Maybe. Recovering data on interstellar distances is hard.
Integrating a long time to see if there's a signal there above background levels is maybe not so hard (especially if it was intended for detection in this scenario).
The big issue for data recovery is energy per symbol. If you can integrate for hours, that can still be a lot of "special photons" (whether they're on a weird radio frequency or light wavelength).
Integrating a long time to see if there's a signal there above background levels is maybe not so hard (especially if it was intended for detection in this scenario).
The big issue for data recovery is energy per symbol. If you can integrate for hours, that can still be a lot of "special photons" (whether they're on a weird radio frequency or light wavelength).