7L12: Difference between revisions

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title=Tektronix 7L12 |
title=Tektronix 7L12 |
summary=1.8 GHz Spectrum Analyzer |
summary=1.8 GHz Spectrum Analyzer |
image=tek-7l12.jpg |
image=Tek-7l12-led-front.jpg |
caption=Tektronix 7L12 (early model) |
caption=Tektronix 7L12 (later model) |
introduced=1971 |
introduced=1971 |
discontinued=1988 |
discontinued=1988 |
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|}
|}
==Links==
==Links==
* [http://www.amplifier.cd/Test_Equipment/Tektronix/Tektronix_7000_series_special/spectrumanalyzer_7L12.htm Tek 7L12 @ amplifier.cd]
* [http://www.barrytech.com/tektronix/tek7000/tek7l12.html Tek 7L12 @ barrytech.com]
* [http://www.barrytech.com/tektronix/tek7000/tek7l12.html Tek 7L12 @ barrytech.com]
* [http://www.amplifier.cd/Test_Equipment/Tektronix/Tektronix_7000_series_special/spectrumanalyzer_7L12.htm Tek 7L12 @ amplifier.cd]


==Pictures==
==Pictures==
<gallery>
<gallery>
File:Two 7L12s.jpg
File:Tek-7l12-led-front.jpg | 7L12, later version with LED reference level display, front
File:Tek-7l12-left.jpg  | Left side
File:Tek-7l12-top.jpg  | Top view
File:Tek-7l12-right.jpg  | Right side
File:Tek-7l12-bottom.jpg  | Bottom view
File:Tek-7l12-bottom-front.jpg | Bottom front
File:Tek-7l12-bottom-center.jpg | Bottom center
File:Tek-7l12-top-front.jpg | Top front
File:Two 7L12s.jpg | later and early model side by side
File:tek-7l12.jpg | early model
</gallery>
</gallery>



Revision as of 04:19, 28 June 2015

Template:Plugin Sidebar 2

The Tektronix 7L12 is a 1.8 GHz Spectrum Analyzer plug-in for 7000-series scopes. It is a double-width plugin to be installed in the right vertical and left (or only) horizontal bay.

Early models had a mechanical reference level readout. Later, front panel outputs for 1st and 2nd LO were added to allow connecting a TR501 or TR502 tracking generator. Late models had LED reference level readout.

The 7L12 does not have the UNCAL indicator typical for spectrum analyzers that alerts the operator when the sweep speed is too fast for the given resolution.

Key Specifications

Input frequency 100 kHz – 1.8 GHz
Span 500 Hz/Div – 100 MHz/Div
Sweep 1 μs/Div to 5 ms/Div (1-2-5)
Resolution bandwidth 300 Hz – 3 MHz in decade steps
Sensitivity -115 dBm at 300 Hz
Vertical scale 10 dB/Div, 2 dB/Div or linear
Reference level -100 dBm – +30 dBm
Video filters 30 kHz, 300 Hz or 3 Hz
Features
  • Automatic phase lock
  • Built-in calibrator
  • Base line clipper

Prices

Year Price 2015 value
1971 $4,850 $28,100
1980 $6,500 $18,500
1988 $12,500 $24,800

Links

Pictures