I was just wondering what the word "threaded" refers to in the context of a Threaded Neill-Concelman (TNC) connector. I know threaded wires contain thin metallic threads for flexibility, but I don't think this is what threaded in TNC is talking about.
Thank you.
Because the connector is threaded. It has nothing to do with wire, it has everything to do with the actual connector (as it should). You have to screw the connector down to make the connection.
The "Threaded" is there to differentiate it from the related BNC connector, which uses a bayonet type of mechanism to ensure a mechanical connection. Push down and twist, presumably how bayonets are attached.
Michael
You are thinking of stranded wire, not threaded wire. A stranded wire is made of several strands of small wire, twisted together.
The coupling ring of a TNC connector is threaded, like screws and nuts are threaded. A closely related connector is the BNC - Bayonet Neill-Concelman - the coupling ring on a BNC locks with a 1/4 turn, where a TNC will take several turns to lock securely.
The UHF or PL-259 connector used for radio antennas, and the "F" connector used for cable TV in North America also have threaded coupling rings.
Makes me wonder why the socket end is called an SO-239 rather than an SO-259 :-)
It's just that those were the next available numbers in the "SO" (socket) part number queue and the "PL" (plug) queue. It's only coincidence that the 2 and 9 match. :-)
Cheers! Rich
threaded as in nut-and-bolt
It's otherwise identical to BNC the bayonet-N.C. connector, (used on the front of lab equipment like oscilloscopes and on the back of (ancient) 10-base-2 network cards.)
I'm sure wikipedia can adequately explain the similarities between the working of the BNC and the fixing of a knife to the muzzle of a carbine.
Bye. Jasen
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