$GTCH is providing an update about the continuation of its efforts to evaluate Software Defined Radio (SDR) technology for its GEN II long-range radio system. https://www.globenewswire.com/news-release/2022/02/08/2380822/0/en/GBT-Provides-Update-on-its-Continued-Evaluation-of-the-Software-Defined-Radio-Technology-for-GEN-II-Long-Range-Radio-System.html