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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.
 
M

Michael Black

Jan 1, 1970
0
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
 
P

Peter Bennett

Jan 1, 1970
0
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.

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.


--
Peter Bennett, VE7CEI Vancouver BC, Canada
peterbb4 (at) interchange.ubc.ca
new newsgroup users info : http://vancouver-webpages.com/nnq
GPS and NMEA info: http://vancouver-webpages.com/peter
Vancouver Power Squadron: http://vancouver.powersquadron.ca
 
R

Rich Grise

Jan 1, 1970
0
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
 
J

jasen

Jan 1, 1970
0
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.

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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