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The connector reliably carries signals at frequencies up to 100 MHz. [1] The coupling shell has a 5 / 8 inch 24 tpi UNEF standard thread. [4] The most popular cable plug and corresponding chassis-mount socket carry the old Signal Corps labels PL-259 (plug #259) and SO-239 (socket #239). [12]
LEMO 00 connector, a proprietary push-pull 50 Ω coaxial connector; MCX connector; Microdot S-50 series connector, a proprietary 50 Ω coaxial connector; Mini-BNC connector; Mini-UHF connector, a smaller and much newer design than the standard UHF; SMA connector A 50 ohm screwed connection. The 0.9mm centre pin is the same diameter as the ...
An RF connector must not allow external signals into the circuit through electromagnetic interference and capacitive pickup. Mechanically, RF connectors may provide a fastening mechanism ( thread , bayonet , braces, blind mate ) and springs for a low ohmic electric contact while sparing the gold surface, thus allowing very high mating cycles ...
"The "classic" PL-259 connector is resistant to damage even if stepped on accidentally" That may have been true 30 years ago when nickle plated brass PL259's were common. Good luck finding those in the average ham shack today as most hams don't have the soldering skill to solder nickel plate.
The N connector (also, type-N connector) is a threaded, weatherproof, medium-size 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.
The flange design, inner and outer conductor dimensions are standardized, by EIA, in the RS-225, 50 Ω (ohm), and RS-259, 75 Ω, standards. They are commonly referred to by the inner diameter of the outer conductor in fractional inches.
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