What is RF hash?

Question

Ok, I get that "RF hash" is some sort of slang for "RF interference" (think CB), but does it refer to a particular type or source of interference? Do tell.

score 5 · Accepted Answer · answered Jan 06 '18 at 18:58

Discovered on another thread (eham) that "RF hash" is slang for broadband noise, meaning a) RF interference that has an unusually large bandwidth (continuously spread) or b) covers multiple frequency ranges over an unusually large spectrum (non-continuous spread).

score 1 · Answer 2 · answered Apr 13 '19 at 16:51

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Hash is wide band radiated noise. But it doesn't have to be wide band. Radiated is the key word here. Which is why it's usually related to RF. It can also occur at audio frequency.

answered Apr 13 '19 at 16:51

user14694

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score 1 · Answer 3 · answered Jan 05 '18 at 15:48

When I think of "RF Hash" I think of a constant "sparky" sort of interference, like an insulator arcing, or RF noise from an electric motor or some gas discharge lamps or lamp dimmers. Compared to, say, lightning (non-repetitive) or white noise (not "sparky".) Whether that's the CBers definition or not, I don't know.

What is RF hash?

3 Answers3