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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]
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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The Pressure Equipment Directive (PED) 2014/68/EU (formerly 97/23/EC) [1] of the EU sets out the standards for the design and fabrication of pressure equipment ("pressure equipment" means steam boilers, pressure vessels, piping, safety valves and other components and assemblies subject to pressure loading) generally over one liter in volume and having a maximum pressure more than 0.5 bar gauge.
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CFR Title 49 - Transportation is one of fifty titles comprising the United States Code of Federal Regulations (CFR). Title 49 is the principal set of rules and regulations (sometimes called administrative law) issued by the Departments of Transportation and Homeland Security, federal agencies of the United States regarding transportation and transportation-related security.
Safety service (also: safety radiocommunication service or safety-of-life service) is – according to Article 1.59 of the International Telecommunication Union's (ITU) Radio Regulations (RR) [1] – defined as «A radiocommunication service used permanently or temporarily for the safeguarding of human life and property.»
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