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GBT Evaluating Self-Tune HF Antenna Technology for its Long-Range Radio System

SAN DIEGO, Aug. 10, 2021 (GLOBE NEWSWIRE) -- GBT Technologies Inc. ( OTC PINK: GTCH ) ("GBT" or the "Company"), is now evaluating and testing self-tuned antenna technology in order to enhance its Infinia Long Range radio performance. An automatic a