A radio receiver often uses a signal of an intermediate frequency: http://en.wik... | Hacker News

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		mcculley on May 25, 2015 \| parent \| context \| favorite \| on: Show HN: Compass that points you to a photo's EXIF... A radio receiver often uses a signal of an intermediate frequency: http://en.wikipedia.org/wiki/Intermediate_frequency So a receiver that would appear functionally to be passive could still conceivably cause interference.

michaelmior on May 26, 2015 | [–]

Cool. Was not aware of the usage of intermediate frequencies in radio receivers. Thanks for the knowledge :)

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