EXPERIMENTAL - WORK IN PROGRESS - MAY GIVE WEIRD RESULTS
| Longley-Rice Path Loss Analysis |
| A service of GBPPR Radiation Laboratory |
EXPERIMENTAL - WORK IN PROGRESS - MAY GIVE WEIRD RESULTS
| Transmitter Site |
- Uses Shuttle Radar Topography Mission elevation data for terrain generation.
- Plotting done using SPLAT! by John A. Magliacane (KD2BD)
- Ground clutter has the effect of raising the overall terrain by the specified amount, except over areas at sea-level and at the transmitting and receiving antenna locations.
- K-Factor of 1.0 is the true Earth radius and Infinity is a flat Earth. Radio waves tend to "travel farther" than optical waves due to atmospheric refraction. A K-Factor less than 1.0 means the RF path bends upwards into the atmosphere, while a K-Factor greater than 1.0 mean it bends downward. A K-Factor of 4/3 (1.333) is often used as a compromise.
- Reception is usually described as LR(50/90). This is a 50% confidence that reception will be received 90% of the time.
- Press Submit to see an example. Only press Submit once! It will take awhile for the plotting to complete.
Other Analysis Programs