Talk:N connector

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[edit] Usage

Someone marked 'citation needed' after "connecting these two types of cable together can cause damage" - you really need a citation to see how connecting a 50 ohm cable to a 75 ohm cable could damage something?? —Preceding unsigned comment added by 72.82.193.162 (talk) 01:30, 17 December 2007 (UTC)

[edit] Urban Legend

'Some Urban Legend information relating to the "N" connector:

Firstly,to quote the Amphenol web site:

"TYPE N CONNECTOR SERIES... Named after Paul Neill of Bell Labs after being developed in the 1940's, the Type N offered the first true microwave performance. The Type N connector was developed to satisfy the need for a durable, weatherproof, medium-size RF connector with consistent performance through 11 GHz."

http://www.amphenolrf.com/products/typen.asp

The rumor over how it was named...

Legend has it that British commandos in WWII parachuted into scandinavia to gain intelligence on Axis radar technologies. Once overtaking a remote German radar site, their technicians dissected the site and found (among other things) a unique RF connector. This connector was self-cleaning, weather tight, and perfect for the then ultra high and microwave frequencies.

The team brought some examples back to England, where they were reverse engineered and put to use for the war effort. Engineers quickly referred to the connector as the "Nazi" connector. The engineering staff could not bring themselves to utter the word "Nazi", so this type of connector was referred to as the "Type N connector." After more reverse engineering, the allies came up with a more compact version called the BNC connector - originally called the "Bayonet "N" connector" or the more palitable "British Naval Connector"

The truth of the matter is that the N connector was invented By Paul Neill of Bell Labs and most likely pilfered by the Nazis prior to WWII. Another connector (the C connector) is attributed to a fellow Bell Lab engineer named Concelman. A hybrid of the two designs was designated the BNC (Bayonet Neill Concelman) connector.

The bit about commando parachuting into Scandanavia is presumably a garbled version of the Bruneval (i.e. France) raid by members of the 1st Parachute Brigade. Perhaps gives an indication of the accuracy of the rest of the story. --jmb 08:36, 22 March 2007 (UTC)

[edit] Hand Tightened

  • What is the exact meaning of 'hand tightened'? Tightening like bolt and nut? --- Hyungjin Ahn ahj6@hotmail.com 2007-01-14 13:02:59

It means "tightened by hand." If you look at the connector, it has a knurled outer surface, suitable for gripping by the fingers, and interior threads. The alternative might be "wrench-tightened." ---- David Duncan Scott

Probably hand-tightened as opposed to a connector like a C or BNC which being bayonet connectors are either connected or not connected, also SMA which are tightened with a torque wrench and some larger connectors which are held together with nuts and bolts. --jmb 08:36, 22 March 2007 (UTC)

[edit] 50 ohm / 75 ohm

"rv - no personal experience, but 75 ohm means thicker central pin, damaging the 50 ohm female.."

75 ohm is red
75 ohm is red
  • Actually the 75 ohm N connector has a smaller pin than the 50 ohm N connector. If you look at the pictures that I posted previously, 75 ohm is the one with the red insulator. C Connector is the opposite way around I think but would need to check. --jmb 20:12, 1 August 2007 (UTC)
Hmm, OK. Although if one IP editor adds a whole paragraph about possible damage and then another one reverses it, and neither gives a ref, who should we believe? Han-Kwang 20:40, 1 August 2007 (UTC)

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[edit] Dimensions?

  • I am looking for a source for mechanical dimensions/drawings for this and other RF connectors. Anyone have a good source? (as I type this I'm thinking "gee, if there were one, it would probably already be linked!") Failing a general source, can anyone tell me the outer diameter of an N-type connector? I need to be able to fit my cable through a 3/4" conduit and need to decide whether getting an antenna with a female N-type connector will mean the corresponding male connector is too big for the conduit. Much thanks. 129.97.90.182 (talk) 20:25, 5 May 2008 (UTC) Rob Gorbet