General Radio 874 Fixed Air Lines used or new for sale at Used-Line
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General Radio 874 Fixed Air Lines () Main Features and Specifications

Product Specs

  • Status -

GR874 fixed air lines for 50 Ω systems are used as spacing interconnecting elements of a coaxial system, as time-delay elements, and as absolute impedance references in time-domain reflectometry. Each air line consists of a length of 50 Ω, air-dielectric coaxial line with a GR874 connector at each end.

  • 874-L10 / L20 / L30, 10 / 20 / 30 cm,  non-locking
  • 874-L10L / L20L / L30L, 10 / 20 / 30 cm, locking
  • Frequency: dc to 7 GHz, 9 GHz if locked
  • Impedance: 50 Ω
  • Input voltage: Up to 1500 Vpeak

The GR874 fixed air line for 75 Ω systems is used as a spacing stub or other element of a coaxial system or as a time-delay element or impedance standard in a time-domain reflectometer. 

  • 874-L30 (75 Ω) rigid air line
  • Frequency: dc to 2 GHz
  • SWR: <1.01 +1.015 fGHz to 2 GHz