Posted by Elizabeth Klinc, KE8FMJ on December 21, 2021 at 7:25 pm CLICK FOR NVIS NVIS stands for Near-Vertical Incidence Skywave. It is used for local-to-medium distances on HF. This is the opposite of DX, which is meant for long distances. The radio waves from NVIS travel near-vertically upwards into the ionosphere, where they are refracted back […]
Category: HF
KE4IDW and NE4LS: Boynton Beach Portable
What follows is a local field experience by John KE4IDW and Nelson NE4LS CLICK for Google 2D Map then zoom out for perspective Hi to all For those who didn’t come out to the Boynton Beach Inland Park, well you missed a great time. The weather was great and the radio gods were smiling upon […]
Propagation – A Index and K Index
The Earth’s magnetic field is continuously monitored by a network of magnetometers. These readings are converted into the A and K index values. The K index is computed once every three hours (eight times a day) and the values can range from 0 to 9, with 0 being inactive, and 9 representing an extreme severe […]
HF: 60 meter DX operation
It’s heartening to see that our new FT8 mode has enlivened the 60 Meter band DX activity, to the extent that more than a few ops have achieved working over 100 countries in relatively short periods of time, and while using antennas that were originally designed for other bands. The 60m band is hopping in […]