Erratum to: Radio communication via Near Vertical Incidence Skywave propagation: an overview
1 Erratum to: Telecommun Syst DOI 10.1007/s11235-017-0287-2
The following sentence in section 2.5 of the article needs to be revised.
“Walden  reports that several propagation prediction models neglect the effect of the extraordinary wave.”
“Walden  reports that several propagation prediction models account for the extraordinary wave in MUF predictions.”