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History of the F connector
The “F” connector doesn’t seem to have been named for anything (unlike the “N” connector for example which was named for its inventor Paul Neill.) If may have been named because it works for RF, UHF, and VHF, which all have the letter F in them, but that’s just speculation. What is known is that it was invented in the 1950s and became common on TVs when antennas started using 75 ohm cable.