When the Japanese JJY station shut down because of the tsunami, some people made signal generators using audio signals eg http://jjy.831337.xyz/ http://jjy.8313

When the Japanese JJY station shut down because of the tsunami, some people made signal generators using audio signals eg http://jjy.831337.xyz/ http://jjy.831337.xyz/ Would something similar be possible for WWVB?