Observed arrival · 2026-10-29
DATASAT’s “signal without a trace”
Credibility concern recorded. The source reference remains available for verification and correction.
DATASAT proposes satellite-to-ground messaging for controlled sites, claiming that observers outside a site’s perimeter cannot detect transmissions.
- For
- Defense and sovereign-site operators
- Worth noticing
- The page contrasts a claimed ~5-bit unfenced limit with 14,200+ bits per pass for a 0.5-km site.
Field notes
The public page lays out a model in which a site's controlled perimeter changes the signal available to an outside observer. It specifies an apodized sub-THz aperture and an epsilon bound of 10^-3, then reports a sidelobe figure below -36.8 dB. These are presented as DATASAT's technical claims; the supplied evidence does not show independent review or a deployed system.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
One card from the complete issue