Selected problems for implementation of broadband radio connectivity in the field of HF
[Referat wygłoszony na: 10th International Scientific Conference Communication and Information Technologies (KIT 2019), 09-11.10.2019 r., Tatranske Zruby, Słowacja]
Abstract: The article presents the characteristics of broadband HF radio communications. Basic military standards for the broadband HF radio are briefly described. The state of knowledge about standards and basic issues related to the work of electrically small antennas for wideband transmission (WBHF and HF-XL) is presented. The scope of the article is limited to the skywave HF communications. It is due to the fact that the groundwave broadband radio communications is practically realized on higher frequencies (e.g. VHF, UHF). Results of simulations and measurements of the operating bandwidth of various types of HF antennas made in the test set with RKP-8100 radios produced by CTM are presented.
Keywords: WBHF, HF-XL, antenna matching.