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HOME Test and Measurement Coaxial Hardware Air Lines General Radio GR900 50-Ohm Air Lines For Sale General Radio 900-L15

General Radio 900-L15

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General Radio 900-L15
  • $250

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Description of General Radio 900-L15

Categories: Coaxial Hardware, Air Lines

Manufacturer: General Radio

Model: GR900 50-Ohm Air Lines

Condition: Used

Seller: Western Test Systems

GENERAL RADIO 900-L15 15cm Air Line, GR900, DC-8.5 GHz

In stock

Product specifications of General Radio 900-L15 (From Used-Line T&M Specifications)

  • Launch Date
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Reference Air Lines are for use in calibrations, especially in substitution measurements, as precision capacitance or time-delay standards, as well defined reactance standards, as dielectric sample holders for delectric-constant and loss measurements with slotted lines and network analyzers, and as absolute impedance references in time-domain reflectometry. The 900-LZ series are beadless, virtually reflectionless coaxial air lines, with spring-loaded supporting tips on the ends of the inner conductor to mate with GR900 connectors; microfinished outer-conductor ends make buff contact with the mating connectors.

  • 50 Ω reference air lines
    • 900-LZ3: 2.998 cm, 2.0 pF capacitance, 100 ps time delay ±0.1 ps, (2n + 1) 2.50 GHz odd λ/4 frequencies
    • 900-LZ5: 4.997 cm, 3.3333 pF capacitance, 166.7 ps time delay ±0.1 ps, (2n + 1) 1.50 GHz odd λ/4 frequencies
    • 900-LZ6: 5.996 cm, 4.0 pF capacitance, 200 ps time delay ±0.1 ps, (2n + 1) 1.25 GHz odd λ/4 frequencies
    • 900-LZ7H: 7.495 cm, 5.0 pF capacitance, 250 ps time delay ±0.1 ps, (2n + 1) 1.0 GHz odd λ/4 frequencies
    • 900-LZ10: 9.993 cm, 6.6667 pF capacitance, 333.3 ps time delay ±0.1 ps, (2n + 1) 0.75 GHz odd λ/4 frequencies
    • 900-LZ15: 14.99 cm, 10.0 pF capacitance, 500 ps time delay ±0.1 ps, (2n + 1) 0.5 GHz odd λ/4 frequencies
    • 900-LZ30: 29.979 cm, 20.0 pF capacitance, 1000 ps time delay ±0.1 ps, (2n + 1) 0.25 GHz odd λ/4 frequencies
  • Frequency: DC to 8.5 GHz
  • SWR: <(1.0005 + 0.0002 fGHz)
  • Input voltage up to 3000 Vpeak
  • Insertion loss: <(0.0008 √fGHz) dB/cm
  • Leakage >130 dB below signal 
  • DC contact resistance each end, when mated with GR900 connector: <0.07 mΩ for outer connector, <0.5 mΩ for inner conductor

Precision air lines are useful as low-SWR line extenders, as 50 ohm impedance standards at frequencies at which the electrical length is an odd multiple of a quarter wavelength, as capacitance and time delay standards, and as absolute impedance standards in time-domain reflectometry. Each line consists of a short section of precision 50 ohm air line with a GR900 connector at each end.

  • 50 Ω precision air lines
    • 900-L3: 3 cm, 2 pF capacitance, 100 ps ±1 ps time delay, <0.005 √fGHz dB insertion loss
    • 900-L10: 10 cm, 6.6667 pF capacitance, 333 ps ±1 ps time delay, <0.012 √fGHz dB insertion loss
    • 900-L15: 15 cm, 10 pF capacitance, 500 ps ±1 ps time delay, <0.016 √fGHz dB insertion loss
    • 900-L30: 30 cm, 20 pF capacitance, 1000 ps ±1 ps time delay, <0.028 √fGHz dB insertion loss
  • Frequency: DC to 8.5 GHz
  • SWR: <(1.0013 + 0.0013 fGHz)
  • Input voltage up to 3000 Vpeak
  • DC contact resistance each end, when mated with GR900 connector: <0.07 mΩ for outer connector, <0.5 mΩ for inner conductor

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