Understanding the LUF and CF is crucial to NVIS operation. Watch this global NVIS propagation map and practice operating skills until picking a band for NVIS comms can be done using Kentucky windage.
Propagation
Estimating NVIS comms ranges
The good people at AmRRON posted an article about Radius Mapping. Using the GitHub tool linked in that article, you can place circles of any radius on a map.
The picture above is a 50 mile radius and 300 mile radius from St. Paul, MN. This is good base information for a radio ‘DOPE book’; field validation is the next step.
Skip zone – Wikipedia
Overcoming the ‘skip zone’ is what NVIS is all about. Study and understand your obstacles. More info soon.
echo delta sierra 