# Is my head a transmitter?

**URL:** <https://boards.straightdope.com/t/is-my-head-a-transmitter/240052>\
**Category:** Factual Questions\
**Created:** [April 14, 2004, 10:42pm UTC](https://boards.straightdope.com/t/is-my-head-a-transmitter/240052 "2004-04-14T22:42:45Z")\
**Posts on this page:** 1\
**Page:** 2

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**Author:** ![Squink](https://avatars.discourse-cdn.com/v4/letter/s/b5e925/32.png) [@Squink](https://boards.straightdope.com/u/Squink)\
**Post date:** [May 27, 2004, 3:52pm UTC](https://boards.straightdope.com/t/is-my-head-a-transmitter/240052/21 "2004-05-27T15:52:19Z")

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A quick google turns up a frequency of ~433 MHz for these remotes. If right, that gives a wavelength of ~0.7 meters, which would make the skull a 1/2 to 1/4 wave resonant cavity.

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