What means
It marks the point where the circuit connects to an antenna.
A schematic is a simplified drawing of electrical components and their connections; the antenna sends or receives radio signals at that connection.
Where did this antenna character come from?
Its documented computer form is from the Sharp MZ-700's European display set.
The 2021 Unicode proposal traces it to slot B5 in the MZ-700's European alternate character table; the computer launched in 1982. The mark belonged to a set of schematic symbols designed to sit beside line-drawing characters, letting text make simple circuit diagrams. Unicode carried that on-screen glyph forward as a separate text character.
Questions people ask
1Why does show as a box on some devices?
Because that device's fonts have no glyph for it. The character is still correct and still copies correctly — the box is a missing glyph, not a broken character.
How to type
𜰈\1CC08Codes and encoding1 code points
A visible symbol can contain several code points. JS .length counts UTF-16 units; UTF-8 counts bytes.
