outage Prob
39.4
Min/Year
Required FM for Reliability
99%1.2 dB (OK)
99.9%-8.8 dB (OK)
99.99%-18.8 dB (OK)
99.999%-28.8 dB (OK)
Typical Fade Margins
| Application | FM (dB) |
|---|---|
| Carrier Grade (99.999%) | 30-40 |
| Enterprise (99.99%) | 20-30 |
| Business (99.9%) | 15-20 |
| Best Effort (99%) | 10-15 |
| Indoor WiFi | 10-20 |
| Point-to-Point MW | 25-40 |