Talk:TNC connector

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[edit] Moving to TNC connector

I like to move this to TNC connector to match BNC connector. Those are the terms in common use. --agr 04:43, 9 September 2005 (UTC)

I agree. KMS 00:07, 7 October 2007 (UTC)

OK, I'll ask an admin for help because TNC has an edit history that doesn't allow regular users to do the move. Han-Kwang (t) 12:04, 7 October 2007 (UTC)

I've moved the page, per the above request. -GTBacchus^(talk) 21:32, 7 October 2007 (UTC)

[edit] 75 ohm versions

Need to reflect the FACT that 75 ohm variation exists, even though it is less common in use today. I still sell them to the military for repairs on older equipment still in use...

Can you get a photo of one? Meggar 23:33, 17 September 2006 (UTC)

[edit] Different specs for TNC vs BNC

Why does the TNC outperform BNC ? Looking at the mechanics, inner conductor, die electric and the fingering (all of which make up the electrical path) appear to be identical. Surely the mechanical attachment (threaded TNC, bayonet BNC) should have very little to do with performance.

http://www.amphenolconnex.com/products/bnc.asp -- 11GHz

http://www.amphenolconnex.com/products/tnc.asp -- 11GHz

Thought, comments, observations please. I have been pondering this one for a while now. Markaren1 09:44, 1 September 2007 (UTC)

I'm not sure why you mention 11 GHz for both of them. According to the specs pages you mention it's "0-4 GHz with low reflection" for BNC, and "0-11 GHz" for TNC. But the picture looks like the electrical connection is exactly the same. I've never had a TNC in my hands, but I could imagine that a TNC allows less "wiggle" after mating, which means that the quality of the connection is more reliable. Han-Kwang (t) 10:13, 1 September 2007 (UTC)

Leakage. Those Amphenol pages rate RF Leakage as -60 dB minimum @ 3 GHz for TNC, but -55dB for BNC. The threaded coupling leaks less. Meggar 20:19, 1 September 2007 (UTC)

That makes sense, although either 55 or 60 dB seem to be negligible amounts of power to me. It's strange that all manufacturers mention 4 and 11 GHz and none actually give numbers for the performance at those cutoff frequencies. Amphenol mentions somewhere else on the page that BNC is usable up to 11 GHz, but up to 4 GHz with low reflection. That actually doesn't imply that TNC does have low reflection up to 11 GHz. Han-Kwang (t) 21:35, 1 September 2007 (UTC)