$GTCH SAN DIEGO, May 10, 2021 (GLOBE NEWSWIRE) -- GBT Technologies Inc. ( OTC PINK: GTCH ) ("GBT” or the “Company”), defined an HF antenna system for its long range radio prototype design. Designing HF systems requires determination and specification of the transceiver devices to achieve a reliable and high quality of communication especially in adverse terrain areas. The quality of transmissions will be characterized by few major factors including frequency, signal strength, propagation disturbances, noise and jamming considerations. Ionospheric RF waves propagation such as solar-cycle, daily and seasonal variations have a direct impact on the operating conditions. These elements need to be considered in the development of an HF antenna requirements.
https://seekingalpha.com/pr/18308793-gbt-is-r...-prototype
https://seekingalpha.com/pr/18308793-gbt-is-r...-prototype
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