
N RF Connector Installation .....Introduction For this discussion the type "N" female connector will be used. The professional term is to "terminate" the line with a connector, of some type. This is true for both LMR and Microwave applications. Therefore, when someone asks you what's the line terminated with, they are not referring to "killing" or destroying such line, but rather what the line ends, or "terminates" with.Installation These are the general tools you'll need to perform a N connector installation on medium size feed line, such as LMR-400 coaxial cable. The center picture shows the parts of the connector. Generally there are six parts, starting from the left: It's a good idea to put a piece of tape down the line about a couple of feet. This will keep the parts from sliding to far away and getting dirty on the floor/ground. Now, install the nut (noting correct direction), then the ring, then o-ring. Strip the line back about 3 inches. Later, when more proficient, you can cut less back. Strip only the outer (normally black) PVC insulation and leave the center dialectic intact at this point. Now, install the shield piece. (noting correct direction). When you install the piece in the correct direction you'll notice the o-ring will seat nicely on it's under side. |
| N Coax Connector Types, |
| N Male
Connector The N connector (in full, Type N
connector) is a
threaded RF connector used to join coaxial cables.
It was one of the first connectors capable of carrying
microwave-frequency signals, and was invented in the 1940s by Paul
Neill of Bell Labs, after whom the connector is named. N
connectors are the most common WiFi Antenna connections and are also
widely used in HAM and other Amateur Radio applications.
|
N Female Connector
Originally, the connector was designed to carry signals of up to 1 GHz in military applications, but the common Type N today handles up to 11 GHz comfortably. More recent precision enhancements to the design by Julius Botka at Hewlett Packard have scaled this to 18 GHz. The connector is hand-tightened and has an air gap between center and outer conductors. The coupling has a 5/8-24 thread. |
| BNC Male Connector The BNC (Bayonet Neill-Concelman) connector is a very common type of RF Connector commonly used for terminating coaxial cable. The BNC connector is used for RF signal connections, for analog and digital video signals, HAM Amateur Radio antenna connections, and many other types of equipment. |
| N Male Connectors | LMR-240 with N Male Connectors | ![]() |
LMR-400 N Male | ![]() |
| N Female Connectors | N Female connector (LMR-400) | ![]() |
LMR-400 N Female Connector (right) | ![]() |
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At one time all connectors were straight. Boys were boys and Girls were girls then along came the Government... In order to regulate WiFi and try to create connectors specialized for it's use we have the FCC and the wonderful concept of RP (Reverse Polarity). Now we have Females with Male Pins and Males with Female innards. See the picture here of SMAs, but TNCs, BNCs, Ns and others can all be Straight or RP depending on their use. Take a look at the photos and if you don't know which you need Please Ask. |
| Straight TNC Male Connectors | Standard TNC Male Connector | ![]() |
Standard Straight TNC Male Connection | ![]() |
| RP-TNC Male Connectors | Reverse Polarity TNC Connector Male
RP-TNC Connector Male |
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LMR-400 N Male to RP-TNC Male (right) | ![]() |
| Straight TNC Female Connectors | Female TNC Standard Connection | ![]() |
TNC Female Straight Connection |
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| RP-TNC Female Connectors | Back of Router RP-TNC Female Connection | ![]() |
Reverse Polarity TNC Connector Female | ![]() |
NMO Connectors MMCX Connectors MCX Connectors IPX Connectors Those we don't: Reverse Threads Reverse Polarity N SMB Connectors RCA Connectors SMC Connectors DIN Connectors C Connectors |
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