Spectrum Analyzer 7L12

Tektronix; Portland, OR

  • Year
  • 1972
  • Category
  • Service- or Lab Equipment
  • Radiomuseum.org ID
  • 257047

 Technical Specifications

  • Number of Transistors
  • Semiconductors present.
  • Semiconductors
  • Main principle
  • none
  • Wave bands
  • - without
  • Power type and voltage
  • Powered by external power supply or a main unit.
  • Loudspeaker
  • - - No sound reproduction output.
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: Spectrum Analyzer 7L12 - Tektronix; Portland, OR
  • Shape
  • Chassis only or for «building in»
  • Dimensions (WHD)
  • 140 x 127 x 369 mm / 5.5 x 5 x 14.5 inch
  • Notes
  • The Tektronix 7L12 is a swept-front end spectrum analyzer plug-in for all 7000-Series Oscilloscopes.


    CHARACTERISTICS

    Frequency Operating Range
    100 kHz to 1.8 GHz continuously variable; accuracy ± (10 MHz + 1% of dial indication).

    Frequency Span
    Calibrated 500 Hz/div to 100 MHz/div within 5% in 1-2-5 sequence. 0 Hz (analyzer, not swept) and maximum span (1.8 GHz) modes are also selectable. Span is continuously variable between steps.

    Calibrator
    50 MHz ±0.01%  -30 dBm ±0.3 dB. Harmonics of 50 MHz are generated for frequency span calibration.

    Reference Level
    Selectable -100 dBm to +30 dBm in 10 dBm steps. Continuously variable between steps.

    Log Display Mode Dynamic Range
    70 dB at 10 dB/div, accuracy 1 dB/10 dB to a maximum of ±1.5 dB over 70 dB range and 14 dB at 2 dB/div, accuracy 0.4 dB/2 dB for a maximum of 1.0 dB over the 14 dB range.

    RF Attenuation
    0 dB to 60 dB in 10 dB steps ± (0.2 dB or 1% of dB reading, whichever is greater).

    Resolution Bandwidth (6 dB down)
    300 Hz to 3 MHz in decade steps  ±20%; shape factor: 4:1, 60 dB to 6 dB.

    Video Filter Bandwidth
    Automatically selected by the resolution control.

    CW Sensitivity
    -115 dBm at 300 Hz Resolution; -108 dBm at 3 kHz Resolution: -100 dBm at 30 kHz Resolution; -90 dBm at 300 kHz Resolution: -80 dBm at 3 MHz Resolution.

    Internal Spurious Responses
    Less than -100 dBm, referred to first mixer.

    Intermodulation Distortion
    Third order: 70 dB down from two -30 dBm signals. Second order: 70 dB down from two -40 dBm signals (within any frequency span).

    Incidental FM
    Phase locked mode: 200 Hz (P-P) maximum; not phase locked: 20 kHz (P-P) maximum.

    Display Flatness
    ±1.5 dB over any selected span with respect to level at 50 MHz.

    Maximum Safe Input Power
    RF Attenuation 0 dB: +13 dBm. (-30 dBm linear operating limit) RF Attenuation 60 dB: +30 dBm (Power rating of attenuator).

    Sweep Rate
    1 µs/div to 10 ms/div in 1-2-5 sequence continuously variable between steps. Variable control has 100:1 range in 10 ms/div position to decrease sweep rate to approximately 1 s/div.

    Triggering Modes
    Normal, Peak-to-Peak Auto, Single Sweep.

    Triggering Sources
    Vertical amplifier channels line frequency and free run.

  • Net weight (2.2 lb = 1 kg)
  • 4.5 kg / 9 lb 14.6 oz (9.912 lb)
  • Price in first year of sale
  • 4,850.00 USD
  • Mentioned in
  • - - Manufacturers Literature
  • Author
  • Model page created by Pius Steiner. See "Data change" for further contributors.

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