When the AMSAT-OSCAR 7 (AO-7) amateur radio satellite was launched in 1974, its expected lifespan was about five years. The plucky little satellite made it to 1981 when a battery failure caused it to ...
AST SpaceMobile’s attempt to justify its use of the amateur radio band for its satellites has done little to assuage concerns from the ham radio community. “AST is again economical with the truth,” an ...
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