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If I understand this correctly, the backscatter is always there. It's residual radiation from the Big Bang. It's also why analogue tv sets show static when not
by barbs 13y ago
If I understand this correctly, the backscatter is always there. It's residual radiation from the Big Bang. It's also why analogue tv sets show static when not tuned to a station. TV and Radio stations output a signal that's much stronger than the backscatter, so that's what gets received by the TV or radio set.
I could be wrong about any of this though...
- oakwhiz 13y agoI think you may be referring to cosmic background radiation. That's a different thing from backscatter off of an ambient radiation source.